Natural Refrigerants: Future-proof Solutions for Today. eurammon End-Users
|
|
- Sara Harvey
- 6 years ago
- Views:
Transcription
1
2 Natural Refrigerants: Future-proof Solutions for Today eurammon End-Users
3 Design and Construction of a Small Ammonia Heat Pump by Behzad Abolhassani Monfared
4 Introduction (1/2) Water-to-water heat pump (ground source) Low charge of ammonia 7 kw heating capacity at -5 C and +40 C evaporation and condensation temperatures Both tap water heating and space heating Enough for a single-family house in central Sweden Compact design Betriebswirtschaft
5 Introduction (2/2) Between 1994 and 2008, more than heat pumps were sold in Sweden Share of small heat pumps installed in single-family houses is much larger than other types of heat pumps In Swedish market, commercially built heat pumps for single-family houses have 5 kw to 10 kw heating capacity About 90% of annual required heating and 60% of required heating power in the coldest days of heating season are covered Common refrigerants for ground source heat pumps in Sweden are R407C, R404A, R134a, and R290 (propane)
6 Environmental Impacts (1/2) R407C R404A R134a R290 R717 ODP < < < GWP (100-yr) <1 Total Equivalent Warming Impact (TEWI) is even more important TEWI depends on GWP, running hours, leakage rate, refrigerant charge, energy consumption, (kg CO 2 /kwh), (kgco 2 /kg ref), etc. (kg CO 2 /kg ref) of production of ammonia is lower than that of synthetic refrigerants An important factor is the efficiency of the system
7 Environmental Impacts (2/2) Engineering Equation Solver (EES) model t 1 =40 C, t 2 =-5 C, SH= 5 K, SC=5 K, η motor = 80% Volumetric efficiency Volumetric to isentropic efficiency t 18 k 2k ηs = k1.( 1+ ks ). e 100 R407C R404A R134a R290 R717 COP P 1 (bar) P 2 (bar) t 1k ( C) ηs η = (1 + k To produce sanitary hot water, higher condensation pressure is needed for the refrigerants other than ammonia, which leads to lower COP 1 values than the values in the above table for them k e t 2 P1 P 2 18 ). e 100 t ( a t 1 2k b)
8 Setup installed in a house
9 Setup tested in the laboratory
10 EES software model Basis for choosing the components (needed capacity) Pipes on refrigerant side Heat exchangers and needed flow rate through them The pump, flow meters, and 3-way valves on water side Assumptions t 1 =40 C, t 2 =-5 C, SH= 5 K, SC=5 K, Q 2 = 5.4 kw η s Results t2k 18 = k1.( 1+ ks ). e 100 Q 1 = 6.9 kw (Q cond =5.5 kw, Q desup =1.4 kw), COP 1k = 4.6 m r = kg/s, P 1 = 15.6 bar, P 2 = 3.55 bar k 2 P1 P 2 ηs η k = (1 + k e t 18 ). e 100 t ( a t 1 2k b)
11 Main components (1/4) Open-type reciprocating HKT- GOELDNER compressor, O 12 3 DK100 For t 1 =40 C, t 2 =-5 to 0 C, n=1450 rpm Q 2 6 kw
12 Main components (2/4) Permanent magnet motor (TG drives) The rotation speed is controlled by an inverter (OMRON)
13 Main components (3/4) Desuperheater and condenser Fusion-bonded, 100% stainless steel plate heat exchangers (AlfaNova) Evaporator Minichannel aluminum heat exchanger
14 Main components (4/4) Electronic expansion valve (Carel) Standalone driver (Carel) Brine pump (Grundfos) High efficiency Stepless speed control Circulating the brine, ethanol 25% wt, through the evaporator and borehole
15 3!D model Scaled 3-D drawing in AutoCAD Plan to place the components in a limited space Grundfos WebCAPS. Grundfos. [Online] WILO [Online]
16 Constructing the heat pump According to 3-D model AluFlex 40mm 40mm bars Calibration or verification Leakage Insulation (ARMAFLEX)
17
18 Data acquisition and processing
19 Agilent VEE program
20 Test conditions Compressor speed 1500 rpm and 800 rpm Condensation temperature 40 C Evaporation temperature -13 C to +5 C Water leaving desuperheater 60 C Brine temprature change 3K
21 Results (Q 1 and Q 2 )
22 Results (E elm, E k, E pump )
23 Results (Q desup /Q cond )
24 Discharge temperature Betriebswirtschaft
25 Results (COP) Betriebswirtschaft
26 Results (η k and η tot ) Betriebswirtschaft
27 Conclusions A small ammonia heat pump with desirable performance has been built and tested in a range of evaporation temperatures at two compressor speeds. The heating capacity and the compact design of the heat pump make it suitable for space heating and tap water heating of single-family houses. For the safety reasons in domestic applications, through compact design and using minichannel heat exchanger as evaporator, the heat pump works with low amount of refrigerant. Betriebswirtschaft
28 Future work Redesigning the evaporator Measuring power after inverter and motor Reducing the charge more Installing the heat pump in a house Betriebswirtschaft
29 References (1/2) Ammonia in low capacity refrigeration and heat pump systems. Palm, Björn , s.l. : Elsevier Ltd and IIR, 2008, International Journal of Refrigeration, Vol. 31, pp doi: /j.ijrefrig Design and test of a domestic heat pump with ammonia as refrigerant. Monfared, B A and Palm B Proceedings of the 4th IIR conference on Ammonia Refrigeration Technology, Ohrid. Fernando, Primal Experimental Investigation of Refrigerant Charge Minimisation of a Small Capacity Heat Pump. Department of Energy Technology, Royal Institute of Technology. Stockholm : Royal Institute of Technology, KTH, PhD Thesis. ISBN: Forsén, Martin Ökad användning av värmepumar En förutusättning för att nå EU:s mål. Svenska Värmepumpföreningen - SVEP. [Online] February 3, [Cited: February 25, 2010.] _varmepumar_en_forutusattning_for_att_na_eus_20_20_20_mal_martin_fors en.pdf. Betriebswirtschaft
30 References (2/2) Granryd, Eric, et al Refrigeration Engineering. 5th Edition. Stockholm : Royal Institute of Technology, KTH, Vol. I. HKT-Goeldner HKT-Goeldner. [Online] [Cited: March 19, 2010.] Karlsson, Fredrik, Axell, Monica and Fahlen, Per Heat Pump Systems in Sweden. Swedish National Testing and Research institute; Chalmers University of Technology. Borås : s.n., Country Report for IEA HPP - Annex28. Refrigerant data summary. Calm, J M and Hourahan G C November 2001, Engineered Systems, Vol. 18, pp Svensk Fjärrvärme Statistik om fjärrvärme och kraftvärme Svensk Fjärrvärme AB Web site. [Online] [Cited: February 25, 2010.] The climate change implications of manufacturing refrigerants: A calculation of 'production' energy contents of some common refrigerants. Campbell, N J and McCulloch, A , s.l. : Institution of Chemical Engineers, August 1998, Process Safety and Environmental Protection, Vol. 76, pp Betriebswirtschaft
31 Thank you
Borehole storage coupled with heat pump for domestic heating system and space free cooling
Borehole storage coupled with heat pump for domestic heating system and space free cooling ----- The analysis of temperature traces of the boreholes and system SPF Bo He, PhD; David Kroon, Msc. Nibe AB,
More informationPostprint. This is the accepted version of a paper presented at 13th IIR Gustav Lorentzen Conference.
http://www.diva-portal.org Postprint This is the accepted version of a paper presented at 13th IIR Gustav Lorentzen Conference. Citation for the original published paper: Raka Adrianto, L., Grandjean,
More informationMINICHANNEL DEVICES FOR LOW CHARGE REFRIGERATING SYSTEMS
Webinar Dec 10, 2012 MINICHANNEL DEVICES FOR LOW CHARGE REFRIGERATING SYSTEMS Università degli Studi di Padova Dipartimento di Ingegneria Industriale Why minichannel technology? - The refrigerant charge
More informationVariable Speed Solutions. Outstanding performance for residential applications
Variable Speed Solutions Outstanding performance for residential applications Heat pumps - an efficient technology using renewable energy Environmental impact, reduction of carbon footprint and energy
More informationfor refurbishing future?
High temperature residential heat pump for refurbishing What preferred refrigerant for the next future? Denis CLODIC IEA Workshop Paris, November 8, 2004 CENTRE D ENERGETIQUE 1 Contents Heat pump specifications
More informationHEATING SYSTEM RETURN TEMPERATURE EFFECT ON HEAT PUMP PERFORMANCE
Poster P.5.5 - - HEATING SYSTEM RETURN TEMPERATURE EFFECT ON HEAT PUMP PERFORMANCE M. Maivel, early-stage researcher, J. Kurnitski, Professor Tallinn University of Technology Tallinn, Estonia Abstract.
More informationHPC 2017 Performance simulation and exergy analysis on multi-stage compression high temperature heat pumps with R1234ze(Z) refrigerant
Performance simulation and exergy analysis on multi-stage compression high temperature heat pumps with R1234ze(Z) refrigerant Bin Hu, Di Wu, R.Z. Wang Institute of Refrigeration and Cryogenics Shanghai
More informationPERFORMANCE EVALUATION OF HEAT PUMP SYSTEM USING R744/R161 MIXTURE REFRIGERANT
THERMAL SCIENCE, Year 2014, Vol. 18, No. 5, pp. 1673-1677 1673 PERFORMANCE EVALUATION OF HEAT PUMP SYSTEM USING R744/R161 MIXTURE REFRIGERANT by Xian-Ping ZHANG a,b, Xin-Li WEI b, Xiao-Wei FAN c*, Fu-Jun
More informationENVIRONMENTAL IMPACT OF R22 RETROFITING. Liviu DRUGHEAN (*), Anica ILIE (*), Alina GIRIP (*), Daniela TEODORESCU (*)
ENVIRONMENTAL IMPACT OF R22 RETROFITING Liviu DRUGHEAN (*), Anica ILIE (*), Alina GIRIP (*), Daniela TEODORESCU (*) 1 1. INTRODUCTION The Montreal and Kyoto Protocol have introduced a series of the restrictions
More informationSHORT COURCE: ADVANCED MODELING AND TOOLS FOR ANALYSIS OF ENERGY USE IN SUPERMARKET SYSTEMS
SHORT COURCE: ADVANCED MODELING AND TOOLS FOR ANALYSIS OF ENERGY USE IN SUPERMARKET SYSTEMS Performance Analysis, System Optimization and Tool Development An open workshop at the ICR2007 1 Program (Session
More informationDESIGN AND OPTIMUM CONTROL OF A SWEDISH DUAL- SOURCE (AIR AND GROUND) HEAT PUMP SYSTEM
DESIGN AND OPTIMUM CONTROL OF A SWEDISH DUAL- SOURCE (AIR AND GROUND) HEAT PUMP SYSTEM T. Lindholm, Ph.D., Department of Energy and Environment/Building Services Engineering, Chalmers University of Technology,
More informationDeployment of a New Series of Eco Turbo ETI Chillers
56 Deployment of a New Series of Eco Turbo ETI Chillers KENJI UEDA *1 YASUSHI HASEGAWA *2 KAZUKI WAJIMA *3 MASAHARU NITTA *2 YASUHIRO KAMADA *1 AKIMASA YOKOYAMA *2 The use of inverters in heat source equipment
More informationTHE HEAT PUMP IN THE REFURBISHMENT OF EXISTING BUILDINGS PERSPECTIVES FROM SWEDEN
THE HEAT PUMP IN THE REFURBISHMENT OF EXISTING BUILDINGS PERSPECTIVES FROM SWEDEN Per Lundqvist, KTH, professor KTH, Energy Technology Applied Thermodynamics and Refrigeration President commission E2 IIR
More informationAIR-TO-AIR HEAT PUMPS EVALUATED FOR NORDIC CLIMATES- TRENDS AND STANDARDS
Poster P.2.14-1 - AIR-TO-AIR HEAT PUMPS EVALUATED FOR NORDIC CLIMATES- TRENDS AND STANDARDS Helena Nakos, MSc, SP Technical Research Institute of Sweden, Energy Technology, Box 857, 501 15 Borås, Sweden;
More informationSELECTION OF LOW GWP REFRIGERANT FOR HEAT PUMP BY ASSESSING THE LIFE CYCLE CLIMATE PERFORMANCE (LCCP)
Poster P.1.10-1 - SELECTION OF LOW GWP REFRIGERANT FOR HEAT PUMP BY ASSESSING THE LIFE CYCLE CLIMATE PERFORMANCE (LCCP) Pavel Makhnatch, PhD student, Royal Institute of Technology, Department of Energy
More informationCO 2 the natural refrigerant for MT and LT in discounters, super- and hypermarkets PE4, Bernd Heinbokel
CO 2 the natural refrigerant for MT and LT in discounters, super- and hypermarkets 18.08.09 PE4, Bernd Heinbokel AGENDA 1 Legislation in Europe, trends Comparison of refrigerants Overview on subcritical
More informationCO2 solutions February 2018
CO2 solutions 27-28 February 2018 Summary Overview of regulations Overview of Rivacold solution CO2 carbon dioxide CO2 Rivacold solution Case History 2 1. Overview of regulations Overview of regulations
More informationSmart Control strategies for heat pump systems. Hatef Madani May 2016
Smart Control strategies for heat pump systems Hatef Madani May 2016 Meeting Agenda 1 2 3 4 Background and motivation Project s goal Implementation List of relevant papers Capacity control in Heat Pump
More informationEnergy Optimization of an Installation of Reversible Geothermal Heat Pump
Energy Optimization of an Installation of Reversible Geothermal Heat Pump Fernando Cerdeira Pérez * 1, Manuel Eusebio Vázquez Alfaya 1, Marcos Pose Varela 1, Estrella Álvarez da Costa 2 1 Department of
More informationChillventa Specialist Forums 2016 Chillventa Fachforen 2016
Hall 4A Chillventa Specialist Forums 2016 Chillventa Fachforen 2016 1/15 1 A high temperature heat pump with HFO-1336mzz(Z) as the working fluid: Performance Simulations and Measurements Michael Lauermann
More informationPERFORMANCE MEASUREMENT AND MODELING OF AIR-SOURCE RESIDENTIAL HEAT PUMPS
PERFORMANCE MEASUREMENT AND MODELING OF AIR-SOURCE RESIDENTIAL HEAT PUMPS Eric Dumont, PhD, Thermodynamics Division, Faculty of Engineering, Mons, Belgium Marc Frère, Professor, Thermodynamics Division,
More informationFebruary 20, 2014: The attached paper was presented at the 2014 ASHRAE Winter Meeting in New York City. It was published as a conference paper.
February 20, 2014: The attached paper was presented at the 2014 ASHRAE Winter Meeting in New York City. It was published as a conference paper. The ASHRAE format for referencing the paper is as follows:
More informationCO 2 Transcritical Cycle for Ground Source Heat Pump
CO 2 Transcritical Cycle for Ground Source Heat Pump.Ma Yitai, professor, Thermal energy research institute of Tianjin University, Tianjin, China Wang Jinggang, PhD student, Thermal energy research institute
More informationVariable Speed Solutions Outstanding Performance For Heat Pump Applications
Variable Speed Solutions Outstanding Performance For Heat Pump Applications Your Choice For An Efficient Heating Solution Emerson Climate Technologies offers a wide selection of products from single components
More information1st October Robert Kebby Marketing Manager
1st October 2014 Robert Kebby Marketing Manager Why R-404A? Success of R404A over the last 15 to 20 years - Replaced ODP products such as R12 / R502 & more recently R22 - Marketed well as a one solution
More informationParametric Study of a Vapor Compression Refrigeration Cycle Using a Two-Phase Constant Area Ejector
Vol:7, No:, 01 Parametric Study of a Vapor Compression Refrigeration Cycle Using a Two-Phase Constant Area Ejector E. Elgendy International Science Index, Mechanical and Mechatronics Engineering Vol:7,
More informationTHE ECOLOGICAL COST: A SUITABLE CRITERION FOR TUBE SIZING IN REVERSE CYCLE MACHINES
THE ECOLOGICAL COST: A SUITABLE CRITERION FOR TUBE SIZING IN REVERSE CYCLE MACHINES ORIOL DEL RIVERO VILÀ July 2012 A. KHEIRI, M. FEIDT. Université de Lorraine Lemta, 2 Avenue de la Forêt de Haye, Vandoeuvre-lès-Nancy
More informationSecond Law Analysis of a Carbon Dioxide Transcritical Power System in Low-grade Heat Source Recovery
Second Law Analysis of a Carbon Dioxide Transcritical Power System in Low-grade Heat Source Recovery Y. Chen, Almaz Bitew Workie, Per Lundqvist Div. of Applied Thermodynamics and Refrigeration, Department
More informationINNOVATIVE METHOD FOR PERFORMANCE INSPECTIONS OFTEN SAVE 20-30% THROUGH OPTIMISATION OF AIR-CONDITIONING AND REFRIGERATION.
INNOVATIVE METHOD FOR PERFORMANCE INSPECTIONS OFTEN SAVE 20-30% THROUGH OPTIMISATION OF AIR-CONDITIONING AND REFRIGERATION. Klas Berglöf ClimaCheck Sweden AB Stockholm, Sweden Tel. +46 8 55 61 55 75, klas@climacheck.com
More informationBINARY BLEND OF CARBON DIOXIDE AND FLUORO ETHANE AS WORKING FLUID IN TRANSCRITICAL HEAT PUMP SYSTEMS
THERMAL SCIENCE, Year 2015, Vol. 19, No. 4, pp. 1317-1321 1317 Introduction BINARY BLEND OF CARBON DIOXIDE AND FLUORO ETHANE AS WORKING FLUID IN TRANSCRITICAL HEAT PUMP SYSTEMS by Xian-Ping ZHANG a*, Fang
More informationTHERMAL ENERGY STORAGE FOR SUPERMARKETS. Z. Ure CEng., MSc., MASHRAE, MCIBSE. M.InstR (1) C.B. Beggs BSc, MPhil, PhD, CEng, MCIBSE (2)
THERMAL ENERGY STORAGE FOR SUPERMARKETS Z. Ure CEng., MSc., MASHRAE, MCIBSE. M.InstR (1) C.B. Beggs BSc, MPhil, PhD, CEng, MCIBSE (2) (1) Environmental Process Systems, Kardelton House, Vansittart Road
More informationDesign, modelling, performance optimization and experimentation of a reversible HP/ORC prototype.
EA-45-1 - Design, modelling, performance optimization and experimentation of a reversible HP/ORC prototype. Olivier, Dumont, PhD student, Thermodynamics and Energetics Laboratory Chemin des chevreuils,
More informationK.S. Rawat 1, H. Khulve 2, A.K. Pratihar 3 1,3 Department of Mechanical Engineering, GBPUAT, Pantnagar , India
Thermodynamic Analysis of Combined ORC-VCR System Using Low Grade Thermal Energy K.S. Rawat 1, H. Khulve 2, A.K. Pratihar 3 1,3 Department of Mechanical Engineering, GBPUAT, Pantnagar-263145, India 2 Department
More informationGreen economy with natural refrigerants
Green economy with natural refrigerants by Reducing Ammonia Charge in Industrial Refrigeration Systems Using Direct Expansion by Bruce I. Nelson, P.E. President Colmac Coil Manufacturing, Inc. Background
More informationVOL. 29, Introduction
A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 29, 2012 Guest Editors: Petar Sabev Varbanov, Hon Loong Lam, Jiří Jaromír Klemeš Copyright 2012, AIDIC Servizi S.r.l., ISBN 978-88-95608-20-4; ISSN
More informationHydrocarbon Refrigerant Performance in UAE Air-Cooled Chillers
Hydrocarbon Refrigerant Performance in UAE Air-Cooled Chillers Peter Armstrong, Masdar Institute, October 2014 Research Sponsors: Tabreed Executive Affairs Authority 1 Motivation for Efficient Cooling
More informationFLOWRATE DEPENDENT HEAT-PUMP MODEL
Poster P.4.10-1 - FLOWRATE DEPENDENT HEAT-PUMP MODEL Andreas, Genkinger, dipl. Phys., Research Associate, University of Applied Sciences and Arts Northwestern Switzerland, School of Architecture, Civil
More informationReducing running costs, whilst benefiting the environment and the future
Reducing running costs, whilst benefiting the environment and the future The Danfoss DHP-R produces heating and hot water using stored solar energy from the bedrock, surface ground, groundwater or exhaust
More informationCO 2 Heat Pump System for Combined Heating and Cooling of Non-Residential Buildings
The 22 nd IIR International Congress or Refrigeration Beijing, China CO 2 Heat Pump System for Combined Heating and Cooling of Non-Residential Buildings Jørn Stene (a,b), Arne Jakobsen (a), Trond Andresen
More informationEXPERIMENTAL STUDY OF ALTERNATIVE REFRIGERANTS TO REPLACE R134a IN A DOMESTIC REFRIGERATOR
EXPERIMENTAL STUDY OF ALTERNATIVE REFRIGERANTS TO REPLACE R134a IN A DOMESTIC REFRIGERATOR Balakrishnan.P 1, Dr.K.Karuppasamy 2, Ramkumar.J 3, Anu Nair.P 4 1,4 PG Scholar, Department Of Mechanical Engineering,
More informationPHRT HEAT PUMP WITH HYDRAULIC EQUIPMENT AIR / WATER 7 to 16 KW
TECHNICAL INSTRUCTIONS PHRT HEAT PUMP WITH HYDRAULIC EQUIPMENT AIR / WATER to KW PHRT PHRT PHRT For terminal units and boiler overhaul applications Heating Cooling PHRT.0 kw -.0 kw PHRT.00 kw -.0 kw 0.0
More informationThe hybrid two stage anticlockwise cycle for ecological energy conversion
The hybrid two stage anticlockwise cycle for ecological energy conversion Piotr Cyklis,a Politechnika Krakowska, Department of Mechanical Engineering, Institute of Power and Process Engineering Poland
More informationWINERY ENERGY SAVER TOOLKIT SUPPLIER CHECKLIST COMPRESSED AIR
Supplier Checklist WINERY ENERGY SAVER TOOLKIT SUPPLIER CHECKLIST COMPRESSED AIR The following checklist provides guidance on which information to collect from within the winery and from the equipment
More informationExperimental Performance of a Prototype Carbon Dioxide Compressor
Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2010 Experimental Performance of a Prototype Carbon Dioxide Compressor Seth Holloway W. Travis Horton Eckhard
More informationNEW GENERATION OF A HIGHLY COMPACT SOLAR HEAT PUMP SYSTEM WITH BOOSTED ENERGETIC EFFICIENCY
NEW GENERATION OF A HIGHLY COMPACT SOLAR HEAT PUMP SYSTEM WITH BOOSTED ENERGETIC EFFICIENCY I. Mojic 1 ; M.Y. Haller 1 ; B. Thissen 2 ; F. Hengel 3, A. Heinz 3 1: Institute for Solar Technology SPF, HSR
More informationLife Cycle Assessment of air conditioning and heat pumps, manufacturers experience. IIR WP Delft 28 June2012 Martin Dieryckx Daikin Europe NV
Life Cycle Assessment of air conditioning and heat pumps, manufacturers experience IIR WP Delft 28 June2012 Martin Dieryckx Daikin Europe NV General business drivers in the EU EU policies 20 20 20 Non
More informationAlfaNova 14. Fusion plate heat exchanger
AlfaNova 14 Fusion plate heat exchanger General information AlfaNova is a plate heat exchanger made of 100% stainless steel. It is based on Alfa Laval s new revolutionary technology, AlfaFusion, the art
More informationAn Integrated Solution for Commercial AC Chillers Using Variable Speed Scroll Compressors
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2016 An Integrated Solution for Commercial AC Chillers Using Variable Speed
More informationMeasurement and Simulation of Startup and Shut Down of Heat Pumps
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2010 Measurement and Simulation of Startup and Shut Down of Heat Pumps Michael
More informationPerformance Inspection saves energy in air-conditioning, refrigeration and heat pump systems.
Performance Inspection saves energy in air-conditioning, refrigeration and heat pump systems. Author: Klas Berglöf, MoSc, MD ClimaCheck Sweden AB, klas@climacheck.com. Refrigeration processes are estimated
More informationHELICAL OIL SEPARATORS
OIL SEPARATORS HELICAL OIL SEPARATORS The function of a Helical Oil Separator is to efficiently remove oil from the discharge gas and return it to the compressor, either directly or indirectly. This helps
More informationTEST REPORT #51. Compressor Calorimeter Test of Refrigerant Blend DR-33 (R449A) in a R-404A Reciprocating Compressor
Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #51 Compressor Calorimeter Test of Refrigerant Blend DR-33 (R449A)
More informationHEAT PUMP STATISTICS: A KEY TO HEAT PUMP RECOGNITION
- 1 - HEAT PUMP STATISTICS: A KEY TO HEAT PUMP RECOGNITION Johan, Berg, PhD, SP Energy Technology, SP Technical Research Institute of Sweden, Borås, Sweden Roger, Nordman, PhD, SP Energy Technology, SP
More informationHow heat pumps can help your project to pass Planning and Building Regulations Learning Outcomes Understand current planning and building regulations Understand the software used to meet these regulations
More informationGLOBAL WARMING IMPACT OF LOW GWP CHILLER REFRIGERANTS: LCCP/TEWI vs GWP LCCP/TEWI vs Other Factors
GLOBAL WARMING IMPACT OF LOW GWP CHILLER REFRIGERANTS: LCCP/TEWI vs GWP LCCP/TEWI vs Other Factors IIR Working Party Life Cycle Climate Performance Evaluation Delft, The Netherlands -- June 28, 2012 HFOs
More informationDISTRIBUTED TEMPERATURE MEASUREMENTS ON A U-PIPE THERMOSYPHON BOREHOLE HEAT EXCHANGER WITH CO 2
DISTRIBUTED TEMPERATURE MEASUREMENTS ON A U-PIPE THERMOSYPHON BOREHOLE HEAT EXCHANGER WITH CO 2 J. ACUÑA (a), B. PALM (a), R. KHODABANDEH (a), K. WEBER (b) (a) Royal Institute of Technology, Brinellvägen
More informationECONOMIC HEATING SYSTEMS FOR LOW ENERGY BUILDINGS IN SWEDEN
Numbers of Abstract/Session (given by NOC) - 1 - ECONOMIC HEATING SYSTEMS FOR LOW ENERGY BUILDINGS IN SWEDEN Svein, Ruud, Senior expert, Department of Energy Technology, SP Technical Research Institute
More informationEvaluation of R-449A as a Replacement for R-22 in Low and Medium Temperature Refrigeration
Evaluation of R-449A as a Replacement for R-22 in Low and Medium Temperature Refrigeration Andrew Pansulla, The Chemours Company Charles Allgood, The Chemours Company July 11-14, 2016 Agenda Regulations
More informationIndustrial Heat Pumps
IEA Meeting Technological Institute, Aarhus, Denmark Industrial Heat Pumps If the you can read this Click on the icon to choose a picture or Reset the slide. To Reset: Right click on the slide thumbnail
More informationHEAT PUMP WITH HIGH OUTLET TEMPERATURES
HEAT PUMP WITH HIGH OUTLET TEMPERATURES Dr. rer. nat. Bernd Hafner, Dr.-Ing. Klaus Heikrodt, Viessmann Werke GmbH & Co KG, 35107 Allendorf (Eder), Germany ABSTRACT For house heating applications heat-pumps
More informationCOP Improvement Of A CO2 Refrigeration System With An Expander-Compressor-Unit (ECU) In Subcritical And Transcritical Operation
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2012 COP Improvement Of A CO2 Refrigeration System With An Expander-Compressor-Unit
More informationExperimental Investigation of a Hermetic Scroll Expander-Generator
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1994 Experimental Investigation of a Hermetic Scroll Expander-Generator R. Zanelli Swiss
More informationEurammon Symposium Ammonia Absorption Refrigeration. Colibri b.v.
Eurammon Symposium 2016 Ammonia Absorption Refrigeration Michael Rabenstein Jürgen Langreck Colibri b.v. Introduction Colibri b.v. colibri b.v. experts in ammonia absorption refrigeration Products and
More informationLarge scale heat pumps for high efficiency district heating projects
Large scale heat pumps for high efficiency district heating projects SIRACH Kenneth Hoffmann, July, 2018 Slide 1 Why are industrial heat pumps needed? Slide 2 How do industrial heat pumps contribute? Heat
More information> HGW WATER - WATER AND BRINE - WATER HEAT PUMPS FOR INDOOR INSTALLATION. Available range. Unit description. Options. Accessories
> HGW WATER - WATER AND BRINE - WATER HEAT PUMPS FOR INDOOR INSTALLATION Available range Unit type IH Heat pump IP Reversible heat pump (reversible on the refrigerant side) ECO-FRIENDLY REFRIGERANT GAS
More informationNTB University of Applied Sciences of Technology Buchs, Switzerland 2. Ecole Polytechnique Fédérale de Lausanne, Switzerland
INSTITUTE FOR ENERGY SYSTEMS International Workshop on High Temperature Heat Pumps, Sept. 9, 2017, Kopenhagen Review on High Temperature Heat Pumps Market Overview and Research Status Cordin ARPAGAUS 1,
More informationInvestigations of Heat Recovery in Different Refrigeration System Solutions in Supermarkets
Investigations of Heat Recovery in Different Refrigeration System Solutions in Supermarkets Samer Sawalha Department of Energy Technology Kungliga Tekniska Högskola Stockholm-Sweden 2008 Project background
More informationThermostatic expansion valves for R290 Product type TUB / TUBE and TCBE
Data sheet Thermostatic expansion valves for R290 Product type and TUB/ and valves are made of stainless steel and are therefore very suitable for refrigeration systems in the food industry. Applications:
More informationPerformance evaluation of a plate type (HTST) milk pasteurizer
Research Journal of Animal Husbandry and Dairy Science e ISSN-31-644 RESEARCH PAPER Volume 6 Issue Dec., 015 130-134 DOI: 10.15740/HAS/RJAHDS/6./130-134 Visit us: www.researchjournal.co.in Performance
More informationEstimating Potential Energy Savings in Compressed Air Systems
Available online at www.sciencedirect.com Procedia Engineering 39 (2012 ) 204 211 XIIIth International Scientific and Engineering Conference HERVICON-2011 Estimating Potential Energy Savings in Compressed
More informationEnergy labelling and ecodesign requirements for heat pumps
Prepared for the Danish Energy Agency by Pia Rasmussen, Danish Technological Institute 31 December 2011 Energy labelling and ecodesign requirements for heat pumps The following document describes adopted
More informationHigh efficient heat reclaim with CO2
High efficient heat reclaim with CO2 Refrigeration systems with transcritical CO 2 has been taking market shares the last years. Since 2007 the market in Denmark has turned from conventional refrigeration
More informationOpportunities for combined heating and cooling A case study from Nestle Halifax
Opportunities for combined heating and cooling A case study from Nestle Halifax Dave Pearson Director of Innovation Star Refrigeration Ltd Why bother? www.thisismoney.co.uk Supply of energy www.thisismoney.co.uk
More informationANNEXES. to the REPORT FROM THE COMMISSION
EUROPEAN COMMISSION Brussels, 4.8.2017 C(2017) 5230 final ANNEXES 1 to 2 ANNEXES to the REPORT FROM THE COMMISSION assessing the 2022 to avoid highly global warming Hydrofluorocarbons in some commercial
More informationTrends in Refrigeration System Architecture and CO 2. Andre Patenaude Emerson Climate Technologies
Trends in Refrigeration System Architecture and CO 2 Andre Patenaude Emerson Climate Technologies What s Hot in Supermarket Refrigeration? MT Cases With Doors LED Lighting Low Condensing ECM Fan Motors
More informationScientific Journal Impact Factor: (ISRA), Impact Factor: [Son, 3(10): October, 2014] ISSN:
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY Performance Characteristics of the R404A Indirect Refrigeration System Using CO2 as a Secondary Refrigerant Jung-In Yoon*, Kwang-Hwan
More informationClimaCheck Sweden. World leader in Performance Analysing for refrigeration and air-conditioning systems
ClimaCheck Enhance performance save energy and environment in air-conditioning refrigeration and heat pumps systems Field inspection unit Fixed installation ClimaCheck Sweden AB Klas Berglöf www.climacheck.com
More informationResearch on CO 2 Heat Pumps and Other CO 2 Novel Systems at The Energy Department of KTH
Research on CO 2 Heat Pumps and Other CO 2 Novel Systems at The Energy Department of KTH Yang Chen (KTH) Per Lundqvist (KTH) 1 Content Research on CO2 heat pump systems (Effsys 2 project) Thermal properties
More informationCold Plate economy and ecology in supermarkets
Cold Plate economy and ecology in supermarkets ColdPlate Cold Plate efficiency Environmental and commercial support Many synthetic refrigerants have unwanted global warming and ozone depletion effects,
More informationCommon Benchmark Ecolabel & GPP Criteria for Hydronic Central Heating Systems. Elena Rodriguez Vieitez & Oliver Wolf
Common Benchmark Ecolabel & GPP Criteria for Hydronic Central Heating Systems Elena Rodriguez Vieitez & Oliver Wolf October 2010 COMMON BENCHMARK ECOLABEL & GPP CRITERIA FOR HYDRONIC CENTRAL HEATING SYSTEMS
More informationInnovation in carbon-ammonia adsorption heat pump technology: a case study
Innovation in carbon-ammonia adsorption heat pump technology: a case study Angeles Rivero Pacho 3 rd December 2015 Introduction The Carbon Plan and the Strategic Framework stated that meeting the 80% CO
More informationThermodynamic Performance Assessment of R32 and R1234yf Mixtures as Alternatives of R410A
Thermodynamic Performance Assessment of R32 and R1234yf Mixtures as Alternatives of R410A May 2017 Nan Zheng a, Yunho Hwang b * a Department of Process Equipment & Control Engineering Xi an Jiaotong University
More informationSeasonal performances and compression technology
MAKING MODERN LIVING POSSIBLE White paper Seasonal performances and compression technology In the near future, the seasonal performance of thermodynamic systems will be the main performance objective of
More informationREFRIGERANT/SECTOR MATRIX. Advice of NVKL Project Group KANS Coen van de Sande
REFRIGERANT/SECTOR MATRIX Advice of NVKL Project Group KANS Coen van de Sande 1 Content 1. INTRODUCTION 2. SECTORS CONSIDERED 3. SYSTEMS CONSIDERED 4. CRITERIA CONSIDERED 5. RESULTS 6. NEXT STEPS 2 Introduction
More informationNew Suggestions for Centrifugal Chiller Technologies to Realize High Efficiency and High Functionality
38 New Suggestions for Centrifugal Chiller Technologies to Realize High Efficiency and High Functionality YASUSHI HASEGAWA *1 MASAHARU NITTA *1 KAZUKI WAJIMA *1 KENJI UEDA *2 The efficiency and functionality
More informationLow GWP R-410A Alternatives in Heat Pumps: Drop-in LCCP Evaluation
Low GWP Alternatives in Heat Pumps: Drop-in LCCP Evaluation 214 Gang Li Yunho Hwang Center for Environmental Energy Engineering Department of Mechanical Engineering University of Maryland College Park,
More informationExperimental investigation of a Scroll unit used as a compressor and as an expander in a Heat Pump/ ORC reversible unit
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2014 Experimental investigation of a Scroll unit used as a compressor and as
More informationDesign Recommendations for R-718 Heat Pumps in High Temperature Applications
Downloaded from orbit.dtu.dk on: Feb 26, 2019 Design Recommendations for R-718 Heat Pumps in High Temperature Applications Zühlsdorf, Benjamin; Schlemminger, Christian ; Bantle, Michael ; Evenmo, Kjetil
More informationAmmonia and Carbon Dioxide Heat Pumps for Heat Recovery in Industry
Downloaded from orbit.dtu.dk on: Aug 23, 2018 Ammonia and Carbon Dioxide Heat Pumps for Heat Recovery in Industry Markussen, Wiebke Brix; Christensen, Stefan W.; Markussen, Michael M.; Reinholdt, Lars;
More informationThis is the published version of a paper presented at European Geothermal Congress 2016 Strasbourg, September 2016.
http://www.diva-portal.org This is the published version of a paper presented at European Geothermal Congress 2016 Strasbourg, 19-23 September 2016. Citation for the original published paper: Ignatowicz,
More informationLow GWP Chiller Refrigerants: Weighing the Tradeoffs
(GWP: Global Warming Potential) Low GWP Chiller Refrigerants: Weighing the Tradeoffs ASHRAE/UNEP: Road to Climate Friendly Chillers Cairo, Egypt October 1st, 2010 Kostas Kontomaris, Ph.D. DuPont Fluorochemicals
More informationExergy analysis of transcritical carbon dioxide refrigeration cycle with an expander
Energy 30 (2005) 1162 1175 www.elsevier.com/locate/energy Exergy analysis of transcritical carbon dioxide refrigeration cycle with an expander Jun Lan Yang, Yi Tai Ma*, Min Xia Li, Hai Qing Guan Thermal
More informationENERGY AND EXERGY ANALYSIS OF HEAT PUMP USING R744/R32 REFRIGERANT MIXTURE
THERMAL SCIENCE, Year 2014, Vol. 18, No. 5, pp. 1649-1654 1649 ENERGY AND EXERGY ANALYSIS OF HEAT PUMP USING R744/R32 REFRIGERANT MIXTURE by Fang WANG, Xiao-Wei FAN, Jie CHEN, and Zhi-Wei LIAN School of
More information- 2 - SME Q1. (a) Briefly explain how the following methods used in a gas-turbine power plant increase the thermal efficiency:
- 2 - Q1. (a) Briefly explain how the following methods used in a gas-turbine power plant increase the thermal efficiency: i) regenerator ii) intercooling between compressors (6 marks) (b) Air enters a
More informationEco ice systems mean you use innovative technology for cost-effective and environmentally friendly production of heat and cold.
Eco ice systems mean you use innovative technology for cost-effective and environmentally friendly production of heat and cold. Eco ice Kälte GmbH is based in Borna near Leipzig. Since 2013, we have been
More informationCO 2 the natural refrigerant for MT and LT in discounters, supermarkets and hypermarkets. October 19, 2009 Bernd Heinbokel
CO 2 the natural refrigerant for MT and LT in discounters, supermarkets and hypermarkets October 19, 2009 Bernd Heinbokel 1 AGENDA Comparison of refrigerants Overview on subcritical LT cascade systems
More informationIEA HPP Annexes, ongoing
Ongoing Annexes IEA HPP Annex 36 Quality Installation / Quality Maintenance Sensitivity Studies (Avoiding Heat Pump Efficiency Degradation Due to Poor Installations and Maintenance) SUMMARY ARTICLE Introduction
More informationExperimental Study of R-134a Alternative in a Supermarket Refrigeration System
Experimental Study of R-134a Alternative in a Supermarket Refrigeration System June 26, 2011 Barbara Minor - DuPont Fluorochemicals Dr. Frank Rinne - DuPont Fluorochemicals Dr. Kahtan Salem - tebeg, Wurzburg,
More informationGuide. Heat Pump Boilers. Information. Issue Ten >
Information Guide Heat Pump Boilers Issue Ten > Heat Pump Boilers Information Guide This is an independent guide produced by Mitsubishi Electric to enhance the knowledge of its customers and provide a
More informationCool Producing Systems Based on Burning and Gasification of Biomass
Cool Producing Systems Based on Burning and Gasification of Biomass J. POSPISIL, J. FIEDLER, Z. SKALA Energy Institute Faculty of Mechanical Engineering Brno University of Technology Technicka 2, Brno
More information