A Parametric Investigation on Energy-Saving Effect of Solar Building Based on Double Phase Change Material Layer Wallboard

Table 1

Thermo-physical properties of the wallboard materials [18].

Materials	cp; (kJ/kg·°C)	(W/m·°C)	(kg/m^3)	L; (kJ/kg)	Tm; (°C)	D; (m)
Concrete	0.8	2.1	2400	—	—	0.24
Insulation	2.0	0.2	850	—	—	0.03
PCM 1/PCM 2	2.0	0.1~2	850	200	26–29	0.03