Question:-
Air is 20°C dry bulb temperature and 40% relative humidity is heated upon 40°C using an electric heater, whose surface temperature is maintained uniformly at 45°C. the bypass factor of the heater is
Option (A)
0.20
Option (B)
0.25
Option(C)
0.88
Option(D)
1
Correct Option:
(A)
Question Solution:
Given :
t1 = 20°C
t2 = 40°C
t3 = 45°C
B.P.F. = {(t3-t2)/(t3-t1)} = {(45-40) / (45-20)}
B.P.F. = 0.2
question-answer-faq-9390