Page 70 - GRIHA Manual Volume V - Introduction to National Rating System

Evaluation procedure 63

CRIteRIon 14

optIMIze eneRGy peRfoRMAnCe

of buIldInG wItHIn speCIfIed
CoMfoRt lIMIts

GRIHA-speciic information
Objective

to optimize use of energy systems in buildings that maintain a specified indoor climate conducive
to the functional requirements of the buildings.
14.1 Commitment

14.1.1 follow mandatory compliance measures (for all applicable buildings) as recommended
in the eCbC-2007 of the bee, government of india.
14.1.2 Perform hourly calculations to show that in air-conditioned areas, the thermal comfort
conditions as specified in national building Code-2005, biS, are met for 100% of all
occupied hours.
Table 14.1 Inside design conditions for different spaces of buildings to meet thermal comfort standards
Sr. No. Category Inside design conditions
Summer Winter
(1) (2) (3) (4)
DB 23°C–26°C DB 21°C–23°C
1 Restaurants
RH 55%–60% RH not less than 40%
DB 23°C–26°C DB 21°C–23°C
2 Ofice buildings
RH 50%–60% RH not less than 40%
DB 23°C–26°C DB 21°C–23°C
3 Radio and television studios
RH 45%–55% RH not less than 40%
DB 23°C–26° C DB 21°C–23°C
4 Departmental stores
RH 50%–60% RH not less than 40%
DB 23°C–26°C DB 23°C–24°C
5 Hotel guest rooms
RH 50%–60% RH not less than 40%
DB 23°C–26°C DB 23°C–24°C
6 Class rooms
RH 50%–60% RH not less than 40%
DB 23°C–26°C DB 23°C–24° C
7 Auditoriums
RH 50%–60% RH not less than 40%
8 Recovery rooms DB 24°C–26°C
RH 45%–55%

9 Patient rooms DB 24°C–26°C
RH 45%–55%
10 Operation theatres DB 17°C–27°C
RH 45%–55%
Source: Clause 4.4.3 of NBC 2005