An experimental study of a built-middle Photovoltaic Trombe wall system

Yen-Hui Lin ,Jie Ji,Jinwei Ma ,Xuefei Li

doi:10.1051/e3sconf/201913602028

Yen-Hui Lin , Jie Ji + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/201913602028

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Abstract

This paper proposed a PV-integrated Trombe wall system (PVTW) with the photovoltaic panel installed in the middle of air channel, named as built-middle photovoltaic Trombe wall system (PVMTW). The system has multiple functions: such as photovoltaic power generation, passive space heating, heat preservation and heat insulation. A series of tests were carried out in winter between the comparable hot- boxes to investigate the thermal and electrical performance of the PVMTW system. The results showed that the average electrical efficiency and thermal efficiency were 0.12 and 0.40, respectively, under the natural convection mode. The total efficiency of the PVMTW system was calculated to be 0.587, which is 11.4 % higher than that of traditional PVTW system with the solar cells laminated on the glass cover.

Highlights

PV-Trombe wall (PVTW) has attracted more and more attention because it has multiple functions such as power generation, space heating in winter and heat preservation
The PVTW system can be grouped into three major types according to the installation position of the PV panel in the Trombe wall system from the published literatures
One is that the PV panel was laminated on the surface of glass, known as built-out photovoltaic integrated Trombe wall (PVOTW) system[1]

Summary

Introduction

PV-Trombe wall (PVTW) has attracted more and more attention because it has multiple functions such as power generation, space heating in winter and heat preservation. One is that the PV panel was laminated on the surface of glass, known as built-out photovoltaic integrated Trombe wall (PVOTW) system[1]. The one Su et al [2] proposed to attach to the PV panel on the massive wall, known as built-in photovoltaic integrated Trombe wall (PVITW) system. Among the various techniques employed to improve the performance of the PVTW system, few people previously have proposed to install the PV panel in the middle of the air channel. The PV panel laminated on the heat absorber plate is installed in the middle of the air channel of the Trombe wall system, which is called as built-middle photovoltaic integrated Trombe wall (PVMTW). This new PVMTW system has multiple functions: space heating, thermal insulation and electricity generation. The purpose of this paper is to investigate the thermal and electrical performances of the PVMTW system through experimental studies by comparison with the traditional PVOTW system

Description of the experimental setup

Performance evaluation of PVTW system

Results and discussion