( 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.
• Thermal Bridge free designs
• Urban Heat island effect mitigation.g
• Day Lighting & North Lighting.
• Shading & Insulation• Shading & Insulation.
Day Lighting & North Lighting.Day Lighting & North Lighting.
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
• Recycled –Heating & Cooling.
• Use of latent –heat and cold.
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
• Task and Ambient LightingTask and Ambient Lighting.
• Lux Based + Day Lighting Techniques.
f ffi i i h S
• Use of Efficient Light Sources.
• Control of Light Sources as per Usage.
• BAU – on Lux based requirements.
• Consumption – Key to design
Consumption Key to design.
No major expenses on Controls.No major expenses on Controls.
• No – big expenses on Building ManagementNo big expenses on Building Management
• 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.
• HVAC / Space Conditioning.HVAC / Space Conditioning.
• Access• Access.
• Fresh Air content.
S ill• Surveillance.
• Energy Metering.
• Automated Applications for Lighting and
Case Study.Pearl River Tower
Owner China National Tobacco Corporation
Architect Gordon Gill
Skidmore, Owings and Merrill
Guangzhou Chengzong Design
Developer Rowan Williams Davies & Irwin Inc.
Structural engineer Skidmore Owings and Merrill
Main contractor Shanghai Construction Group
Site Area: 10,635 m2 (114,470 sq ft)
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
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.
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