Heat transfer and air movement in the ventilated air gap of passive solar heating systems with regulation of the heat supply

The mathematical models were developed on the basis of the analysis of the heat transfer and air movement and therefore they can be complemented and improved depending on the constructive and climatic conditions. Examples of comparative calculations of the heat transfer and air movement in the air gap of the conventional Trombe wall and the Trombe wall equipped with a venetian blind for regulation of heat supply are presented. For the winter period the comparative calculations were carried out with a different intensity of solar radiation.