This document discusses strategies for low energy buildings (LEBs), including super insulation, daylighting and north lighting, thermally active building systems (TABS), building integrated renewable energy strategies, and smart control systems. It explains the benefits of TABS and super insulation for space conditioning and energy conservation. Radiant heating and cooling principles are outlined. Case studies are presented, including the Pearl River Tower, a sustainable high-rise in Guangzhou, China that utilizes energy efficient designs like radiant ceilings, solar collectors, and photovoltaics.

1. BUILDINGS
For Future

2. Constitution
( ld )LEB( Low Energy Building)
• Architectural Specialties.
D li h i d N h Li h i• Day lighting and North Lighting.
• Super Insulation.
• Primary & Auxiliary Energy Strategies.
• Building Integrated RE Strategies.Building Integrated RE Strategies.
• TABS (Thermally Active Building Systems)
S C l S• Smart Control Systems.

4. Architectural.
• Thermal Bridge free designs
• Urban Heat island effect mitigation.g
• Day Lighting & North Lighting.
• Permaculture.
• Shading & Insulation• Shading & Insulation.

5. Day Lighting & North Lighting.Day Lighting & North Lighting.

7. Why Super Insulation ?Why Super Insulation ?
• No leaky buckets – conserve the energy that is
inside the buildinginside the building.
• No need to recreate – Heating and cooling
ievery time.
• Recycled –Heating & Cooling.
• Use of latent –heat and cold.

8. Super Insulation.

9. Why TABS ?Why TABS ?
• TABS – designed buildings use Radiant Liquid g g q
based –Heating and Cooling.
• Water is 3500 times more efficient than “forced
air systems”air systems”
• Space Conditioning –Redefined.
• No boilers / chillers / VRVs• No boilers / chillers / VRVs
• No necessity for “expensive BMS Controls”.
• No “ Suspended Ceilings”No Suspended Ceilings
• No real maintenance.
• Cheaper CAPEX cost and OPEX cost.p

10. No
Swirling air / Heat Accumulation / Draughts

12. Geothermal Pumps
RADIANT FLOOR H& C
Geothermal Pumps

13. Huge Benefits

15. PRINCIPLES OF RADIANT HEATING COOLING

16. Not only cheaper but lower C –emission too

17. Lighting.Lighting.
• Task and Ambient LightingTask and Ambient Lighting.
• Lux Based + Day Lighting Techniques.
f ffi i i h S
Task
• Use of Efficient Light Sources.
• Control of Light Sources as per Usage.
• BAU – on Lux based requirements.
• Consumption – Key to design
Ambient
Consumption Key to design.

18. Architect SpeakArchitect Speak

19. No major expenses on Controls.No major expenses on Controls.
• No – big expenses on Building ManagementNo big expenses on Building Management
Systems.
• No big boilers and chillers to control• No big boilers and chillers – to control.
• Life is easy.
• Integration with Lighting systems becomes
easier and cheaper.

20. Building Integrated Renewable Energy.

21. BIRE.

22. Integrations.Integrations.
• HVAC / Space Conditioning.HVAC / Space Conditioning.
• Lighting.
• Access• Access.
• Fresh Air content.
S ill• Surveillance.
• Energy Metering.
• Automated Applications for Lighting and
HVAC.

23. Other strategies.Other strategies.

24. All talk –LOW ENERGY

25. Case Study.Pearl River Tower
Owner China National Tobacco Corporation
Architect Gordon Gill
Skidmore, Owings and Merrill
Guangzhou Chengzong Design
Institute
Developer Rowan Williams Davies & Irwin Inc.
Structural engineer Skidmore Owings and Merrill
Main contractor Shanghai Construction Group
Specifications
Site Area: 10,635 m2 (114,470 sq ft)
Sustainability
Th b ildi i d i d ith ti i i dThe building is designed with energy conservation in mind,
including wind turbines and solar collectors, photovoltaic
cells, raised floors ventilation, and radiant heating and
cooling ceilings.
It will be arguably one of the most environmentally
friendly buildings in the world.
> The largest radiant‐cooled office building in the world
> Most energy efficient super‐tall building in the world
> The tower is an example of China’s goal to reduce the> The tower is an example of China s goal to reduce the
intensity of carbon dioxide emissions per unit of GDP in
2020 by 40 to 45 percent as compared to the level of 2005.
http://en.wikipedia.org/wiki/Pearl_River_Tower