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Saint-Gobain Glass India Ltd
Role of Glass in Energy EfficientBuildings
- From the ECBC Perspectie
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Structure
Building Enelope
Glass Performance Re!uirement
"igh Performance Gla#ing
Conclusion
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ECBC
Building Enelope $%alls& Roofs& %indo'(
Lighting $Indoor ) *utdoor(
"eating +entilation ) ,C $"+,C( system
Serice 'ater heating and pumping
Electrical systems $po'er factor&transformer(
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Glass .aylight for interiors
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Glass
Blending of interiors ) e/teriors
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Glass : building envelope light weight with better seismic
performance as compared
to traditional envelopes:lighter super structure and thus
lighter foundation
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ECBC Compliance ,pproach
Prescriptiecomponent based approach$specs gien for each(
0rade *ffsystem based approach $trade offbet'een performance of
e!uipment(
Performance 1ethod%hole Building .esign,nalysis ,pproach $oerall
building energyefficiency(
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2ey Performance Factors
S"GC or SF Solar "eat Gain Coefficient orSolar Factor
3 +alue
Light 0ransmission
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3+ +isible Far Infra Red4ear Infra Red
567 587 9: ;
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incident
solar
radiation
1# 2#
reflected
energyreemitted
energy
reemitted
energy
directly transmitted
energy
"eat gain
due to .irect
solar radiation
directly !
reemitted energy
" Solar Factor
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,rea = > m= >oC 0
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Prescriptie
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Climatic#one map ofIndia
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Compliance Re!uirement "eat Gain
through gla#ing
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%%R %indo' to 'all ration
6:1
>91
>@1
%&&2'&&
%&&
%%R = 9(@$6:>9(91
>@1
%&&2'&&
%&&
%%R = 9(@$6:>9(
