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. 2021 Mar 31;23(4):415. doi: 10.3390/e23040415
COP air conditioning coefficient of performance
SMER specific moisture extraction rate (Amount of water removed from the air)
COMPRESSION Vapor compression cycle
Symbols:
B Exergy of the control volume (J)
B˙ Exergy rate (W)
b Specific exergy (kJ/kg)
H˙ Enthalpy rate (W)
h Specific enthalpy (kJ/kg)
m˙ Mass flow rate (kg/s)
P Pressure (kPa)
Q˙ Heat transfer rate (W)
S˙ Entropy rate (W/K)
s Specific entropy (kJ/kgK)
T Temperature (°C)
t Time (s)
V Volume (m3)
v Specific volume (m3/kg)
x mass fraction in the liquid solution (kgsolute/kgsolution)
W˙ Power output (W)
Greek letters:
η efficiency (-)
ρ specific mass (kg/m3)
subscripts:
0 reference state
absorption absorption refrigeration cycle
compression vapor compression cycle
CV control volume
d destroyed
e exit
en energy basis
evaporator evaporation unity
desorber desorber unity
ex exergy basis
i inlet