Question:-
For an office building the outdoor design conditions are 45°C dbt and humidity ratio of 0.015. The indoor design conditions are 25°C dbt and 0.01 humidity ratio. The supply air state is 15°C dbt and 0.007 humidity ratio. If the supply air flow rate is 1000 m3/min and fresh air flow rate is 100m3/min, room sensible ands room latent head loads are, respectively
Option (A)
408 kW and 400 kW
Option (B)
408 kW and 150 kW
Option(C)
204 kW and 400 kW
Option(D)
204 kW and 150 kW
Correct Option:
(D)
Question Solution:
SHL = 0.0204 x cmm x DT
= 0.0204 x 1000 x (25-15)
= 204 kW
LHL = 50 cmm x DW
= 50 x 1000 x (0.01-0.007)
= 50 x 1000 x 0.003
= 150 kW
question-answer-faq-9437