Prefabricated Buildings in Europe -

Transcription

1 Groß & Partner Prefabricated Buildings in Europe - Assessment of Ecological Aspects with LCA Green Building & Prefabrication Forum Beijing : Johannes Kreissig, German Sustainable Building Council DGNB

2 Climate Targets to keep the rise of global temperature under 2 Degree, below 1,5 Degree if possible DGNB

3 Our global CO2 budget To achieve < 2 we have a remaining CO 2 emission budget of max. 687 Gt CO 2 until the year 2100 Global emissions today: 40 Gt CO 2 /a IPCC, Climate Change 2014: Mitigation of Climate Change DGNB

4 1. D G N B 德国可持续建筑委员会 可持续是新常态 DGNB

5 Our Vision 愿景 : Implement the planning, construction and operation of sustainable buildings and neighborhoods as the NEW NORMAL for the entire built environment 在建筑和城区中实现可持续的设计 施工和运营, 使之成为建筑业的新常态 DGNB

6 DGNB the sustainable construction network >3.800 Certified buildings in 21 countries 认证建筑分布于 21 个国家 Member organisations in 30 countries 会员企业来自 30 余国家 500 Volenteers 志愿专家团队 Trained experts in 35 countries 咨询师来自 35 个国家 Key instruments 工具 : - Education 教育培训 - Certification 认证 - Lobbying 宣传 Visitors (2017) in the DGNB office 2017 年接受到访 DGNB

7 S t r u c t u r e D G N B m e m b e r o r g a n i s a t i o n s D G N B 会员组成 Consulants 咨询机构 15% Investors 投资方 9% Others 其他 6% Builders 建造商 5% Engineering 工程师 16% R&D 科研单位 5% NGOs 非政府组织 3% FM 运营商 1% Individuals 个人 1% Governments 政府 1% Operators 运营商 1% Architects 建筑师 18% Manufacturers 生产商 20%

8 DGNB the sustainable construction network >3.800 Certified buildings in 21 countries 认证建筑分布于 21 个国家 Member organisations in 30 countries 会员企业来自 30 余国家 500 Volenteers 志愿专家团队 Trained experts in 35 countries 咨询师来自 35 个国家 Key instruments 工具 : - Education 教育培训 - Certification 认证 - Lobbying 宣传 Visitors (2017) in the DGNB office 2017 年接受到访

9 Our instruments 工具 Network of experts in Germany and global 德国及国际范围的专家网络 Education / trainings 教育 / 培训 Certification of buildings and districts 建筑及城区认证

10 DGNB the sustainable construction network >3.800 Certified buildings in 21 countries 认证建筑分布于 21 个国家 Member organisations in 30 countries 会员企业来自 30 余国家 500 Volenteers 志愿专家团队 Trained experts in 35 countries 咨询师来自 35 个国家 Key instruments 工具 : - Education 教育培训 - Certification 认证 - Lobbying 宣传 Visitors (2017) in the DGNB office 2017 年接受到访

11 DGNB Academy DGNB 学院 Consultant and Auditor trainings Sustainability basic knowledge Global network of experts

12 The DGNB certificate DGNB 认证 The global Benchmark for Sustainability 国际化的可持续建筑指标 Criteria and Benchmarks are adapted to 要求和指标的适配基础 Use profiles 使用类型 (housing, office, hotel-, school, retail, logistics, production, and districts and interiors 住宅, 办公, 酒店, 教育, 商业, 物流, 工业 城区, 内装 )

13 The DGNB certificate DGNB 认证 The global Benchmark for Sustainability 国际化的可持续建筑指标 Criteria and Benchmarks are adapted to 要求和指标的适配基础 Stages in life cycle 项目阶段 (design and new construction, renovation, buildings in use, existing buildings 设计, 新建, 改建, 既有, 运营 ), Regional characteristics 地域特点

14 O U R G O A L 目标 : A F U T U R E P R O O F B U I LT E N V I R O N M E N T 适应未来的建筑环境

15 O u r p r i n c i p l e s Design and build better buildings and districts using - holistic, 全向的综合评估 - life cycle based 着眼于项目全寿命周期 - performance based optimisation 基于表现的优化

16 DGNB criteria overview DGNB 核心要求 Environmental quality 环境质量 Economic quality 经济质量 Sociocultural and functional quality 社会文化及功能质量 Technical quality 技术质量 Process quality 过程质量 Site quality 区位质量

17 2. L C A - L i f e C y c l e A s s e s s m e n t

18 T h e L i f e C y c l e Product stage Recycling Construction Building life cycle End-of-Life Operation Maintenance

19 S c o p e f o r s c r e e n i n g LCA Building components Quantity survey of building components x Environmental data for each component Operation Energy demand x Environmental data for energy production

20 3. E x a m p l e s

21

22

23 E x a m p l e : L i f e C y c l e To w e r by C R E E A b u i l d i n g w i t h w o o d b e a r i n g s t r u c t u r e i n D o r n b i r n / A u s t r i a Architects: Dimensions: Architecture: Energy standard: Architekten Hermann Kaufmann ZT H: 27 m, W: 13 m, L: 24 m Facades made of metal composite sheets (recycled metal), visible wooden bearing structure Passivhaus-Technology NBA: m² BGF: m² GV 8.073,5 m³ Source: Fraunhofer IBP, 2016, Pictures: Cree

24 Life Cycle Tower by CREE

25 Life Cycle Tower by CREE

26 Life Cycle Tower by CREE

27 Life Cycle Tower by CREE

28

29

30

31

32

33

34

35

36 L C T D o r n b i r n : A u s t r i a n E n e r g y P a s s p o r t Energy performance: End energy - Heating: 14,06 kwh/m2a - Cooling: 14,66 kwh/m2a - Lighting: 15,01 kwh/m2a

37 E x a m p l e 1: L i f e C y c l e To w e r L C A R e s u l t s Source: Fraunhofer IBP, 2016 Picture: Cree

38 L i f e C y c l e To w e r : C a r b o n e m i s s i o n s p e r y e a r * CO2 emissions from construction total life cycle allocated to 50 years of use

39 L i f e C y c l e To w e r : C a r b o n i n t e n s i t y o v e r 50 y e a r s Boundary conditions: Office space for 80 people 57W / person user appliances Electricity grid mix Austria assumed to be constant over time

40 Example: S8 Hamburg Residential building Prefabricated concrete elements with ETICS No basement Optimized building envelope Passive-house windows 20% additional insulation Geothermal heat pump COP > 5 Photovoltaics with 8,6 kwhp Energy demand 65% below legal requirement, prior to production by PV Energy supply from building integrated PV net surplus energy building

41 Energy demand 100 primary energy /m2a 75 90, ,04 - PE DESIGN 1 PE reference Energy supply from building integrated PV net surplus energy building

42 Payback in the life cycle Environmental LCA according to DGNB parameters Use stage (provided by PV) PV exceeds building energy demand by factor 2,7 Surplus applied for user appliances and to charge e-mobility worth of km/a Surplus replacing Grid Electricity + Fuel depending on real application

43

44 Thank you for your attention! 谢谢! German Sustainable Building Council - DGNB Johannes Kreissig CEO DGNB j.kreissig@dgnb.de phone: New Construction Homes Allkauf Haus GmbH DGNB Certificate in Gold Bild: allkauf haus GmbH