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针对目前工程上常用的全玻璃真空管式集热系统的使用缺点和局限性,以某办公楼工程为例介绍了一种闭式U型管式太阳能系统在集中热水供应中的应用,对系统设计、运行原理进行了简要介绍。根据热经济学和工程经济学原理,综合分析了系统在实际工程中的供热成本、财务内部收益率、投资回收期等指标,结果表明U型管式太阳能系统比传统燃气锅炉系统的供热成本更低,具有较高的经济效益和投资回报。
In view of the shortcomings and limitations of all-glass vacuum tube heat collecting system commonly used in engineering at present, this paper introduces the application of a closed U-tube solar energy system in centralized hot water supply by taking an office building project as an example, Design, operation principle is briefly introduced. Based on the principles of thermal economics and engineering economics, this paper synthetically analyzes the heating system cost, financial internal rate of return, payback period and other indicators in the actual project. The results show that the U-tube solar system is more energy efficient than the traditional gas-fired boiler system Lower costs, with high economic returns and investment returns.