Page 71 - GRIHA Manual Volume V - Introduction to National Rating System
P. 71
64 Griha Manual: Volume 5
14.1.3 Perform hourly calculations to show that thermal comfort conditions in
non-airconditioned areas (living spaces*) are as speciied in Table 14.2 are met for 90%
of all occupied hours for buildings in composite, moderate, and hot and dry climate,
and for 60% of all occupied hours for buildings in warm and humid climate.
Table-14.2 Thermal comfort conditions for non-AC buildings
Temperature less than 33 ºC
Relative humidity less than 70%
14.1.4 Show that the predicted energy performance of energy systems in a building, under
a specified category, is less than the benchmarked energy performance figure. the
energy systems include air-conditioners, indoor lighting systems, water heaters, air
heaters, and air circulation devices.
14.1.5 the annual predicted energy performance of energy systems in a fully air-conditioned
building (for day and 24 hour use) should not exceed the benchmarked energy
performance figures mentioned in table 14.3.
Table 14.3 Benchmark energy performance index (EPI) for air-conditioned buildings
Benchmark EPI for air-conditioned commercial buildings
Climate Classiication EPI (kWh/ m /year) EPI (kWh/ m /year)
2
2
Daytime occupancy 24-hour occupancy
5 days a week 7 days a week
Moderate 120 350
Composite/warm and humid/hot and dry 140 450
Benchmark EPI for air-conditioned residential buildings
Composite/warm and humid/hot and dry 200
* Non-airconditioned spaces are classiied into living and non living spaces. The examples of non living spaces are parking area, boiler room,
mechanical room, generator room, etc.
14.1.6 the annual predicted performance of energy systems in a non-air-conditioned building
(for day and 24 hour use) should not exceed the benchmarked energy performance
figures mentioned in table 14.4.
Table 14.4 Benchmark energy performance index (EPI) for non–air-conditioned buildings
Climate classiication EPI (kWh/m /year) EPI (kWh/m /year)
2
2
Daytime occupancy 24-hour occupancy
5 days a week 7 days a week
Non-air-conditioned buildings
Moderate 20 85
Composite/warm and humid/hot and dry 25 100
14.1.7 in a building that includes both air-conditioned and non-air-conditioned areas, the
annual predicted energy consumption of energy systems should not exceed the
benchmarked energy consumption limits listed in table 14.5.
Note: In a building that includes both air-conditioned and non-air conditioned areas, the annual energy performance of energy systems should not
exceed the benchmarked energy performance limits.
14.1.3 Perform hourly calculations to show that thermal comfort conditions in
non-airconditioned areas (living spaces*) are as speciied in Table 14.2 are met for 90%
of all occupied hours for buildings in composite, moderate, and hot and dry climate,
and for 60% of all occupied hours for buildings in warm and humid climate.
Table-14.2 Thermal comfort conditions for non-AC buildings
Temperature less than 33 ºC
Relative humidity less than 70%
14.1.4 Show that the predicted energy performance of energy systems in a building, under
a specified category, is less than the benchmarked energy performance figure. the
energy systems include air-conditioners, indoor lighting systems, water heaters, air
heaters, and air circulation devices.
14.1.5 the annual predicted energy performance of energy systems in a fully air-conditioned
building (for day and 24 hour use) should not exceed the benchmarked energy
performance figures mentioned in table 14.3.
Table 14.3 Benchmark energy performance index (EPI) for air-conditioned buildings
Benchmark EPI for air-conditioned commercial buildings
Climate Classiication EPI (kWh/ m /year) EPI (kWh/ m /year)
2
2
Daytime occupancy 24-hour occupancy
5 days a week 7 days a week
Moderate 120 350
Composite/warm and humid/hot and dry 140 450
Benchmark EPI for air-conditioned residential buildings
Composite/warm and humid/hot and dry 200
* Non-airconditioned spaces are classiied into living and non living spaces. The examples of non living spaces are parking area, boiler room,
mechanical room, generator room, etc.
14.1.6 the annual predicted performance of energy systems in a non-air-conditioned building
(for day and 24 hour use) should not exceed the benchmarked energy performance
figures mentioned in table 14.4.
Table 14.4 Benchmark energy performance index (EPI) for non–air-conditioned buildings
Climate classiication EPI (kWh/m /year) EPI (kWh/m /year)
2
2
Daytime occupancy 24-hour occupancy
5 days a week 7 days a week
Non-air-conditioned buildings
Moderate 20 85
Composite/warm and humid/hot and dry 25 100
14.1.7 in a building that includes both air-conditioned and non-air-conditioned areas, the
annual predicted energy consumption of energy systems should not exceed the
benchmarked energy consumption limits listed in table 14.5.
Note: In a building that includes both air-conditioned and non-air conditioned areas, the annual energy performance of energy systems should not
exceed the benchmarked energy performance limits.
