A novel two-stage ejector refrigerator with mixed refrigerants
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Дата
2018
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Анотація
The energy consumption is ramping up in recent decades. Therefore, it was
very important to recover and utilize the low-grade energy, such as the solar
energy, the geothermal energy and low-temperature waste heat discharged to the
environment. The ejector system has a good prospect in this area due to its obvious
advantages :simple structure, without moving part and available for heat
sources in different temperature levels, as well as long life-span. Nevertheless, the
coefficient of performance of the ejector system is relatively low, so the technology
to optimize the ejector refrigeration cycle has been hot topics. In this report, a
novel two-stage ejector system with mixed refrigerants was proposed to improve
the efficiency of the ejector system. A separator was used to divide the working
fluid to high boiling point fluid and low boiling point fluid. The performance of the
new system was calculated and compared with other ejector systems. It was
suggested that the novel system had a higher COP than other ejector refrigeration
systems. Furthermore, it could operate at a higher condensation temperature.
When the condensation temperature continued to rise above 50℃, the new system
could still be reliable and the COP was about 0.1
Опис
A novel two-stage ejector refrigerator with mixed refrigerants / Xuehui Wang, Yifan Zhou, Yini Pan, Guangming Chen ; supervisor Wang Xuehui // Black Sea Science 2018 : матеріали Міжнар. конкурсу студентських наук. робіт, Одеса, 4 квіт. 2018 р. / Одес. нац. акад. харч. технологій ; ред. кол.: Б. В. Єгоров [та ін.]; орг. ком.: Б. В. Єгоров (голова) [та ін.]. – Одеса : ОНАХТ, 2018. – P. 747–757 : fig. – Ref.: 21 tit.