At the end of this paper, the result of the research is applied to a design of solar hot water system in a building and the efficiency of this system was analyzed.

并将分析结果应用于一工程实例的太阳能热水系统的设计，同时对其做了节能效益分析。

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Adopt new type of hot water pump, end-steam recycle; good energy efficiency benefit;

采用新型热水泵，尾汽回收再利用，节能效果好；

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Secondly, when considering end-to-end efficiency, it is much less energy-intensive to heat water by direct use of natural gas on-site, rather than by using that natural gas to first make electricity that is used to heat water because of the large conversion losses at power plants.

FORBES: To Conserve Energy - Conserve Water