寒冷地区村镇住宅建筑单热源供热系统设计与优化

对不同规模的村镇住宅建筑供热系统优化设计方案与全生命周期内的经济性展开研究.首先,采用TRNSYS软件模拟得到60~2 000 m²范围内不同供热面积村镇住宅建筑的动态热负荷,并对太阳能、电锅炉、地源热泵及空气源热泵4种不同热源供暖系统的控制运行情况进行模拟,得到不同热源供暖系统在不同供热面积下的优化设计方案.在此基础上,对不同热源供暖系统在全生命周期内的经济性进行对比分析,得到不同村镇住宅建筑供热面积下的热源推荐方案.结果表明:对于不同热源供暖系统的总费用,电锅炉供暖系统最大,太阳能供暖系统最小,太阳能供暖系统总费用比电锅炉供暖系统减少近65%.

Design and Optimization of Single Heat Source Heating System for Rural Residential Buildings in Cold Regions

The optimal design scheme of heating system for rural residential buildings of different sizes and the economy in the whole life cycle are studied. The dynamic thermal load of rural residential buildings with 60~2 000 m² heating areas is obtained by TRNSYS software, the control operation of four different heat source heating systems are simulated,such as solar energy, electric boiler, ground source heat pump and air source heat pump, the optimal design scheme of different heat source heating system under different heating area conditions is obtained. On this basis, the economy of different heat source heating systems in the whole life cycle is compared and analyzed, the recommended heat source schemes under different heating areas of rural residential buildings are obtained. The result shows that among 4 heating systems,the total cost of the electric boiler heating system is maximum, the total cost of the solar energy heating system is minimum. The total cost of the solar energy heating system is nearly 65% less than that of the electric boiler heating system.