One Solar Heating and Hot Water Supplying Combined System for Rural Area Buildings
Abstract
Based on the actual situation of Chinese rural area buildings, we designed one kind of solar heating and hot water supplying combined system, which integrated all-glass vacuum tubes solar air collector and soil heat storage system. The system comprised solar air collecting system, hot air transmission system, soil heat storage system and domestic hot water system. The solar air collecting system provided hot air through hot air transmission system, the hot air transmission system could change hot air flow direction -in heating season, connected to soil heat storage system, supplied heating for room; in non-heating season, connected to domestic hot water air-water heat exchanger, supplied hot water while enhanced indoor and outdoor air convection, so that reduced the indoor temperature. The system features were: 1. Solving overheating in non- heating season and freeze in winter of the traditional solar hot water systems; 2. Usage of soil heat storage reducing investment and construction costs; 3. Heat dissipation was mainly through radiation, so the thermal comfort was greatly improved compared with all-air heating; and 4. It could realize full year effective usage of the solar energy.
Keywords
Keywords：rural area buildings, Solar air collector, Soil heat storage, Solar heating, Domestic hot water