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Solar Energy Utilization of a Residential Radiant Floor Heating System 住宅地板辐射供暖系统的太阳能利用
开发了一个试验室的模拟模型,该模型考虑了内部热增益、渗透、热包壳传热和太阳效应。房屋模型包括地下室、一楼、二楼、阁楼和车库的分区。房屋的一楼和二楼采用地板辐射供暖系统供暖。辐射回路由水供给,水首先由太阳能储水箱中的太阳能加热,然后由锅炉加热。开发了太阳能辅助地板辐射供暖系统所有元件的详细基于组件的网络模型,并将其连接到房屋热力模型。 模拟结果表明,使用芝加哥天气文件,使用收集面积为23.04 m2的太阳能,可以满足房屋一楼和二楼高达22%的热需求。当辐射回路的供电温度根据室外温度重置控制策略而不是恒定的供电温度变化时,发现太阳能部分增加了17%。然而,太阳能部分的增强与系统循环泵辅助用电的增加有关。 引文:内华达州拉斯维加斯ASHRAE会议论文
A simulation model for a test house is developed that accounts for internal heat gains, infiltration, thermal envelope heat transfer, and solar effects. The house model consists of zones for the basement, first floor, second floor, attic, and the garage. The house first and second floors are heated using a radiant floor heating system. The radiant loops are fed with water which is first heated using solar heat from a solar storage tank and then using a boiler. A detailed component based network model of all the elements of the solar assisted radiant floor heating system is developed and then linked to the house thermal model. The simulation results show that, using a Chicago weather file, up to 22% of the heat demand of the house first and second floors can be met using collected solar energy with a collector area of 23.04 m2. The Solar Fraction is found to increase by 17% when the supply temperature to the radiant loops is varied according to an outdoor temperature reset control strategy as opposed to a constant supply temperature. This enhancement in the Solar Fraction is however associated with an increase in the auxiliary electricity consumption of the system circulation pumps.
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