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2026 Vol.46, Issue 3 Preview Page
Experimental Analysis of a Double-Pass Air-Based PVT System with Heat Transfer Enhancement Devices

열전달 향상 장치를 적용한 이중유로 공기식 PVT 시스템의 실험적 성능 분석

Geonyong An1
,
Hyeonseok Jeong2
,
Kwangam Moon3
,
Byeonghwa An3
,
Hwiung Choi4*
안 건용1
,
정 현석2
,
문 광암3
,
안 병화3
,
최 휘웅4*
1Integrated Master’s and Doctoral Course, Graduate School of Refrigeration and Air-Conditioning Engineering, Chonnam National University
2MS Candidate, Graduate School of Refrigeration and Air-Conditioning Engineering, Chonnam National University
3Researcher, Department of Refrigeration and Air-Conditioning Engineering, Chonnam National University
4Assistant Professor, Department of Refrigeration and Air-Conditioning Engineering, Chonnam National University
1전남대학교 냉동공조공학과 대학원, 석·박사통합과정
2전남대학교 냉동공조공학과 대학원, 석사과정
3전남대학교 냉동공조공학과, 연구원
4전남대학교 냉동공조공학과, 조교수
*Corresponding Author
30 June 2026. pp. 63-76
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Abstract

An air-based photovoltaic/thermal (PVT) system is a device that converts solar radiation into useful thermal energy and electricity. However, air-based PVT systems are characterized by low thermal performance, and numerous studies have been conducted to enhance their efficiency using fins, obstacles, and modifications to flow channel configurations. In this study, experiments were conducted to analyze the performance of a system integrated with a heat transfer enhancement device, composed of fins and obstacles, in the lower channel of a double-pass air-based PVT system. The experiments were performed under three distinct air flow rate conditions, each tested over three separate days, from 9:00 a.m. to 4:00 p.m. The results indicated that under high flow rate conditions, indicators such as thermal output, power output, and net energy efficiency were generally the highest. A comparison of daily energy output, considering the thermal output, power output, and fan power consumption, revealed that the highest daily energy output was achieved under the highest flow rate condition. Nevertheless, when only power output and fan power consumption were considered, the medium flow rate condition showed the highest values. Therefore, future research should employ numerical modeling to identify the optimal flow rate for system performance and conduct further performance evaluation studies accordingly.

Keywords
Photovoltaic thermal system
Heat transfer enhancement device
Double-pass
Net energy efficiency
키워드
태양광열 시스템
열전달 향상장치
이중유로
순에너지 효율
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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 : 46
  • No :3
  • Pages :63-76
  • Received Date : 2026-03-01
  • Revised Date : 2026-04-06
  • Accepted Date : 2026-04-27
  • DOI :https://doi.org/10.7836/kses.2026.46.3.063
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