Symbols
h	specific enthalpy (kJ/kg)
hfg	latent heat of vaporization (kJ/kg)
GOR	gain output ratio
MR	mass flowrate ratio
ṁw	feedwater mass flowrate (kg/s)
ṁpw	freshwater mass flowrate (kg/s)
ṁb	brine mass flowrate (kg/s)
ṁa	dry air mass flowrate (kg/s)
$\dot{Q}$ in	rate of heat input (kW)
Qr	heat rate input ratio [$\dot{Q}$in,water/$\dot{Q}$in,air] (-)
s	specific entropy (kJ/kg.K)
$\dot{S}$ gen	entropy generation rate (kW/K)
$\dot{s}$ gen	specific entropy generation (kJ/kg.K)
T	temperature (C)
ε	effectiveness (-)
ω	humidity ratio (kgw/kga)
Subscripts
a	air
d	dehumidifier
h	humidifier
ht	heater
Hum./Deh.	humidifier/dehumidifier
w	water