FIELD TESTS AND SIMULATION ANALYSIS OF THERMOSYPHONIC SOLAR WATER HEATERS

Mika Yoshinaga; Kosaku Shirode; Shunji Asai; Yasuo Kuwasawa

doi:10.24752/gre.1.0_79

Japan council for Renewable Energy(2018)

DOI https://doi.org/10.24752/gre.1.0_79

Conference information

Host: Japan council for Renewable Energy(2018)

Name : Grand Renewable Energy 2018

Date : June 17, 2018 - June 22, 2018

FIELD TESTS AND SIMULATION ANALYSIS OF THERMOSYPHONIC SOLAR WATER HEATERS

*Mika Yoshinaga, Kosaku Shirode, Shunji Asai, Yasuo Kuwasawa

Author information

Keywords: solar water heater, distribution system, field test, simulation, TRNSYS

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 79-

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Abstract

Thermosiphonic solar water heaters (SWHs) have still great potential for domestic hot water demand in Japan. Some new distribution systems for SWHs have come into the market to use solar heat in a more convenient and comfortable way. Therefore, an annual field test for 3 SWHs with 3 distribution systems was held in Tsukuba, which showed that the solar contribution was about 20MJ/day and that the solar efficiency was between 22 and 38%. Then, all effective daily data were simulated by TRNSYS18 and the calculated results showed good agreement to the field data.

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