7th Asian School

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Low Energy Architecture:
An Overview
Ar. Dr. Lim Chin Haw
Puri Pujangga
Universiti Kebangsaan Malaysia (UKM)
National University of Malaysia
Date 17 June 2014
7th Asian School on Renewable Energy
Senior Research Fellow
Solar Energy Research Institute UKM
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Drivers for Low Energy Architecture
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2. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Energy Demand by Population
3
POPULATION INCREASE ENERGY DEMAND
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
ASEAN Energy Per Capita
4

3. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Malaysian Urban Population
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Building Sector highest carbon emission
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
CO2 emission in Peninsular Malaysia
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Green Building Energy Index
8
ENERGY

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
BEI for Building Typologies
9
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Towards Nett Zero Energy Building
1
0
PASSIVEDESIGN&EE
RENEWABLE
ENERGY
BASELINE PASSIVE DESIGN & EE
100%
30%
0%
NETT ZERO ENERGY BUILDING

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Heat Gain in Building
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1
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
A Holistic Approach
1
2
Think “Passive” First & “Active”
Second !!
Passive
1st 2nd

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Passive Design & Active Systems
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3
• Passive Design
• Solar Shading Devices
• Natural ventilation
• Evaporative cooling
• Insulation
• Building Orientation
• Low ‘U’ value materials
• Daylighting
• Selective coating glazing
• Responsive building envelope
• Landscape / greening
• Active Systems
• Photovoltaic system
• Wind power system
• Hydro power system
• Hybrid systems
• Solar assisted A/C system
• Energy savings appliances
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
1
4

8. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Cost of implementing Low Energy Architecture
1
5
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
BREAKDOWN OF ELECTRICITY CONSUMPTION OF TYPICAL DOUBLE STOREY TERRACE HOUSE
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6
SOURCE: CETDEM
Reduce cooling load = Reduce heat gain in building

9. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
1. Orientation of buildings
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7
Orientation
• Sun path Diagram analysis
• Reduce wall surfaces & opening facing
East & West (reduce heat gain)
• Building to face North – South Orientation
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
2. Glazing / windows
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8

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
1
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Long wave (Infrared): 760 to 1 million nanometers
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Glazing / Windows
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0

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Spectral Selective Glazing
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1
Spectral Selective Glazing Technology
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Low E glass windows
2
2

12. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Summary of Various Glazing Technology
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3
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
3. Shading Device
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4

13. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Shading devices
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5
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
4. Shade and Daylighting
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Shading and Provide Daylighting

14. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Combined Shading and Daylighting
2
7
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
5. Landscape as shading device
2
8

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
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9
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Landscape as shading
3
0
SOURCE: NUS

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Landscape as shading
3
1
SOURCE: NUS
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
6. Roof Thermal Resistance / insulation
3
2

17. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Roof insulation
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3
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Reflective insulation
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4
Reflective insulation
Without Reflective
Insulation
With Reflective
insulation

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
7. Natural ventilation
• To enhance comfort ventilation
• To reduce heat gain through convection
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5
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Types of natural ventilation
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6
Stack effect / Buoyancy
Wind driven ventilation
Cross ventilation

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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Combined daylight and natural ventilation
3
7
SUNPIPE
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
8. Reflectance of Exterior Paints for building
3
8

20. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Green building materials
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9
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Computer simulation tools
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0
• IES SOFTWARE
• ECOTECT
• ENERGYPLUS
• FLOVENT CFD
• ANSYS FLUENT CFD
• STAR CCM+
• FLOTERM

21. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Cost transfer
4
1
• Total cost same
• Engineering costs less
• Invest in Architecture
• Active to passive
• Fragile to robust
• Longer life
• Less cost over life
• Simpler
Cost Transfer
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Low Energy Buildings in Malaysia
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2

22. 16/6/2014
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Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
Near future trends for Low Energy Architecture
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3
Name of instructor: Ar. Dr. Lim Chin Haw
7th Asian School on Renewable Energy, Puri Pujangga UKM, Malaysia, 16th-20th June 2014
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