Abstract
This paper describes the basic equations for studying the room temperature variation of multi-room and the calculation method using response factors. It is the main point that the basic equations take account of the heat transfer due to the mutual radiation among the indoor surfaces. Also this paper shows the theoretical study with the weighting function. These equations which are introduced using the matrix calculation, show the relation of room temperature, surface temperature, heating load and so on. On the other hand, in this calculation method, the thermal conductance of the thin walls and number of air changes can be modified at each time. In this method, unknown variables are the air temperatures of each room, the inner surface temperatures of each outside wall and the surface temperatures of each inside wall. The outer surface temperatures of outside wall are given by the sol-air temperature method because of reducing the number of variables.
