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为了研究多因素对紧凑式全玻璃真空管热水系统热性能的影响,搭建两套参数一致的全玻璃真空管热水系统试验台,在相同的环境条件下同时进行试验,试验结束后利用多元变量回归方程进行对比分析,结果表明:当积尘量和日均集热量均不变时,环境温度每增加1℃,贮热水箱内水所含的相对得热量和单位轮廓采光面积的相对日有用得热量都平均增加0.003;当环境温度和日均集热量均不变时,积尘量每增加1 g,贮热水箱内水所含的相对得热量和单位轮廓采光面积的相对日有用得热量都平均减小0.013;当环境温度和积尘量均不变时,日均集热量每增加1 MJ,贮热水箱内水所含的相对得热量和单位轮廓采光面积的相对日有用得热量都平均增加0.003。
In order to study the influence of many factors on the thermal performance of a compact all-glass vacuum tube hot water system, two sets of all-glass vacuum tube hot water system test rigs with the same parameters were set up and tested under the same environmental conditions at the same time. The results show that when the amount of accumulated dust and the average daily quantity of heat are constant, the relative heat quantity and the unit daylighting area contained in the water in the hot water storage tank are relatively useful for every 1 ℃ increase in ambient temperature The average heat gain is 0.003; when the ambient temperature and the daily average heat are unchanged, the amount of dust for each additional 1 g, the relative heat content of water contained in the hot water tank and the relative silhouette of the light area of the day is useful The average heat quantity is reduced by 0.013; when the ambient temperature and the amount of dust are the same, the relative daily calorific value of the water contained in the hot water storage tank and the relative daylighting area of the profile are useful for every 1 MJ increase in the daily average heat gain The average amount of heat is increased by 0.003.