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太阳能热水系统设计中集热器面积、水箱容积、最佳倾角是相互影响的,在辅热量最小原则下,三者还没有一个系统的组合优化方案。为研究三者的组合关系,建立完整的太阳能热水系统模型,提出一套系统的组合优化方法。综合考虑技术、经济因素对系统性能的影响,提出净节省费用的概念,并依据辅热量最小原则与净节省费用最大原则分别给出两套组合优化方案,进而对两套方案进行分析。为太阳能热水系统中集热器面积、水箱容积、最佳倾角的合理设计提供依据。
In the design of solar hot water system, the area of collector, the volume of water tank and the optimum dip angle affect each other. Under the principle of minimum auxiliary heat, the three systems do not have a systematic optimization plan. In order to study the combination of the three, a complete model of solar hot water system was established and a set of systematic optimization method was proposed. Considering the impact of technical and economic factors on the system performance, the concept of net saving cost is put forward. Two sets of combined optimization schemes are respectively given according to the principle of minimum auxiliary heat and net saving cost, and then the two sets of schemes are analyzed. For the solar hot water system in the collector area, the tank volume, the best angle to provide a reasonable basis for the design.