The bypass factor factor of heating coil is 0.4. Determine DBT, WBT and RH of the air leaving the coil and the amount of sensible heat added per kg of air

Subject:- Refrigeration and Air Conditioning

Topic:- Design of air conditioning systems

Difficulty:- Low

Given $T_d1=15℃,T_w1=10℃,T_d3=40℃$,BPF=0.4

Dry bulb temperature of air leaving the coil:

$BPF=\frac{T_d3-T_d2}{T_d3-T_d1}$

$0.4=\frac{40-T_d2}{40-15}$

$T_d2=30℃$

Wet bulb temperature of the air leaving the coil:

From psychrometric chart we can find out the WBT i.e. the corresponding WBT for DBT at point 2:

$T_w2=16℃$

Relative humidity can also be find out from the …