全玻璃真空管式太阳热水器热性能研究(三)——日平均效率的影响因素分析

Thermal Performance Study on the All-glass Evacuated Tubular Water Heaters(Ⅲ)——Analysis of accessible factors on the daily average efficiency

分析了时令因素 (晴天、时日 )、结构因素 (热水器安装倾角、热损系数、水箱容水量、玻璃透过率、吸收涂层的吸收率 )和运行因素 (初始水温 )对真空管太阳热水器日平均效率的影响 ,为进一步进行真空管式太阳热水器的参数优化奠定了基础 .

Analyzed effects on the all-glass evacuated tubular solar water heaters from seasonal factors (sunny day, seasons), anatomic factors(inclination of heaters, average heat loss factor, water capacity of water tank, transmittance of glass and absorplance of absorbing coatings) and operating factors(original temperature of water). It laid a foundation for further work that make optimum of all-glass evacuated tubular solar water heaters.