AC	air compressor
AT	air turbine
B-LAES	baseline LAES
BCAW	basic concentration ammonia–water
CAES	compressed air energy storage
HCAW	high-concentration ammonia–water
HE	heat exchanger
HMT	high-temperature methane tank
HOT	high-temperature thermal oil tank
HPT	high-temperature propane tank
HWS	hot water supply
HWT	high-temperature water tank
KC	Kalina cycle
KC-LAES	integrated energy system based on LAES and KC
KCON	KC condenser
KEVA	KC evaporator
KP	KC pump
KPH	KC preheater
KR	KC regenerator
KSEP	KC separator
KSH	KC superheater
KT	KC turbine
LAES	liquid air energy storage
LAP	liquid air pump
LAT	liquid air tank
LCAW	low-concentration ammonia–water
LMT	low-temperature methane tank
LOT	low-temperature thermal oil tank
LPT	low-temperature propane tank
LWT	low-temperature water tank
MIX	mixer
PHES	pump hydro energy storage
RTE	round-trip efficiency
SEP	separator
TV	throttle valve
Symbols
E	exergy (MW)
ex	specific exergy (kJ/kg)
h	specific enthalpy (kJ/kg)
m	mass flow rate (kg/s)
P	pressure (MPa)
Q	energy (MW)
s	specific entropy (kJ/kg·K)
T	temperature (K)
W	power (MW)
x	ammonia concentration (%)
η	efficiency (%)
γ	ratio (%)
Streams
A	air
C	cooling water
K	KC working fluid
M	methane
O	thermal oil
PR	propane
WA	water
Other Subscripts
CH	compression heat
EVA	evaporating
ex	exergy
imp	improvement
LIQ	liquefaction ratio
vap	vapor