Energy Concept Adviser A new internet-based tool for decision makers and their technical staff
Dipl.-Ing. Simon Wössner Fraunhofer Institute of Building Physics
Form Approved OMB No. 0704-0188
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1. REPORT DATE
2. REPORT TYPE
26 FEB 2004
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3. DATES COVERED
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4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
Energy Concept Adviser A new internet-based tool for decision makers and their technical staff
5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT NUMBER
Fraunhofer-Institut für Bauphysik, Germany 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR/MONITOR’S ACRONYM(S) 11. SPONSOR/MONITOR’S REPORT NUMBER(S)
12. DISTRIBUTION/AVAILABILITY STATEMENT
Approved for public release, distribution unlimited 13. SUPPLEMENTARY NOTES
See also ADM001865, Industrial Process and Energy Optimization. Proceedings of the Industry Workshop Held in Gettysburg, PA, 25-27 February 2004., The original document contains color images. 14. ABSTRACT 15. SUBJECT TERMS 16. SECURITY CLASSIFICATION OF: a. REPORT
b. ABSTRACT
c. THIS PAGE
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18. NUMBER OF PAGES
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53
19a. NAME OF RESPONSIBLE PERSON
Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18
Structure of Annex 36 Subtask A Selection and Analysis of Existing Information -
Motivation of decision makers Building typology Design parameters and regulations Technologies Energy benchmarks Economic performance Gaps in knowledge Documentation
Subtask B Case Studies -
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Targets for building types and climates Case studies + status Conceptual design forum observe the case study construction Monitoring of the case studies Final design guidelines Document the case studies
-
Subtask C
Subtask D
Software Development and Analysis Methods
Documentation and Dissemination
Simple calculation tools Energy audit procedures Design tool evaluation group Operating procedures
Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
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Web site Articles and practice publications Newsletters Collection of published articles
25 Case Studies from 10 Countries View
country
case study
View
school in Stuttgart (EROS)
Germany
D2: Bertolt-Brecht-School in
Greece
D1: Exemplary Retrofitting of a
country
case study GR1: Chemical Engineering building NTUA, Athens GR2: University of Ionnina
Dresden D3: Paul-Robeson-School in
Norway
N1: Kampen School
Leipzig
D5: University of Ulm
Denmark
DK1: Egebjerg School, Ballerup
Poland
D4: University of Stuttgart
PL1: Secondary School Swarzedz PL2: Poznan University of Technology
DK2: Enghøjskolen, Hvidovre
UK1: William Parker Com-munity
DK3: Vridsløselille School,
Secondary School
Albertslund
UK2: Hadley Junior School
Finland
SF1: Elementary School of
UK
UK3: Grove House Refurbishment
Oulujoki
UK4: George Tomlinson School,
SF2: Vihasitenkari Day Care
Bolton, Lancashire
Centre
UK5: Ketley Town Junior School
FR1: Louise Labe secondary
US1: Wausau West High School,
France
USA
school FR2: Gambetta professional high school
IEA ECBCS Annex 36 Energy Concept Adviser
Sullivan County, TN US2: University of New Hampshire
Energy Technologies by Case Study Overview Energy technologies
Total Windows
15
Insulation materials & systems
13
Over-cladding systems
1
Doors
6
Heating installations
8
Domestic hot water installations
5
Energy sources
11
Control systems
14
Natural ventilation systems
10
Mechanical ventilation systems
8
Hybrid ventilation systems
7
Control & information systems
12
Building envelope
Heating systems
Ventilation systems
IEA ECBCS Annex 36 Energy Concept Adviser
Energy Technologies by Case Study Overview Energy technologies
Total Shading & glare protections
8
Cooling systems
5
Air-conditioning systems
3
control systems
5
Lighting systems
11
Light & electrical
Electrical appliances
7
appliances
Daylight technologies
8
Control systems
10
Energy audit techniques
6
Commissioning
1
Education & training
2
Non-investment measures
2
Solar control & cooling
Management
IEA ECBCS Annex 36 Energy Concept Adviser
Project aims Project aims can be divided into 3 main groups: • holistic approach with several implemented energy saving technologies, high energy savings and less focus on short payback times • cost-effective approach with fewer technologies and smaller savings • focus on existing problems like indoor comfort, air-quality, lighting comfort. Energy savings as a positive side effect Energy savings: • as high as 75 % heating (German and Danish projects with 200-280 kWh/m²a before and 50-90 kWh/m²a after the retrofit) and 100 % electricity (Greek case study with PV-panels) • UK and US projects with rather modest savings (8-20 % heating and 15 % electricity) but short paybacks
IEA ECBCS Annex 36 Energy Concept Adviser
Energy Savings
IEA ECBCS Annex 36 Energy Concept Adviser
Energy Savings
IEA ECBCS Annex 36 Energy Concept Adviser
Ventilation Strategies Different countries follow different ventilation strategies in the projects. Comparison of school projects: Finland
Focus on indoor air quality, mechanical ventilation with heat recovery
Norway
Tendency to remove mechanical ventilation and replace it with natural hybrid ventilation,
Denmark
supported by fans if necessary - natural ventilation by opening the windows, can be supported by an indoor air quality visualisation
Germany
- natural ventilation with pre-heating/pre-cooling by atria - natural ventilation through shafts into the classrooms and from there to corridors, supported by fans - minimum air-change rate provided by a mechanical ventilation system
France
- natural ventilation by opening the windows
Poland
Ventilation by opening the windows Retrofit projects dealt not with ventilation strategies, but schools are mainly ventilated by
UK
US
opening the windows with sometimes mechanical ventilation by fans or draft support
Ventilation through the windows, in one case additional mechanical ventilation system with heat recovery
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School, Ballerup, Denmark
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School, Ballerup, Denmark
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Air Intake
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Air Distribution in the Classrooms
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Common Space
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Ventilation Chimney
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Preheated Air by Solar Wall
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School – Daylight Lanterns
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Egebjerg School - Energy Savings 200 160 120 80 40
Electrical Energy Consumption
0 Before Retrofit
After Retrofit
Electrical Energy Consumption [ kWh/m²a ]
Heating Energy Consumption [ kWh/m²a ]
Heating Energy Consumption
40 30 20 10 0
IEA ECBCS Annex 36 Energy Concept Adviser
Before Retrofit
After Retrofit
Example: Egebjerg School – User Evaluation Evaluation of Air Quality
Perceived Air Quality [ % ]
60 50 40 reference case 30
retrofitted with natural ventilation
20 10 0 very good quite good acceptable
poor
very poor
IEA ECBCS Annex 36 Energy Concept Adviser
Example: Natural Ventilation – IAQ Visualisation
IEA ECBCS Annex 36 Energy Concept Adviser
Structure of Annex 36 Subtask A Selection and Analysis of Existing Information -
Motivation of decision makers Building typology Design parameters and regulations Technologies Energy benchmarks Economic performance Gaps in knowledge Documentation
Subtask B Case Studies -
-
Targets for building types and climates Case studies + status Conceptual design forum observe the case study construction Monitoring of the case studies Final design guidelines Document the case studies
-
Subtask C
Subtask D
Software Development and Analysis Methods
Documentation and Dissemination
Simple calculation tools Energy audit procedures Design tool evaluation group Operating procedures
Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
-
-
Web site Articles and practice publications Newsletters Collection of published articles
What are the reasons why the Energy Concept Adviser was developed? •
high energy consumption in educational buildings (nursery schools, schools, universities,…)
•
decision makers are often not qualified enough informed
•
many different factors for a high energy consumption building itself, heating system, ventilation, lighting, controls, (cooling)
•
an estimation of investment costs and the potential of energy savings not possible without tools
IEA ECBCS Annex 36 Energy Concept Adviser
ECA - Structure Recommendations Solutions for existing problems e.g. IAQ, glare, high energy consumption
Case Study Viewer
Retrofit Measure Viewer
Collection of exemplary retrofittings of educational buildings sorted by country and building type
Collection and description of retrofit measures
Benchmarking Comparison of the consumption of the own building with the typical average consumption of the country
Retrofit Concept Development Starting with a building type you are able to analyze different retrofit measures on your own building. You can create different concepts and look on the energy relevant results as well as on the economic calculations
Auditing & Monitoring Kulu and Auditing report
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
IEA ECBCS Annex 36 Energy Concept Adviser
Information
http://www.annex36.com/
IEA ECBCS Annex 36 Energy Concept Adviser
