Mathematical Model of a Trombe Wall in Combined Heat Supply System

Abstract

This article is devoted to the problems of Trombe wall application in the combined heat supply system of a building. The main problem of Trombe wall application in the cold climatic conditions is heat losses. This article represents a new design solution for the Trombe wall, which allows to reduce heat losses with no impact on accumulating capacity of the massive wall. The main innovation is application of a glass blocks instead of the ordinary glass panels. A mathematic model of a Trombe wall with a glass block has been developed, which takes into account the radiative and convective heat-mass-exchange between air of a room and a Trombe wall. Moreover, the developed mathematical model allows to carry out a numerical evaluation of Trombe wall energy contribution into the combined heat supply system of a building.