Assessment of Indoor Climate: Learning from Buildings

Size: px
Start display at page:

Download "Assessment of Indoor Climate: Learning from Buildings"

Transcription

1 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Assessment of Indoor Climate: Learning from Buildings Outdoor climate Edward Arens Center for the Built Environment UC Berkeley Indoor climate Energy Use Industry 7% Buildings 6% Transportation 27% Buildings use 68% of electricity Most building energy goes to conditioning the indoor environment Helping solve the energy problem Need a major creative effort by everyone involved to design and operate efficient and acceptable indoor environments Assessment of indoor climate (feedback) is key Buildings (and their systems) People (building occupants and operators) Assessing indoor climate Researchers Designers Bldg owners Bldg operators Commissioning agents Employers Occupants Developing standards; design guidance Obtaining feedback about designs and use of technology Evaluating quality of buildings and their maintenance staff Operating setpoints; diagnosing failures and complaints Feedback during HVAC system calibration Employees satisfaction and productivity Managing their environmental control costs Center for the Built Environment (CBE) Page 1

2 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Assessment techniques 1. Mobile comfort carts 2. Stationary indoor climate monitor. Commissioning cart with wireless sensor array 4. Homeowners energy information system 5. Right-now surveys 6. Comfort polling station 7. Web-based indoor environmental quality survey These appear in example research projects Example 1: research on thermal comfort ASHRAE research on operating buildings in 198 s and 9 s Was Standard 55 being followed in real buildings? Were the criteria correct? Involved detailed measurement of physical environment and occupant responses 16 bldgs Thermal comfort assessment carts Right now occupant survey scales Mark 1 Mark 2 Analyzing the ASHRAE comfort database: Example 2: Commissioning cart project Centrally-controlled HVAC bldgs Naturally ventilated buildings indoor comfort temp Top ( o C) outdoor temperature index, ET* (oc) Predicted: Lab-based PMV model Observed: Field-based adaptive model indoor comfort temp Top ( o C) outdoor temperature index, ET* (oc) dedear and Brager used these data to develop the Adaptive Comfort Model, now in Std. 55, for operable windows The commissioning cart was inspired and funded by the New York Times One of three specialized carts for commissioning new building systems in their headquarters Lighting Shades Underfloor thermal and ventilation system Center for the Built Environment (CBE) Page 2

3 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Commissioning for thermal stratification Commissioning cart Height, ft cfm/sq. ft.6 cfm/sq. ft. cfm/sq. ft ASHRAE Std F T Room Temperature, F Still satisfies vertical temperature difference (5 F) with 4% less air Temperature profiling up to 5 meters Telescoping stratification measurement tree Cart laptop computer Lanyard for raising tree Data acquisition boards 12 VDC Battery power system Pressure sensor, with plastic tubing tether (with internal thermocouple) Cart display screens Examples & 4: assessment for demand response Electrical demand shedding and shifting (precooling):. residential Cal ISO Daily Peak Loads January 1, 2 - December 1, 2 4. commercial Peak Day August GW Commercial AC 1 GW!! GW 5 25 Residential AC 2 2 artificial loads 7 motes Jan- Feb- Mar- Apr- May- Jun- Jul- Aug- Sep- Oct- Nov- Dec- Demand-response electrical appliance manager Thermal comfort Temperature, radiation, air velocity, humidity, preference Ambient intelligence Power actuators Price Indicator Temperature sensors Price Utility Power sensor Realtime Meter Electricity used Occupancy Motion, sound, CO 2, schedule Envelope Window position, blind position, air velocity Lighting Illumination Glare New integrated building control system Expanded user interface for input, data output, advice Provide information Suggest action Informing occupants; Manual actuation Automatic actuation Shading Window Blinds AC Vent HVAC Adjust position Refriger Occupancy sensors Temperature, humidity, pressure, air velocity Energy and Power Voltage, current, power factor, fuel flow, price Start/stop on/off Reset setpoint Lights Computer Office devices Center for the Built Environment (CBE) Page

4 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Automated thermal comfort polling stations Studies of transient occupancies Logs simultaneous physical measurements Example 5: CBE Indoor Environmental Quality survey Data from 2 buildings 47,+ occupants 1 green buildings For building evaluation and problem diagnosis Other uses Polling station in a bank Indoor Environmental Quality survey IEQ survey categories Web-based, consistent questions over time Automatic reporting tool Background Location Spatial Layout Office Furnishings Thermal Comfort Air Air Quality Lighting Acoustics Clean/Maint General Comments Drill-down questions Thermal branching page: causes of complaints Satisfaction Scale Next survey topic Branched to a follow-up page with questions regarding nature and cause of dissatisfaction Center for the Built Environment (CBE) Page 4

5 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 IEQ Survey results Thermal satisfaction: 2 nd lowest category How satisfied are you with the temperature in your workspace? Number of respsonses 1, 8, 19% 6, 14%1% 15% 16% 16% 4, 6% 2, very dissatisfied very satisfied Overall: 58% of respondents satisfied Distribution of thermal satisfaction 11% of buildings meet acceptability standard Number of buildingsx % 15% 24% 21% 15% 9% 1% 1% -9% 1-19% 2-29% -9% 4-49% 5-5% 6-69% 7-79% 8-89% 9-99% 1% Percent satisfied Percent satisfied: Top 4 points (>=) on 7-point satisfaction scale Air quality satisfaction: rd lowest category How satisfied are you with the air quality in your workspace (i.e. stuffy/stale air, cleanliness, odors)? 1, Number of respsonses 8, 6, 4, 2, 9% 1% 1% 2% 18% 19% 8% very dissatisfied very satisfied Overall: 68% of respondents satisfied Distribution of air quality satisfaction Thermal satisfaction, by building type 26% of buildings meet acceptability standard Mean Scores - Thermal Comfort Number of buildingsx % 1% 8% 19% 2% 25% 15% 9% 2% LEED (n=1), LEED mixed (n=1) mode compared (n=5) compared to CBE to CBE database database (n=257) (n=257) mixed mode median:.62 leed median:.42 db median: -.1-9% 1-19% 2-29% -9% 4-49% 5-5% 6-69% 7-79% 8-89% 9-99% 1% Percent satisfied Percent satisfied: Top 4 points ( ) on 7-point satisfaction scale - % 25% 5% 75% 1% Data for evolving green building design criteria Center for the Built Environment (CBE) Page 5

6 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Air quality satisfaction, by building type Green buildings and acoustic satisfaction Mean Scores - Air Quality LEED (n=1), LEED mixed (n=1) mode com (n=5) pared compared to CBE to database CBE database (n=257) (n=257) Mean Scores - Acoustic Quality LEED (n=1) compared to CBE database (n=257) mixed mode median: 1.95 leed m edian: 1.21 db m edian:.21 leed median: -.15 db median: % 25% 5% 75% 1% - % 25% 5% 75% 1% Green Building Confessions Green Building Confessions An office building in Virginia: Overall Building: High (+) Workplace: Low (-) Lighting: Very High (++) Air Quality: Very High (++) Thermal Comfort: Low (-) Acoustics: Very Low (--) Response Rate: 69% * (Compared to the CBE database of projects) Air Quality Higher satisfaction than average for all CBE surveys Thermal Comfort Significant variation among buildings Low cost-driven design decisions = low satisfaction rate Limited controls impacts satisfaction Overall Satisfaction - Air Quality HOK Buildings Compared to CBE Database - % 25% 5% 75% 1% Overall Satisfaction - Thermal Comfort HOK Buildings Compared to CBE Database - % 25% 5% 75% 1% Example 6: Field study research on air movement Window-ventilated open-plan office building CBE IEQ survey for background two seasons ~1 occupants/season (half of the building population) Repeated right now survey two week test period each season 8 occupants/season Total more than 2 surveys Ambient measurements air and globe temperatures, humidity, and air velocity at 8 workstations Continuously during both seasons Center for the Built Environment (CBE) Page 6

7 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Desktop indoor climate monitor (ICM) ICMs Shielded Dry Bulb Anemometer (air speed) Globe Temperature Monitoring station and voting box units, Fishman and Pimbert, 1978 ICM application will be described later.. Right now survey air movement questions Right now survey: air movement preference question want less % (n=1) want less 4% (n=41) no change 52% (n=54) want more 45% (n=468) no change 68% (n=699) want more 28% (n=288) Summer, N = 14 Winter, N = 128 Many more people wanted more air movement than less Thermal sensation and air movement preference Higher velocities--above the.2 m/s draft limit 1% of the measured velocity >.2 m/s, N=194 Center for the Built Environment (CBE) Page 7

8 Roomvent 27: 1 th International Conference on Helsinki, June 1-15, 27 Air movement preferences >.2 m/s Effect of temperature on perceived air quality no change 45% want less 5% want more 5% Overall Satisfaction - Air Quality BCC Compared to CBE Database acceptable air motion (55%) want more 71% no change 2% want less 6% unacceptable air motion (45%) summer winter Summer average indoor temperature 24.2ºC, average thermal sensation.4 Winter average indoor temperature 22.8ºC, average thermal sensation.1 - % 25% 5% 75% 1% Conclusion: future roles for assessment More surveying of occupant satisfaction (web) More simultaneous measurement of physical environment and occupant responses. With developments in wireless, this is becoming easier to do Use for building operation as well as research Examine standards and standard practice Humidity limits need detailed assessment in buildings: cause/effect links for perceived air quality, and health Control systems with ambient intelligence humans as informed and adaptive actuators Center for the Built Environment (CBE) Page 8

Assessment of Indoor Environments

Assessment of Indoor Environments Assessment of Indoor Environments Edward Arens University of California, Berkeley e-mail: earens@berkeley.edu I. INTRODUCTION The energy and environmental consequences of conditioning buildings are immense,

More information

Findings of Field Survey for Thermal Comfort and Ventilation in US Office Buildings

Findings of Field Survey for Thermal Comfort and Ventilation in US Office Buildings Findings of Field Survey for Thermal Comfort and Ventilation in US Office Buildings Liangcai Tan 1, Samir Moujaes, HDR Inc. University of Nevada Las Vegas SUMMARY This paper presents the measured data

More information

David and Lucile Packard Foundation

David and Lucile Packard Foundation David and Lucile Packard Foundation Occupant Survey Report Survey Dates: 4/17/2013 through 4/28/2013 Center for the Built Environment University of California, Berkeley 1.1 How to Use This Report This

More information

Optimizing Indoor Environments for Occupant Satisfaction. Presented by: Kelli Goldstone April 2016

Optimizing Indoor Environments for Occupant Satisfaction. Presented by: Kelli Goldstone April 2016 Optimizing Indoor Environments for Occupant Satisfaction Presented by: Kelli Goldstone April 2016 Outline Function of HVAC Thermal Comfort Air Distribution Radiant Heating / Cooling Case Study Function

More information

The energy benefits of View Dynamic Glass

The energy benefits of View Dynamic Glass Workplace demonstration Energy monitoring over a period of 12 months resulted in the commercial office room installed with View Dynamic Glass saving 39 percent of the total energy consumed compared to

More information

LEED TM Post-Occupancy Evaluation: Taking Responsibility for the Occupants

LEED TM Post-Occupancy Evaluation: Taking Responsibility for the Occupants LEED TM Post-Occupancy Evaluation: Taking Responsibility for the Occupants David Lehrer CBE Director of Communications Better Bricks, USGBC/CGBC Cascadia Chapter Portland, November 1 2006 Seattle, November

More information

Satisfying more while consuming less--

Satisfying more while consuming less-- Satisfying more while consuming less-- the promise of personal comfort systems Edward Arens Center for the Built Environment UC Berkeley Part 1. Center for the Built Environment (CBE) Building science

More information

Adaptive Learning Controls for demand-responsive electricity management

Adaptive Learning Controls for demand-responsive electricity management Adaptive Learning Controls for demand-responsive electricity management Therese Peffer Center for the Built Environment Architecture Department UC Berkeley DRETD TAC Meeting 21 Feb 2007 Adaptive Learning

More information

ADAPTIVE THERMAL COMFORT - AN EXTENDED APPROACH FOR CONDITIONED INDOOR ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS

ADAPTIVE THERMAL COMFORT - AN EXTENDED APPROACH FOR CONDITIONED INDOOR ENVIRONMENT USING COMPUTATIONAL FLUID DYNAMICS 16 th International Conference on Clean Energy (ICCE-2018) 9-11 May 2018, Famagusta, N. Cyprus ADAPTIVE THERMAL COMFORT - AN EXTENDED APPROACH FOR CONDITIONED INDOOR ENVIRONMENT USING COMPUTATIONAL FLUID

More information

Thermal Environment evaluation in commercial kitchens

Thermal Environment evaluation in commercial kitchens Downloaded from orbit.dtu.dk on: Nov 11, 2018 Thermal Environment evaluation in commercial kitchens Simone, Angela; Olesen, Bjarne W. Publication date: 2013 Link back to DTU Orbit Citation (APA): Simone,

More information

Satisfaction and self-estimated performance in relation to indoor environmental parameters and building features

Satisfaction and self-estimated performance in relation to indoor environmental parameters and building features Downloaded from orbit.dtu.dk on: Oct 12, 2018 Satisfaction and self-estimated performance in relation to indoor environmental parameters and building features Wargocki, Pawel; Frontczak, Monika Joanna;

More information

Performance-Risk Methodology for the Design of High-Performance Affordable Homes

Performance-Risk Methodology for the Design of High-Performance Affordable Homes April 3 rd, 2012 1 Performance-Risk Methodology for the Design of High-Performance Affordable Homes Building Enclosure Science & Technology Conference BEST3, Atlanta Rodrigo Mora, British Columbia Institute

More information

Thermal Comfort Research at the Center for the Built Environment

Thermal Comfort Research at the Center for the Built Environment Thermal Comfort Research at the Fred Bauman University of California, Berkeley May 2013 1 May 2013 Presentation outline 1. Review of Thermal Comfort 2. (CBE) a. Human Comfort and Indoor Environmental Quality

More information

An Experimental Study for the Evaluation of the Environmental Performance by the Application of the Automated Venetian Blind

An Experimental Study for the Evaluation of the Environmental Performance by the Application of the Automated Venetian Blind An Experimental Study for the Evaluation of the Environmental Performance by the Application of the Automated Venetian Blind Ji-Hyun Kim 1, Kyoung-Wn Yang 1, Young-Joon Park 1, Kyung-Hee Lee 2, Myoung-Souk

More information

through Early Stage Energy Modeling dl

through Early Stage Energy Modeling dl This document has been abridged and does not include the full PowerPoint presented at Build Boston. Build Boston 09 Session B35 Achieving Sustainable Design through Early Stage Energy Modeling dl November

More information

UC Berkeley Indoor Environmental Quality (IEQ)

UC Berkeley Indoor Environmental Quality (IEQ) UC Berkeley Indoor Environmental Quality (IEQ) Title Energy savings from extended air temperature setpoints and reductions in room air mixing Permalink https://escholarship.org/uc/item/28x9d7xj Authors

More information

Prediction of Thermal Comfort. mech14.weebly.com

Prediction of Thermal Comfort. mech14.weebly.com Prediction of Thermal Comfort Thermal Sensation Scale (Rohles & Nevins, 1974) Fanger s Thermal Comfort Model (1982) Steady state model, applicable for M 3 met and a large group of people Fanger s Thermal

More information

Indoor Thermal Environmental Control and Satisfaction: Advanced HVAC systems and occupant satisfaction and comfort

Indoor Thermal Environmental Control and Satisfaction: Advanced HVAC systems and occupant satisfaction and comfort Indoor Thermal Environmental Control and Satisfaction: Advanced HVAC systems and occupant satisfaction and comfort Fred Bauman Project Scientist Center for the Built Environment University of California

More information

THE LEADER IN PERFORMANCE INDOOR AIR QUALITY MEASUREMENTS

THE LEADER IN PERFORMANCE INDOOR AIR QUALITY MEASUREMENTS THE LEADER IN PERFORMANCE INDOOR AIR QUALITY MEASUREMENTS INDOOR AIR QUALITY INSTRUMENTS UNDERSTANDING, ACCELERATED BREATHE A LITTLE EASIER WITH TSI Indoor air quality is a growing concern. With the increasing

More information

SECTION DESIGN REQUIREMENTS BASIS OF DESIGN GENERAL INFORMATION

SECTION DESIGN REQUIREMENTS BASIS OF DESIGN GENERAL INFORMATION BASIS OF DESIGN GENERAL INFORMATION 1.1 During the Schematic Design phase, the Consultant shall develop a Basis of Design (BOD) Document. This document shall provide a comprehensive description of the

More information

Leluo Zhang 1, Murali Annavaram 1, Kyle Konis 1. Abstract. Introduction

Leluo Zhang 1, Murali Annavaram 1, Kyle Konis 1. Abstract. Introduction Occupant-Aware Energy Management: Simulated Energy Savings Achievable Using Learned Cooling Temperature Set-points Over a Range of Climates and Cooling System Designs Leluo Zhang 1, Murali Annavaram 1,

More information

Work Package 2: Performance of naturally ventilated buildings

Work Package 2: Performance of naturally ventilated buildings Work Package 2: Performance of naturally ventilated buildings Detailed Monitoring Report The architectural office of Malmö (SE1) Åke Blomsterberg, Charlotte Svensson J&W Consulting Engineers Building Physics,

More information

Going Deep on Plug Loads: Strategies from the Bullitt Center 12 th Annual Energy/Facilities Connections (EFC) Conference 4 May 2016 Leavenworth, WA

Going Deep on Plug Loads: Strategies from the Bullitt Center 12 th Annual Energy/Facilities Connections (EFC) Conference 4 May 2016 Leavenworth, WA Going Deep on Plug Loads: Strategies from the Bullitt Center 12 th Annual Energy/Facilities Connections (EFC) Conference 4 May 2016 Leavenworth, WA Christopher Meek, AIA, IESNA Associate Professor + Director

More information

Ventilated facade design in hot and humid climate. Ventilated facade design in hot and humid climate

Ventilated facade design in hot and humid climate. Ventilated facade design in hot and humid climate Ventilated facade design in hot and humid climate Matthias Haase Dr. Alex Amato Department of Architecture Faculty of Architecture The Hong Kong University Pokfulam Road, HK, China September 2006 Ventilated

More information

Designing Air-Distribution Systems To Maximize Comfort

Designing Air-Distribution Systems To Maximize Comfort Designing Air-Distribution Systems To Maximize Comfort By David A. John, P.E., Member ASHRAE An air-distribution system that provides occupant thermal comfort can be a complicated system to predict and

More information

BREATHE A LITTLE EASIER WITH TSI

BREATHE A LITTLE EASIER WITH TSI BREATHE A LITTLE EASIER WITH TSI PROFESSIONAL MEASUREMENT SOLUTIONS THAT HELP YOU SAVE ENERGY, INCREASE OCCUPANT COMFORT AND ASSURE A HEALTHY ENVIRONMENT Indoor air quality (IAQ) is a growing concern.

More information

Post-occupancy Evaluation and Thermal Comfort: State of the Art and New Approaches

Post-occupancy Evaluation and Thermal Comfort: State of the Art and New Approaches First published in: 7 Post-occupancy Evaluation and Thermal Comfort: State of the Art and New Approaches Elke Gossauer and Andreas Wagner Abstract Building occupants are a valuable source of information

More information

Introduction and utilizing of natural energy in Net ZEB practice

Introduction and utilizing of natural energy in Net ZEB practice Introduction and utilizing of natural energy in Net ZEB practice Takenaka Corporation Higashi-kanto Branch Office 2018.10.5 Renewable Energy Institute / Green Building Symposium Takenaka Corporation Hiroaki

More information

A Field Study of the Thermal Environment in Residential Buildings in Harbin

A Field Study of the Thermal Environment in Residential Buildings in Harbin KC-03-13-4 (4664) A Field Study of the Thermal Environment in Residential Buildings in Harbin Zhao-Jun Wang, Ph.D. Gang Wang Le-Ming Lian ABSTRACT This paper presents the main findings of Project HIT.2000.25

More information

Thermal Environment evaluation in Commercial kitchens: Procedure of data collection

Thermal Environment evaluation in Commercial kitchens: Procedure of data collection Thermal Environment evaluation in Commercial kitchens: Procedure of data collection Angela Simone *, Bjarne W. Olesen ICIEE-BYG, Technical University of Denmark, Kgs. Lyngby, Denmark * email: asi@byg.dtu.dk

More information

Design Charrette. New York State Energy Research and Development Authority 17 Columbia Circle Albany, NY NYSERDA

Design Charrette. New York State Energy Research and Development Authority 17 Columbia Circle Albany, NY NYSERDA Design Charrette New York State Energy Research and Development Authority 17 Columbia Circle Albany, NY 12203 1-866-NYSERDA Carlos Dachary, PE, LEED-AP Sustainable Performance Consulting September 10,

More information

Holistic Design Approach For Energy Efficiency ASHRAE TECHNOLOGY AWARD CASE STUDIES

Holistic Design Approach For Energy Efficiency ASHRAE TECHNOLOGY AWARD CASE STUDIES ASHRAE TECHNOLOGY AWARD CASE STUDIES This article was published in ASHRAE Journal, June 2018. Copyright 2018 ASHRAE. Posted at www.ashrae.org. This article may not be copied and/or distributed electronically

More information

BUILDING DESIGN FOR HOT AND HUMID CLIMATES IMPLICATIONS ON THERMAL COMFORT AND ENERGY EFFICIENCY. Dr Mirek Piechowski 1, Adrian Rowe 1

BUILDING DESIGN FOR HOT AND HUMID CLIMATES IMPLICATIONS ON THERMAL COMFORT AND ENERGY EFFICIENCY. Dr Mirek Piechowski 1, Adrian Rowe 1 BUILDING DESIGN FOR HOT AND HUMID CLIMATES IMPLICATIONS ON THERMAL COMFORT AND ENERGY EFFICIENCY Dr Mirek Piechowski 1, Adrian Rowe 1 Meinhardt Building Science Group, Meinhardt Australia 1 Level 12, 501

More information

Daylight has been a primary source of lighting in buildings. Daylighting improve indoor environmental quality and visual comfort. Moreover, it reduces

Daylight has been a primary source of lighting in buildings. Daylighting improve indoor environmental quality and visual comfort. Moreover, it reduces Effect of Window on Building Energy Performance and Indoor Environmental Quality T. Aker 1, C. Deniz 2, A. Tabancacı 3 and M.S. Mert 4 1 Energy Institute, Istanbul Technical University, Istanbul, Turkey,

More information

What occupants really think about comfort in the buildings they work in, and why it matters

What occupants really think about comfort in the buildings they work in, and why it matters Turn off the AC! What occupants really think about comfort in the buildings they work in, and why it matters John Goins/Mithra Moezzi Center for the Built Environment/Portland State University BECC Conference

More information

Findings through Nov. 2016

Findings through Nov. 2016 BUILDING ENERGY SAVING ORDINANCE (BESO) DECEMBER 7, 2016 Findings through Nov. 2016 BESO Basics Update to RECO/CECO requiring tailored energy assessment at time of sale or periodically, based on building

More information

Energy Management in Existing Buildings

Energy Management in Existing Buildings Energy Management in Existing Buildings Davor Novosel Chief Technology Officer National Energy Management Institute Committee Overview Why manage energy? Why existing buildings? How big is energy savings

More information

REAL-LIFE OPERATION OF SOLUS SYSTEM: A FOCUS ON THERMAL COMFORT 11 A P R I L D A N VA K D A G E N

REAL-LIFE OPERATION OF SOLUS SYSTEM: A FOCUS ON THERMAL COMFORT 11 A P R I L D A N VA K D A G E N REAL-LIFE OPERATION OF SOLUS SYSTEM: A FOCUS ON THERMAL COMFORT 11 A P R I L 2 0 1 8 D A N VA K D A G E N A L E S S A N D R O M A C C A R I N I, P O S T D O C Agenda Concept behind the SOLUS system Energy

More information

Strategies for energy efficiency improvement in residential and office buildings: their role at building and country scale

Strategies for energy efficiency improvement in residential and office buildings: their role at building and country scale The Future Role of Energy Storage in South Eastern Europe Enlargement and Integration Action Workshop Strategies for energy efficiency improvement in residential and office buildings: their role at building

More information

Next Generation District Heating

Next Generation District Heating Next Generation District Heating FVB: Ulrika Ottosson, Heimo Zinko Lund University: Janusz Wollerstrand, Patrick Lauenburg, Marek Brand (DTU) a project The Swedish District Heating Association s R&D programme

More information

Work Package 2: Performance of naturally ventilated buildings

Work Package 2: Performance of naturally ventilated buildings Work Package 2: Performance of naturally ventilated buildings Detailed Monitoring Report The Pfizer Building (NO2) Peter Blom The Norwegian Building Research Institute Technical division Table of contents

More information

Holistic Design Approach For Energy Efficiency ASHRAE TECHNOLOGY AWARD CASE STUDIES

Holistic Design Approach For Energy Efficiency ASHRAE TECHNOLOGY AWARD CASE STUDIES 2018 ASHRAE TECHNOLOGY AWARD CASE STUDIES Holistic Design Approach For Energy Efficiency Using LED and fluorescent lighting, the lighting design was modeled to maximize lighting effect while reducing energy

More information

The correct citation for this paper is:

The correct citation for this paper is: This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (http://www.hvac.okstate.edu) The correct citation for this paper is: Webster,

More information

COMPARATIVE SUMMER THERMAL AND COOLING LOAD PERFORMANCE OF NATURAL VENTILATION OF CAVITY ROOF UNDER THREE DIFFERENT CLIMATE ZONES

COMPARATIVE SUMMER THERMAL AND COOLING LOAD PERFORMANCE OF NATURAL VENTILATION OF CAVITY ROOF UNDER THREE DIFFERENT CLIMATE ZONES COMPARATIVE SUMMER THERMAL AND COOLING LOAD PERFORMANCE OF NATURAL VENTILATION OF CAVITY ROOF UNDER THREE DIFFERENT CLIMATE ZONES Lusi Susanti 1, Hiroshi Matsumoto 2, and Hiroshi Homma 2 1 Department of

More information

Evaluation methods for indoor environmental quality assessment according to EN15251

Evaluation methods for indoor environmental quality assessment according to EN15251 Summary of this article was published in the REHVA European HVAC Journal Vol 49, Issue 4 (August), 2012, pages 14-19, available at http://www.rehva.eu/en/rehva-european-hvac-journal. Evaluation methods

More information

Perception of Thermal Comfort for Naturally Ventilated High School Classrooms in San Rafael, CA

Perception of Thermal Comfort for Naturally Ventilated High School Classrooms in San Rafael, CA Perception of Thermal Comfort for Naturally Ventilated High School Classrooms in San Rafael, CA GWENEDD MURRAY 1 1 Architectural Association, Inc., London, United Kingdom ABSTRACT: The primary intention

More information

FHealthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland

FHealthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland FHealthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland Paper ID: 0058 ISBN: 978-83-7947-232-1 Effectiveness of operable windows in office environments Atze Boerstra 1,2*, Marcel Loomans 2, Jan Hensen

More information

User Interactions with Environmental Control Systems in Buildings

User Interactions with Environmental Control Systems in Buildings User Interactions with Environmental Control Systems in Buildings Ardeshir Mahdavi, Elham Kabir, Abdolazim Mohammadi, Lyudmila Lambeva, Claus Pröglhöf Department of Building Physics and Building Ecology

More information

ENERGY EFFICIENCY IN BUILDINGS AND COMMUNITIES

ENERGY EFFICIENCY IN BUILDINGS AND COMMUNITIES ENERGY EFFICIENCY IN BUILDINGS AND COMMUNITIES Stefano Paolo Corgnati Department of Energy Politecnico di Torino E-mail: stefano.corgnati@polito.it I N T E R A C T I O N S B E T W E E N U S E R S A N D

More information

Information paper 17. Prepared by: David Clark. book:

Information paper 17. Prepared by: David Clark. book: Information paper 17 Thermal comfort standards Prepared by: David Clark A paper referenced in the book: Cundall Johnston & Partners LLP. 2013 Issue 1.0: 29 July 2013 This information paper is one of a

More information

IOT SENSOR INTEGRATION IN SMART BUILDINGS FOR MONITORING & CONTROL

IOT SENSOR INTEGRATION IN SMART BUILDINGS FOR MONITORING & CONTROL IOT SENSOR INTEGRATION IN SMART BUILDINGS FOR MONITORING & CONTROL Invited Lecture Professor Saifur Rahman Director, Virginia Tech Advanced Research Inst., USA President, IEEE Power & Energy Society National

More information

Urban Greening and the UHI: Seasonal Trade-offs in Heating and Cooling Energy Consumption in Manchester, UK

Urban Greening and the UHI: Seasonal Trade-offs in Heating and Cooling Energy Consumption in Manchester, UK Urban Greening and the UHI: Seasonal Trade-offs in Heating and Cooling Energy Consumption in Manchester, UK T H E R E S E A R C H E R S C y n t h i a S k e l h o r n PhD Physical Geography Post-Doctoral

More information

HVAC INTEGRATED CONTROL FOR ENERGY SAVING AND COMFORT ENHANCEMENT vahid Vakiloroaya

HVAC INTEGRATED CONTROL FOR ENERGY SAVING AND COMFORT ENHANCEMENT vahid Vakiloroaya HVAC INTEGRATED CONTROL FOR ENERGY SAVING AND COMFORT ENHANCEMENT vahid Vakiloroaya (vahid.vakiloroaya@engineer.com) ABSTRACT: The overall attainable reduction in energy consumption and enhancement of

More information

Mind the Gaps: Post-Occupancy Discoveries from Design to Operation

Mind the Gaps: Post-Occupancy Discoveries from Design to Operation Mind the Gaps: Post-Occupancy Discoveries from Design to Operation March 09, 2017 BuildingEnergy Boston Patrick Murphy, PE, LEED AP BD+C Chuck Stellberger, PE, LEED AP BD+C AIA Continuing Education Please

More information

How We Obtained LEED Certification pertaining to the Indoor Environmental Quality Category. Ron Fields, CAFS, NCT General Dynamics C4 Systems

How We Obtained LEED Certification pertaining to the Indoor Environmental Quality Category. Ron Fields, CAFS, NCT General Dynamics C4 Systems How We Obtained LEED Certification pertaining to the Indoor Environmental Quality Category Ron Fields, CAFS, NCT General Dynamics C4 Systems Outline What is LEED EB? GD LEED Costs and savings IEQ Prerequisites

More information

State Of The Art Office Building & Campus For Maharashtra Energy Development Agency(MEDA) At AUNDH, PUNE

State Of The Art Office Building & Campus For Maharashtra Energy Development Agency(MEDA) At AUNDH, PUNE State Of The Art Office Building & Campus For Maharashtra Energy Development Agency(MEDA) At AUNDH, PUNE Architectural Design Basis: 2 o The sole motive and mission of MEDA is to Promote Energy Conservation,

More information

The Leader in Performance Indoor Air Quality Measurements

The Leader in Performance Indoor Air Quality Measurements The Leader in Performance Indoor Air Quality Measurements ENERGY AND COMFORT TRUST. SCIENCE. INNOVATION. Breathe a Little Easier with TSI Indoor air quality is a growing concern. With the increasing amount

More information

The Leader in Performance Indoor Air Quality Measurements

The Leader in Performance Indoor Air Quality Measurements The Leader in Performance Indoor Air Quality Measurements ENERGY AND COMFORT TRUST. SCIENCE. INNOVATION. Breathe a Little Easier with TSI Indoor air quality is a growing concern. With the increasing amount

More information

COST - EFFECTIVE DESIGN FOR AIR-CONDITIONED OFFICE SPACE : TRANSPORT CORPORATION OF INDIA LTD. ASHOK B. LALL ARCHITECTS, NEW DELHI

COST - EFFECTIVE DESIGN FOR AIR-CONDITIONED OFFICE SPACE : TRANSPORT CORPORATION OF INDIA LTD. ASHOK B. LALL ARCHITECTS, NEW DELHI COST - EFFECTIVE DESIGN FOR AIR-CONDITIONED OFFICE SPACE : TRANSPORT CORPORATION OF INDIA LTD. ASHOK B. LALL ARCHITECTS, NEW DELHI TCI HOUSE is a modern office building with a high level of environmental

More information

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title A technical framework to describe occupant behavior for building energy simulations Permalink https://escholarship.org/uc/item/4t11z18h

More information

REAL-TIME CONTROL OF OCCUPANTS THERMAL COMFORT IN BUILDINGS. Galway, Ireland

REAL-TIME CONTROL OF OCCUPANTS THERMAL COMFORT IN BUILDINGS. Galway, Ireland REAL-TIME CONTROL OF OCCUPANTS THERMAL COMFORT IN BUILDINGS Magdalena Hajdukiewicz 1,2,3, Padraig O Connor 1, Colin O Neill 1, Daniel Coakley 1,2,3, Marcus M. Keane 1,2,3, Eoghan Clifford 1,2,3 1 Department

More information

Assessments of indoor environmental quality on occupant satisfaction and physical parameters in office buildings

Assessments of indoor environmental quality on occupant satisfaction and physical parameters in office buildings Assessments of indoor environmental quality on occupant satisfaction and physical parameters in office buildings Quan Jin 1,*, Holger Wallbaum 1, Thomas Leiblein 2, Thomas Hofmann 2, Marcel Janser 2, Lukas

More information

Using Prometheus weather files. Andrew Cripps Sustainable Development Group AECOM

Using Prometheus weather files. Andrew Cripps Sustainable Development Group AECOM Using Prometheus weather files Andrew Cripps Sustainable Development Group AECOM Contents AECOM SDG Our work on Climate Change Adaptation Modelling approach and weather data summary Wellcome Trust Building

More information

Report On Task 57, Subtask B1: Development of Accelerated Ageing Tests for Evacuated Tube Collectors

Report On Task 57, Subtask B1: Development of Accelerated Ageing Tests for Evacuated Tube Collectors Development of Accelerated Ageing Tests for Evacuated Tube Collectors 2018.11.30 Content 1 Ageing Test under Exposure Conditions... 1 1.1 Ageing process of ETC... 1 1.2 Specification for tested solar collector...

More information

UC Berkeley Indoor Environmental Quality (IEQ)

UC Berkeley Indoor Environmental Quality (IEQ) UC Berkeley Indoor Environmental Quality (IEQ) Title Percentage of commercial buildings showing at least 80% occupant satisfied with their thermal comfort Permalink https://escholarship.org/uc/item/89m0z34x

More information

Available online at ScienceDirect. Energy Procedia 78 (2015 )

Available online at   ScienceDirect. Energy Procedia 78 (2015 ) Available online at www.sciencedirect.com ScienceDirect Energy Procedia 78 (2015 ) 2857 2862 6th International Building Physics Conference, IBPC 2015 Optimized Blind Control Method to minimize Heating,

More information

681: Environmentally Responsive Architecture; Passive Design for School in Southern India

681: Environmentally Responsive Architecture; Passive Design for School in Southern India 681: Environmentally Responsive Architecture; Passive Design for School in Southern India Varun Kohli* Architectural Association School of Architecture, London, UK * varun.kohli@som.com Abstract This paper

More information

SKILLS INVENTORY FOR BUILDING OPERATORS

SKILLS INVENTORY FOR BUILDING OPERATORS SKILLS INVENTORY FOR BUILDING OPERATORS Building operations is a dynamic, evolving profession. There are significant changes with regards to new skills, behaviors, and knowledge. The building operator

More information

Thermal comfort evaluation of natural ventilation mode: case study of a high-rise residential building

Thermal comfort evaluation of natural ventilation mode: case study of a high-rise residential building J. Zuo, L. Daniel, V. Soebarto (eds.), Fifty years later: Revisiting the role of architectural science in design and practice: 50 th International Conference of the Architectural Science Association 2016,

More information

ENERGY EFFICIENT RETROFIT OF A HIGH-RISE MULTIFAMILY BUILDING

ENERGY EFFICIENT RETROFIT OF A HIGH-RISE MULTIFAMILY BUILDING ENERGY EFFICIENT RETROFIT OF A HIGH-RISE MULTIFAMILY BUILDING Brittany Hanam 1, Lorne Ricketts 2, Andrew Pape-Salmon 3 ABSTRACT The National Institute of Building Sciences estimates that over 70% of the

More information

Energy and indoor temperature consequences of adaptive thermal comfort standards

Energy and indoor temperature consequences of adaptive thermal comfort standards Energy and indoor temperature consequences of adaptive thermal comfort standards L. Centnerova and J.L.M. Hensen Czech Technical University in Prague, Czech Republic (lada@tzb.fsv.cvut.cz) Technische Universiteit

More information

OPPORTUNITIES TO SAVE ENERGY AND IMPROVE COMFORT BY USING WIRELESS SENSOR NETWORKS IN BUILDINGS

OPPORTUNITIES TO SAVE ENERGY AND IMPROVE COMFORT BY USING WIRELESS SENSOR NETWORKS IN BUILDINGS OPPORTUNITIES TO SAVE ENERGY AND IMPROVE COMFORT BY USING WIRELESS SENSOR NETWORKS IN BUILDINGS Danni Wang Graduate Student Edward Arens Director Cliff Federspiel Research Specialist Center for Environmental

More information

Verified net Zero Energy Building with air source heat pumps for SME

Verified net Zero Energy Building with air source heat pumps for SME Verified net Zero Energy Building with air source heat pumps for SME Field measurements were conducted on a net zero energy building designed for small to medium enterprises (SMEs). Energy flow and comfort

More information

The Call Center Balanced Scorecard

The Call Center Balanced Scorecard The Call Center Balanced Scorecard Your Overall Measure of Call Center Performance! MetricNet Best Practices Series Some Common Call Center KPIs Cost Cost per Contact Cost per Minute of Handle Time Quality

More information

An Assessment of Thermal Comfort in Hot and Dry Season (A Case Study of 4 Theaters at Bayero University Kano)

An Assessment of Thermal Comfort in Hot and Dry Season (A Case Study of 4 Theaters at Bayero University Kano) International Journal of Multidisciplinary and Current Research Research Article ISSN: - Available at: http://ijmcr.com An Assessment of Thermal Comfort in Hot and Dry Season (A Case Study of Theaters

More information

Nearly Zero Energy Building in Lecco Modern technological building compared to an ancient Villa

Nearly Zero Energy Building in Lecco Modern technological building compared to an ancient Villa Nearly Zero Energy Building in Lecco Modern technological building compared to an ancient Villa Matteo BRASCA *, Oscar Luigi PAGANI **, Kanza RAUF*** * partner - AIACE S.r.l. società di ingegneria, contract

More information

BUILDING PERFORMANCE MEASUREMENT PROTOCOLS and THEIR APPLICATION ASHRAE Triangle Chapter September 10, 2014 Raleigh, NC

BUILDING PERFORMANCE MEASUREMENT PROTOCOLS and THEIR APPLICATION ASHRAE Triangle Chapter September 10, 2014 Raleigh, NC BUILDING PERFORMANCE MEASUREMENT PROTOCOLS and THEIR APPLICATION ASHRAE Triangle Chapter September 10, 2014 Raleigh, NC Bruce D. Hunn, Ph.D. Fellow, ASHRAE Presentation Outline Why we need protocols Characteristics

More information

ScienceDirect. Simulation based mixed mode building design

ScienceDirect. Simulation based mixed mode building design Available online at www.sciencedirect.com ScienceDirect Energy Procedia 00 (2016) 000 000 www.elsevier.com/locate/procedia 5th International Conference on Advances in Energy Research, ICAER 2015, 15-17

More information

Energy Harvesting Technologies for Buildings. Cory Vanderpool Business Development Director, North America

Energy Harvesting Technologies for Buildings. Cory Vanderpool Business Development Director, North America Energy Harvesting Technologies for Buildings Cory Vanderpool Business Development Director, North America The Work of EnOcean Alliance Non profit trade association of over 200 member companies dedicated

More information

Low Cost Building Automation System for Small- and Medium- Sized Commercial Buildings

Low Cost Building Automation System for Small- and Medium- Sized Commercial Buildings Low Cost Building Automation System for Small- and Medium- Sized Commercial Buildings Srinivas Katipamula, Ph.D. Staff Scientist, Pacific Northwest National Laboratory Other TAG Members: Irfan Rehmanji

More information

FIELD MEASUREMENT OF A RESIDENTIAL FLOOR COOLING SYSTEM AND EVALUATION OF HUMAN THERMAL COMFORT

FIELD MEASUREMENT OF A RESIDENTIAL FLOOR COOLING SYSTEM AND EVALUATION OF HUMAN THERMAL COMFORT Engineering Review, Vol. 35, Issue 1, 69-79, 015. 69 FIELD MEASUREMENT OF A RESIDENTIAL FLOOR COOLING SYSTEM AND EVALUATION OF HUMAN THERMAL COMFORT X. M. Sui 1* X. Zhang 1 School of Environmental Science

More information

Chapter 8: Indoor Environmental Quality

Chapter 8: Indoor Environmental Quality Chapter 8: Indoor Environmental Quality 1 Learning Objectives Minimum indoor air quality performance Environmental tobacco smoke control Enhanced indoor air quality strategies Low-emitting materials Construction

More information

Simulation based façade control implemented as a responsive building element

Simulation based façade control implemented as a responsive building element Simulation based façade control implemented as a responsive building element Axel Seerig, Carina Sagerschnig Gruner AG, Basel, Switzerland Smart and Efficient Energy Council (SEEC 2009) 1 Trento / Italy,

More information

Continuous Commissioning Leading Energy Project Process - An Industry Approach

Continuous Commissioning Leading Energy Project Process - An Industry Approach Continuous Commissioning Leading Energy Project Process - An Industry Approach Mingsheng Liu, Ph.D., P.E. Energy Systems Laboratory, University of Nebraska Jinrong Wang, P.E., Ken Hansen, P.E. Omaha Public

More information

ADAPTIVE LOW-E DOUBLE GLAZING WINDOW

ADAPTIVE LOW-E DOUBLE GLAZING WINDOW ADAPTIVE LOW-E DOUBLE GLAZING WINDOW Hussein Abaza 1 and Ihab Sa ad 2 ABSTRACT This paper investigates the thermal performance of a new adaptive window which is seasonally reversible. The new window is

More information

INVESTIGATION OF INDOOR ENVIRONMENTAL QUALITY AND PRODUCTIVITY IN MONITORED OFFICES IN SLOVAKIA

INVESTIGATION OF INDOOR ENVIRONMENTAL QUALITY AND PRODUCTIVITY IN MONITORED OFFICES IN SLOVAKIA Proceedings of the 14 th International Conference on Environmental Science and Technology Rhodes, Greece, 3-5 September 2015 INVESTIGATION OF INDOOR ENVIRONMENTAL QUALITY AND PRODUCTIVITY IN MONITORED

More information

95% U.S. Commercial Properties are less than 5,000 square meters. Vision/Problem Bringing custom energy control to small & medium commercial buildings

95% U.S. Commercial Properties are less than 5,000 square meters. Vision/Problem Bringing custom energy control to small & medium commercial buildings IOT SENSOR INTEGRATION IN SMART BUILDINGS FOR MONITORING & CONTROL Invited Lecture Professor Saifur Rahman Director, Virginia Tech Advanced Research Inst., USA President, IEEE Power & Energy Society ENIT,

More information

You Can t Afford Discomfort. Dan Int-Hout Chief Engineer, Krueger Richardson, Texas

You Can t Afford Discomfort. Dan Int-Hout Chief Engineer, Krueger Richardson, Texas You Can t Afford Discomfort Dan Int-Hout Chief Engineer, Krueger Richardson, Texas Where We Are Today: So You Want To Save Money? Things to consider: 1. First Cost 2. Energy cost 3. Occupant Salary costs

More information

VELUX A/S, Daylight Energy and Indoor Climate, Ådalsvej 99, 2970 Hørsholm, Denmark *Corresponding author:

VELUX A/S, Daylight Energy and Indoor Climate, Ådalsvej 99, 2970 Hørsholm, Denmark *Corresponding author: VENTILATIVE COOLING OF RESIDENTIAL BUILDINGS: STRATEGIES, MEASUREMENT RESULTS AND LESSONS-LEARNED FROM THREE ACTIVE HOUSES IN AUSTRIA, GERMANY AND DENMARK Peter Foldbjerg *, Thorbjørn Asmussen VELUX A/S,

More information

UC Berkeley Indoor Environmental Quality (IEQ)

UC Berkeley Indoor Environmental Quality (IEQ) UC Berkeley Indoor Environmental Quality (IEQ) Title Indoor environmental quality surveys. A brief literature review. Permalink https://escholarship.org/uc/item/0wb1v0ss Authors Peretti, Clara Schiavon,

More information

Ventilation and Cooling

Ventilation and Cooling Natural vs. mechanical Ventilation and Cooling Weighing the benefits and the drawbacks of each type of ventilation system helps the building occupants, owners, and the technicians integrating and monitoring

More information

Business Productivity from Better Indoor Environment Quality. Dr Vyt Garnys

Business Productivity from Better Indoor Environment Quality. Dr Vyt Garnys Business Productivity from Better Indoor Environment Quality Dr Vyt Garnys www.cetec.com.au About Us Comprehensive scientific consulting and laboratory services since 1987 Leading provider of multidiscipline

More information

An analysis of user behaviour and indoor climate in an office building in Kosovo

An analysis of user behaviour and indoor climate in an office building in Kosovo Available online at www.pelagiaresearchlibrary.com Advances in Applied Science Research, 2011, 2 (5):48-63 ISSN: 0976-8610 CODEN (USA): AASRFC An analysis of user behaviour and indoor climate in an office

More information

Attaining Thermal Comfort in. Buildings with Predominantly. Glazed Facades. presented to: ANSYS Boston Regional Conference

Attaining Thermal Comfort in. Buildings with Predominantly. Glazed Facades. presented to: ANSYS Boston Regional Conference Attaining Thermal Comfort in Buildings with Predominantly Glazed Facades presented to: ANSYS Boston Regional Conference September 14, 2011 Case Study Background High floor to ceiling windows Large skylight

More information

White Paper. HVLS Fans and Energy Savings. Dubai Case Study. Featuring Altra-Air Fans with WhalePower Technology from Envira-North Systems

White Paper. HVLS Fans and Energy Savings. Dubai Case Study. Featuring Altra-Air Fans with WhalePower Technology from Envira-North Systems HVLS Fans and Energy Savings Dubai Case Study White Paper This paper is designed to provide insight into a case study of a manufacturing facility in Dubai, UAE. At the 2,500m² air conditioned site, one

More information

Assessment of Climate Change Robustness of a Deep Energy Retrofit Design of an Existing Day Care Centre

Assessment of Climate Change Robustness of a Deep Energy Retrofit Design of an Existing Day Care Centre Assessment of Climate Change Robustness of a Deep Energy Retrofit Design of an Existing Day Care Centre Amin Moazami, Salvatore Carlucci, Stig Geving Faculty of Engineering Science and Technology Department

More information

SUSTAINABILITY STRATEGIES IN BUILDING DESIGN

SUSTAINABILITY STRATEGIES IN BUILDING DESIGN SUSTAINABILITY STRATEGIES IN BUILDING DESIGN CASE STUDIES GRIHA Summit: Mar 12, 2015 SUSTAINABILITY LOOK BACK TO MOVE AHEAD 1 Annual Window Direction Analysis Seasonal Window Direction Analysis 23-03-2015

More information

Procedia - Social and Behavioral Sciences 216 ( 2016 )

Procedia - Social and Behavioral Sciences 216 ( 2016 ) Available online at www.sciencedirect.com ScienceDirect Procedia - Social and Behavioral Sciences 216 ( 2016 ) 655 661 Urban Planning and Architecture Design for Sustainable Development, UPADSD 14-16 October

More information

Comfort models as applied to buildings

Comfort models as applied to buildings R.H. Crawford and A. Stephan (eds.), Living and Learning: Research for a Better Built Environment: 49 th International Conference of the Architectural Science Association 2015, pp.1087 1096. 2015, The

More information

Greening Buildings at the Dallas/Fort Worth International Airport. Sustainable Communities Conference Dallas, TX. March 10, 2009

Greening Buildings at the Dallas/Fort Worth International Airport. Sustainable Communities Conference Dallas, TX. March 10, 2009 Greening Buildings at the Dallas/Fort Worth International Airport Sustainable Communities Conference Dallas, TX March 10, 2009 Agenda Energy Efficiency in New Construction Energy Efficiency in Retrofits

More information