Effects of forced convection on the performance of a photovoltaic thermal system: An experimental study

被引：94

作者：

Kasaeian, Alibakhsh ^{[1
]}

Khanjari, Yasamin ^{[1
]}

Golzari, Soudabeh ^{[1
]}

Mahian, Omid ^{[2
]}

Wongwises, Somchai ^{[3
]}

机构：

[1] Univ Tehran, Fac New Sci & Technol, Dept Renewable Energies, Tehran, Iran

[2] Ferdowsi Univ Mashhad, Fac Sci, Dept Phys, Renewable Energies Magnetism & Nanotechnol Lab, Mashhad, Iran

[3] King Mongkuts Univ Technol Thonburi, Fac Engn, Dept Mech Engn, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, Bangkok 10140, Thailand

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2017年 / 85卷

关键词：

PV thermal system; Forced convection; Thermal efficiency; Air-cooled PV/T; PV/T SOLAR COLLECTORS; AIR COLLECTOR; ENERGY; WATER; EXERGY; DESIGN; MODEL;

D O I：

10.1016/j.expthermflusci.2017.02.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A photovoltaic thermal system (PV/T) is a combination of solar cells and solar heating systems that simultaneously produces electricity and low-grade heat. The present paper experimentally investigates the effects of forced convection on the thermal and electrical efficiencies of a single-pass air PV/T system. For this purpose, a modified air-cooled PV/T system that is equipped with four fans to produce forced convection conditions was tested. The effects of air mass flow rate and depth of the channel were studied. The results illustrate that the reduction in the depth of air channel increases the thermal efficiency, but it has no considerable effect on the electrical efficiency. With increasing the mass flow rate of air, the thermal efficiency is increased, but a slight enhancement is obtained for the produced electrical power by PV. The outcomes show that the thermal efficiency of system with 0.05 (m) channel depth and air mass flow rate of 0.018 (kg/s) to 0.06 (kg/s) is approximately in the range of 15-31% while the electrical efficiency just changes in the range of 12-12.4%. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：13 / 21

页数：9

共 36 条

[1] Overall energy, exergy and carbon credit analysis by different type of hybrid photovoltaic thermal air collectors [J].

Agrawal, Sanjay ;

Tiwari, G. N. .

ENERGY CONVERSION AND MANAGEMENT, 2013, 65 :628-636

[2] An Experimental Study on a Photovoltaic/Thermal (PV/T) Air Collector with Direct Coupling of Fans and Panels [J].

Ameri, M. ;

Mahmoudabadi, M. M. ;

Shahsavar, A. .

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2012, 34 (10) :929-947

[3] Field study of various air based photovoltaic/thermal hybrid solar collectors [J].

Amori, Karima E. ;

Abd-AlRaheem, Mustafa Adil .

RENEWABLE ENERGY, 2014, 63 :402-414

[4] Energy and thermo-fluid-dynamics evaluations of photovoltaic panels cooled by water and air [J].

Arcuri, Natale ;

Reda, Francesco ;

De Simone, Marilena .

SOLAR ENERGY, 2014, 105 :147-156

[5] Design, development and performance monitoring of a photovoltaic-thermal (PVT) air collector [J].

Aste, Niccolo ;

Chiesa, Giancarlo ;

Verri, Francesco .

RENEWABLE ENERGY, 2008, 33 (05) :914-927

[6] Maximising the energy output of a PVT air system [J].

Bambrook, S. M. ;

Sproul, A. B. .

SOLAR ENERGY, 2012, 86 (06) :1857-1871

[7] A review on photovoltaic/thermal hybrid solar technology [J].

Chow, T. T. .

APPLIED ENERGY, 2010, 87 (02) :365-379

[8] An experimental study on using natural vaporization for cooling of a photovoltaic solar cell [J].

Ebrahimi, Morteza ;

Rahimi, Masoud ;

Rahimi, Alireza .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2015, 65 :22-30

[9] Full optimisation and sensitivity analysis of a photovoltaic-thermal (PV/T) air system linked to a typical residential building [J].

Farshchimonfared, M. ;

Bilbao, J. I. ;

Sproul, A. B. .

SOLAR ENERGY, 2016, 136 :15-22

[10]

Goh Li Jin, 2010, American Journal of Applied Sciences, V7, P277, DOI 10.3844/ajassp.2010.277.282

← 1 2 3 4 →