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SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Sustainable Communities (CK Tang & IEN)IEN Consultants, www.ien.com.my

Sustainable Communities in Tropics – The Only Way Forward

CK TangIEN ConsultantsKuala Lumpur, Malaysia

SB07, KLCC, Malaysia6 November 2007

The Only Way Forward

• Climate Change • World Population Growth

01234567

1000 1200 1400 1600 1800 2000

Bill

ions

Year

World Population

100m Sea level increase

SB07, KLCC, Malaysia6 November 2007

• Zero use of fossil fuels?

• Zero potable water use?

• Zero waste?

• Zero carbon embedded material use?

While improving the followings:

• Indoor environmental quality

• Quality of local environment

Is A Truly Sustainable Community Possible?

Using Known Technologies Today?

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Energy Efficiency

SB07, KLCC, Malaysia6 November 2007

Energy Efficient Tropical Buildings

Low Energy Office – Ministry of Energy, Green Technology and Water, Malaysia. BEI ~ 100 kWh/m2/year50% Energy Saved using Conventional Best Practice Technology

Pusat Teknologi Hijau Malaysia, Bangi, BEI ~ 70 kWh/m2/year65% Energy Saved (excluding BIPV)~100% Daylight use in Building

SB07, KLCC, Malaysia6 November 2007

Lesson Learned8 Steps for Energy Efficient Tropical Buildings

Energy Index

-30.0

-10.0

10.0

30.0

50.0

70.0

90.0

110.0

130.0

150.0

Fan

Ene

rgy

Sm

all

Pow

er

Ligh

ting

Chi

ller

Ene

rgy

Fan

Gai

n

Ligh

ting

Gai

n

Sm

all

Pow

er G

ain

Sol

ar G

ain

Ext

Con

duct

ion

Gai

n

Ppl

Gai

n

Deh

umid

Ppl

Lat

ent

Gai

n

Deh

umid

Fres

h A

ir

Fres

h A

irG

ain

kWh/

m2/

year

worst

base

mewc

Chiller Energy Breakdown

123

4

567

8 Energy Management!

SB07, KLCC, Malaysia6 November 2007

Factor 4 Buildings

• Buildings that consume only 25% Energy as compared to conventional buildings today – i.e. 50 kWh/m2/year.

• Achievable by Energy Efficient Building with– Tri-Generation or– Solar Air-Conditioning or– 100% Daylit Building

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Green Energy

SB07, KLCC, Malaysia6 November 2007

Tri-Generation or Co-Gen

Typical Power Plant

100% Gas

65%Electricity

Waste Heat & Losses

35%

Low Grade Heat for Desiccant Air-Conditioning or Domestic Hot Water

Tri-Generation

100% Gas

15%

Waste Heat & Losses

Electricity30%

55% Heat Cooling

Conventional Power Generation

A Tri-Generation System

SB07, KLCC, Malaysia6 November 2007

Solar Air-Conditioning

Using Absorption Chillers

Using Liquid Desiccant

SB07, KLCC, Malaysia6 November 2007

Building Integrated Photovoltaic

SB07, KLCC, Malaysia6 November 2007

Algae – Renewable Energy

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Water Efficiency

SB07, KLCC, Malaysia6 November 2007

Water Efficiency

SB07, KLCC, Malaysia6 November 2007

Rain Water Harvesting

SB07, KLCC, Malaysia6 November 2007

Air to Water

SB07, KLCC, Malaysia6 November 2007

Ozone or UVWater Treatment

“Tropical Daylighting” (CK Tang & G Reimann)IEN Consultants, www.ien.com.my

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Waste Minimisation

SB07, KLCC, Malaysia6 November 2007

REDUCE, RE-USE, RECYCLE

• Metal, Plastic, Paper – Recyclable• Organic waste – Compost it!

SB07, KLCC, Malaysia6 November 2007

Grey & Black Water Recycling

SB07, KLCC, Malaysia6 November 2007

BioGas – Renewable Energy

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

The Roadmap

Green Community

SB07, KLCC, Malaysia6 November 2007

A/C in Hot Humid Climate

Pure Condensate

Water

GreywaterRecycling

Blackwater

BioGasPlant

BIPV

Green Electricity Production

Energy Efficient Factor 4 Building

Tri-Gen

Organic Waste

PlasticsMetals

Incinerate

Offset Building Embodied Energy

Drinking Water

UV Sanitize

Zero Potable WaterZero Fossil Fuel

Fertilizer

Irrigation Toilet Flushing

Water Treatment

Water Efficient Washer, Taps, T

oiletries, etc.

Recyclable

Hot Water

Electric Transportation

Outside Organic Waste &

BlackwaterGlass

Non-Recyclable

Algae Plant

BioDiesel

Hybrid TransportationCO2

Treated Waste water

Zero Waste

Tri-Gen

SB10, KLCC, Malaysia, 6 May 2010

SB07, KLCC, Malaysia6 November 2007

SB10, KLCC, Malaysia, 6 May 2010

Thank You!

ck@ien.com.mywww.ien.com.my