ck sustainable communities in tropics - mgbc 1/workshop a/day1 - workshop a … · sustainable...

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


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


• 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?



Energy Efficiency


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


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!


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



Green Energy


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


Solar Air-Conditioning

Using Absorption Chillers

Using Liquid Desiccant


Building Integrated Photovoltaic


Algae – Renewable Energy



Water Efficiency


Rain Water Harvesting


Air to Water


Ozone or UVWater Treatment

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



Waste Minimisation


REDUCE, RE-USE, RECYCLE

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


Grey & Black Water Recycling


BioGas – Renewable Energy



The Roadmap

Green Community


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




Thank You!

[email protected]

ck sustainable communities in tropics - mgbc 1/workshop a/day1 - workshop a … · sustainable...

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