An ejector refrigeration cycle for utilizing solar thermal energy

Yusuke Saito, Takahiro Fukushima, Tatsuya Ito, Sarin Chan, Akiko Matsuo, Haruki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Getting hot thermal energy from solar energy is popular but cooling with solar thermal energy is not spread so far. It is possible to reduce electricity demand to use solar energy for cooling in summer. We are designing a system of an ejector refrigeration cycle, especially concerning the configuration of ejector itself, which can generate cooling effect with high efficiency from academic viewpoint. The analytical [1], numerical [4], and experimental approaches are applied for designing the configuration. In this paper, the experimental viewpoint will be discussed. Two different configuration ejectors were experimentally tested regarding the performance with an indoor testing device under the conditions of generating, condensing, and evaporating temperature ranges being about 58-69 °C, 17-35 °C, and 10-15 °C, respectively. The performance reaches higher than 80 % at a certain combination of temperatures, although the performance of the ejectors strongly depends on the temperature combinations.

Original languageEnglish
Title of host publicationWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference
Pages82-87
Number of pages6
Publication statusPublished - 2012 Dec 31
EventWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference - Denver, CO, United States
Duration: 2012 May 132012 May 17

Publication series

NameWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conferen
Volume1

Other

OtherWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference
CountryUnited States
CityDenver, CO
Period12/5/1312/5/17

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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  • Cite this

    Saito, Y., Fukushima, T., Ito, T., Chan, S., Matsuo, A., & Sato, H. (2012). An ejector refrigeration cycle for utilizing solar thermal energy. In World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference (pp. 82-87). (World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conferen; Vol. 1).