SLOVAK PILOT PROJECTS. Integrated design approach evaluation

Transcription

1 SLOVAK PILOT PROJECTS Integrated design approach evaluation

2 Pilot project overview PETRŽALSKÉ DVORY BRATISLAVA, SLOVAKIA Ultra low energy apartment house new build Flats: 45 / 2403m 2 Parking: 61 p.p. Construction: 07/ /2015 Costs 3,6 mil. Author: Kubiš/Lešinský, PIO Keramoprojekt Energy optimization: 3S Project ZELENÉ ÁTRIUM TRNAVA, SLOVAKIA Pasive house apartment house refurbishment + new build Flats: 45 Parking: 63 p.p. Retail areas: 168 m 2 Construction: Author: Marko / smf marko Energy optimization: Energy Concept s.r.o. 2

3 Petržalské dvory Bratislava, Slovakia Integrated design experiences

4 Petržalské dvory - ID process timeline 1.Misson 2.Goals 3.Priorities 2005 PROGRAMING & PRE-DESIGN 2006 CONCEPT DESIGN 2007 DESIGN OF I.PHASE (3 years suspended) 2013 CONSTRUCTION (I.phase ) 2015

5 CYCLE PROJECT DEVELOPMENT SCHEME 3x RESTART OF ID...

6 0. Programing or Pre-design ID helping to formulate the main goals: The Project mission... Used tools: Team: Site potential analysis Real-estate market and trends analysis SWOT analysis of the site Intuition and 6-th sense Client Architect Urban economy expert Real-state consultant Established criteria: Acceptability on future market Need of real added value as comparative advantage Compliance with public zoning plan Synergy of neighboring investments The uniqe identity PROGRAM 6

7 0. Programing or Pre-design ID helps to formulate Client Presumptions Design brief = The project mission LOW ENERGY FLATS AT STANDARD PRICES LIVING SPORT RECREATION INTENSITY OF DEVELOPEMENT: Ipp = 1,7 1,9 (LIVING) Ipp = 0,8 1,2 (SPORT) PROGRAM 7

8 1. Desing Basis ID approach in Optimum searching process Two independent multi-disciplinary teams competition environment: 2x Architect+civil engineer team 2x Traffic engineer Daylight&building physics expert Structural engineer consultant Massing concepts evaluation Passive solar gains studies Clearance distance & daylight analysis Economical indicators evaluation Point score evaluation criterias of design variants PROGRAM CONCEPT DESIGN 8

9 1. Desing Basis ID approach in Optimum searching process PROGRAM CONCEPT DESIGN 9

10 1. Desing Basis ID approach in Optimum searching process Swiming pool conection Ice-hockey sports centrum Residential block of flats Central square PROGRAM CONCEPT DESIGN 103D massing output

11 1. Desing Basis ID approach in Optimum searching process Highly demanding targets as an impuls for ID process: Healthy flats in Energy class A (< 27kWh/m2 ) Conservative, but fresh design Primary energy input: Class A1 (<63kWh/m2) Limit cost efficiency build-up volume price ~160 /m3 Selling price of m2 <1750 /m2 incl. VAT - comparable with mainstream projects To define and fulfill appropriate quality insurance based on Passive house methodology and Quality control plan PROGRAM CONCEPT DESIGN 11

12 Step 2: Iterative Problem Solving Bank risk manager + architekt team + client = phasing concept I.phase 45 flats ~ 3,6 mil. II.phase 140 flats ~ 8,5 mil. PROGRAM CONCEPT DESIGN DESIGN 12

13 Step 2: Iterative Problem Solving ID approach in implementing of Passive qualities Optimal orientation Compact massing Form factor = 0,36! PROGRAM CONCEPT DESIGN DESIGN 1 3

14 ID FACILITATOR Position in project Internal part od design team - one of co-autors & architects Basic role and function To deeply study potential/limits of the project site To co-define project mission, targets and proposal standards To co-create team of adequate consultants, and experts. Kick off meetings/workshops / brainstorming organization. To discuss aspects and design variants with team, co-sets evaluation criteria - to act as and communication "accelerator"... To initiate deployment of evaluation tools if needed to ensure achieving of goals and key design aspects On-track monitoring PROGRAM 14

15 Step 2. Iterative Problem Solving Multidisciplinary team approach - examples Team brainstorming: Healthy flat? The Challange... Poor indoor air quality poor sleep & relax quality High outdoor noise in city centers Hygienic risks: legionella, spores, fungi, pollutants (CO2, VOC...) Individual tenants requirements for indoor temperature in each room High operation lost of traditional heating and and hot water system Hotter summers needs of light cooling Q: Is solving with acceptable extra cost possible? PROGRAM CONCEPT DESIGN DESIGN 15

16 Step 2. Iterative Problem Solving Healty flat? : The multidisciplinary team solutions. 1. Fresh air 365/24/7! Innovative and highly efficient HR central ventilation system 2. Heat & DHW Local in-flats exchanger stations 3. Passive cooling Central sole-colector PROGRAM CONCEPT DESIGN DESIGN 16

17 Step 2. Iterative Problem Solving Integrated multidisciplinary aproach ID in daily use Workshop: Balconies: ID facilitator+ Architect+ Structural Engineer+ Building physics = PROGRAM CONCEPT DESIGN DESIGN 17

18 Step 2. Iterative Problem Solving Integrated multidisciplinary aproach - ID in daily use Workshop: Lowered ceilings ID facilitator + Architect + HVAC Engineer + CFD Expert = Difuzer & Coanda effect Output: Minimising of lowered ceilings areas to < 33% DESIGN 18

19 Step 3. On track monitoring Energetical and Economical Targets achievements summary Energy effiency targets (calcutated according national code STN): Energy class: A1 = A1 Specific heat demand: 8,4 kwh/m2/rok < 27 kwh/m2/rok Primary energy input (Heat+DWH): 45,6 kwh/m2 < 63 kwh/m2/rok Economical targets: Selling price of m2: 1700 /m2 < 1750 /m2 Average build-up volume price 155 /m3 < 160 /m3 Thanks to aplication of ID aproach and optimization from early stages concept (orientation, formfactor...) is selling price m2 fully comparable with price of neighbor new-build in mainstreem standard. Added value of ventilation system to each flat is more than 3000 /flat PROGRAM CONCEPT DESIGN DESIGN 19

20 Step 4. Delivery ID in face-to-face daily reality from 07/ /2015. CONSTRUCTION SUPERVISION ON-SITE EDUCATION SOFT-LANDING MONITORING PROGRAM CONCEPT DESIGN CONSTRUCTION

21 ID: our brief experiences summary ID ideal approach for HQ projects + minimizing building extra costs: Higher project upfront costs -> enlightened investor/market needed Rewand: Magnitude higher savings in investment and operational costs. ID is must have solution for commercial and office nzeb buildings. Well trained ID Facilitator as an key-factor to effective ID team: We could strongly recommend education in Passive house (CEPH) or similar methodology Deeper step-by-step guidance for each design stage would be welcome Regular ID is realy time consuming in early stages: At least partly accounted in Project time schedule Lack of established interactive design tools specialized for early design stages- in Slovakia (LCAA, BIM, Conceptual quantity take off...) It could be enjoying extra time in teamwork and communication... PROGRAM CONCEPT DESIGN CONSTRUCTION

22 Petržalské dvory: more info... MaTriD Pilot project-slovakia Detail document: WP4-Documentation of pilot project Petržalské Dvory Project / Architect web: ID Proces partners: Thanx for your attention... CONTRACTOR

23 Bonus: Impact of ID on design results Early discussion of the functional program and project goals with the client, architect and engineers helps identify anomalies and ambiguities, and rapid clarification of this will lead to subsequent improvements in the functionality of the building; Careful orientation, massing, fenestration and the design of shading devices can reduce heating and cooling loads, and will often improve thermal comfort; A high-performance building envelope will greatly reduce unwanted heat losses or gains, often to the point where heating or cooling systems are not required to operate at the perimeter of the building, resulting in capital cost savings and a gain in usable space; An emphasis on daylighting will reduce cooling loads, because of reduced lighting requirements, and may also improve illumination quality; These factors will permit a reduction in floor-to-floor heights (or improved daylighting because of higher net floor height), and will also permit a reduction in HVAC plant and system capacity and size equirements. Significant load reductions also open the way for use of alternative and simpler systems, such as radiant heating and cooling and natural or hybrid ventilation; Reductions in boiler, chiller, AHU and ducting sizes will, in turn, reduce capital, operating, maintenance and replacement costs; A deeper understanding of the nature and inter-relationships of all the issues described above, will lead to the possibility of a higher level of architectural expression. 23

24 Bonus: ID barriers Upfront costs Remuneration -Client awarness Lack of standardization and deeper guidance Lack of new pre-prepared ID contracts schemes Lack of systematic university education (in Slovakia) Lack of tools oriented to conceptual early stages: Life cycle cost analysis tool adapted to national market costs levels, materials, products and technologies. Lack of interactive easy-use daylight tool Importance of good BIM tool localization to national codes