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2022 Vol.42, Issue 3 Preview Page

Research Article

Evaluation of Heat Transfer Performance Depending on Semicircular Turbulence Promoter Shape Conditions and Flow Conditions in the Air-Type PV/T Collector

공기식 태양광/열 집열기 내 반원 난류 촉진제 형상조건과 유동 조건에 따른 열전달 성능 평가

Junyeop Kim1
,
Seongbhin Kim2
,
Byunghwa An4
,
Hwiung Choi3
,
Kwanghwan Choi5*
김 준엽1
,
김 성빈2
,
안 병화4
,
최 휘웅3
,
최 광환5*
1MS Candidate, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University
2Ph.D. Candidate, Depart of Refrigeration and Air-Conditioning Engineering, Pukyong National University
3Researcher, Yabes Co., Ltd
4Research Professor, Industry-University Cooperation Foundation, Pukyong National University
5Professor, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University
1부경대학교 냉동공조공학과 대학원, 석사과정
2부경대학교 냉동공조공학과 대학원, 박사과정
3(주)야베스, 연구원
4부경대학교 산학협력단, 연구교수
5부경대학교 냉동공조공학과, 교수
*Corresponding Author
30 June 2022. pp. 47-61
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Abstract

Air-type photovoltaic thermal (PV/T) collectors have a lower heat recovery rate than liquid-type collectors. Therefore, in this study, semicircular turbulence promoters were attached to the back of the PV cell to improve the heat recovery rate. Based on computational fluid dynamics, the heat-transfer performance and pressure drop were evaluated by changing the Reynolds number (Re) and semicircular turbulence promoter shape conditions. The turbulence promoter shape conditions include the relative height and relative pitch of the turbulence promoter. In addition, the increasing ratio, which means an increase in height of the turbulence promoter in the direction of flowing air, the length of the turbulence promoter, and the distance between the turbulence promoters were considered as design parameters. Consequently, the heat transfer performance increased with a decrease in relative height of turbulence promoter, while the pressure drop increased with an increase in relative height of turbulence promoter. Also, both the heat transfer performance and pressure drop show better performance as the increasing ratio of turbulence promoter decreased. The thermos-hydraulic performance parameter considering both the heat transfer performance and pressure drop presented the maximum value of 1.92 for the relative height of 0.02, increasing ratio of 1.

Keywords
Air-type PV/T collector
Turbulence promoter
Reynolds number
Thermohydraulic performance parameter
Computational Fluid Dynamics
키워드
공기식 PV/T 집열기
난류 촉진제
레이놀즈수
열전달 성능계수
CFD
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Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 42
  • No :3
  • Pages :47-61
  • Received Date : 2022-04-01
  • Revised Date : 2022-04-22
  • Accepted Date : 2022-04-28
  • DOI :https://doi.org/10.7836/kses.2022.42.3.047
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