Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System

Table 6

Surface heat transfer coefficients from [2, 14, 15].

Reference	Category		Total heat transfer coefficient
			Heating	Cooling
[2] (low temperature heating and high temperature cooling, Guidebook number 7, REHVA)	Surface type	Floor	11 W/m^2K	7 W/m^2K
		Wall	8 W/m^2K	8 W/m^2K
		Ceiling	6 W/m^2K	11 W/m^2K
[14] (ASHRAE Ch. 26 Heat, Air, and Moisture Control in Building Assemblies—Material Properties)	Direction of heat flow	Upward	9.26 W/m^2K
		Horizontal	8.29 W/m^2K
		Downward	6.13 W/m^2K
[15] (Code for Energy-Efficient Building Design in South Korea)	Surface type	Floor/ceiling	11.63 W/m^2K
		Wall	9.09 W/m^2K