The evaluation of heat capacity and choice of materials for short-term storage of diurnal solar heat surplus in passive solar heating systems
R. R. AvezovD. U. AbdukhamidovM. A. KuralovInternational Solar Energy Institute, Tashkent, UzbekistanE. Yu. RakhimovSh. B. ImomovKarshi Engineering Economic Institute, Karshi, Uzbekistan
ABI
Abstract
The results of numerical studies aimed to evaluate the heat capacity of short-term phase change heat accumulators applied in passive solar heating systems (PSHS) with a three-layer energy active translucent enclosure (TE) are presented. An example is given of calculation of specific (per unit of TE surface area) weight of heat accumulator using dimethyl sulfoxide, (СН3)2SO, with melting temperature 18.6°C and latent heat of phase transition 173 kJ/kg, as the heat storage agent.