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. 2021 Mar 11;14(6):1356. doi: 10.3390/ma14061356
Nomenclature
A surface area (m2)
c specific heat (J/kg·K)
ΔhSL latent heat (J/kg)
k overall heat transfer coefficient (W/m2·K)
l length (m)
m˙ mass flow rate (kg/s)
M mass (kg)
R thermal resistance (K/W)
E thermal energy (J) (kWh)
Q˙ heat flow rate (W)
T temperature (K) (°C)
α heat transfer coefficient (W/m2·K)
τ time (s) (h)
Subscripts
1 inlet
2 outlet
a surroundings
c condensation
e evaporation
f floor, ceiling
h cooling ceiling
i indoor air
in insulation
m modelled parameter
τ time (s) (h)
o window
w wall
Abbreviations
EER energy efficiency ratio
HTF heat transfer fluid
ITES ice thermal energy storage
LHTES latent heat thermal energy storage (with PCM)
PCM phase change material
PI proportional-integral controller
TES thermal energy storage