A numerical and experimental study on a heat pipe PV/T system

Pei, Gang; Huide, Fu; Zhang, Tao; Ji, Jie

doi:10.1016/j.solener.2011.02.006

Cited by 203 publications

(52 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The use of the heat pipe technology has been investigated extensively in recent years as of the efficiency of such system and the many advantages that it brings to the PV/T systems including but not limited to: multiple contingency, modular design and cost efficiency [14e25]. Gang et al [13,26,27] presented performance and parametric analysis of a novel heat pipe PV/T system in which a dynamic model of the HP-PV/T system has been presented and validated it using experimental results. Based on the presented model, the authors have demonstrated that the performance of HP-PV/T system increases with the increase of the flow rate, which is to be expected based on earlier research.…”

Section: Introductionmentioning

confidence: 99%

The performance of a novel flat heat pipe based thermal and PV/T (photovoltaic and thermal systems) solar collector that can be used as an energy-active building envelope material

Jouhara

Milko

Danielewicz

et al. 2016

Energy

125

View full text Add to dashboard Cite

a b s t r a c tA novel flat heat pipe design has been developed and utilised as a building envelope and thermal solar collector with and without (PV) bonded directly to its surface. The design of the new solar collector has been validated through full scale testing in Cardiff, UK where solar/thermal, uncooled PV and PV/T tests were carried out on three identical systems, simultaneously. The tests showed a solar/thermal energy conversion efficiency of around 64% for the collector with no PV and 50% for the system with the PV layer on it. The effect of cooling on the solar/electrical energy conversion efficiency was also investigated and an efficiency increase of about 15% was recorded for the cooled PV system due to the provided homogenous cooling. The new flat heat pipe solar collector is given the name "heat mat" and, in addition to being an efficient solar collector type, it is also designed to convert a building envelope materials to become energy-active. A full size roof that utilise this new building envelope material is reported in this paper to demonstrate the way this new collector is integrated as a building envelope material to form a roof. A thermal absorption test, in a controlled environment, from the ambient to the heat mat with no solar radiation is also reported. The test has proved the heat mat as an efficient thermal absorber from the ambient to the intermediate fluid that deliver the heat energy to the heat pump system.

show abstract

Section: Introductionmentioning

confidence: 99%

The performance of a novel flat heat pipe based thermal and PV/T (photovoltaic and thermal systems) solar collector that can be used as an energy-active building envelope material

Jouhara

Milko

Danielewicz

et al. 2016

Energy

125

View full text Add to dashboard Cite

show abstract

“…Photovoltaic cells are sealed on leaves absorber with a special resin for recovering heat energy from the coolant circulating in the lower layer. [12][13][14] The PVT collector allows up to 40% more effective performance of photovoltaic modules by cooling part, compared to a traditional PV collector. [15][16][17] (1)…”

Section: Pvt Hybrid Collectorsmentioning

confidence: 99%

Optimization of angle of inclination of the hybrid photovoltaic-thermal solar collector using particle swarm optimization algorithm

Tabet¹,

Touafek²,

Bellel³

et al. 2014

Journal of Renewable and Sustainable Energy

View full text Add to dashboard Cite

Maximum power point tracking of partial shaded photovoltaic array using an evolutionary algorithm: A particle swarm optimization technique J. Renewable Sustainable Energy 6, 023102 (2014); 10.1063/1.4868025Performance evaluation of a solar photovoltaic thermal air collector using energy and exergy analysis J. Renewable Sustainable Energy 3, 043115 (2011); 10.1063/1.3624760Energy and exergy analysis of hybrid photovoltaic/thermal solar water heater considering with and without withdrawal from tankIn this paper, a mathematical model is used to determine the solar radiation incident on an inclined surface and the optimum slope angles for each month, season, and year are calculated for solar hybrid collectors. We recommend on how the collected energy can be increased by varying the tilt angle. First, we esteem the global solar radiation on a horizontal surface of a thermal photovoltaic hybrid collector (PVT) for a clear sky. The data set of the solar radiation at Gharda€ ıa (Algeria) measured during 2013 was used to analyze the models of global solar radiation estimation. The models of performance are evaluated by using the coefficient of correlation (R 2 ), the absolute average error skew (mean absolute error, MABE), average quadratic error (mean square error RMSE), the percentage of the average error (MPE), and the percentage of average absolute error. Then the anisotropic and isotropic models that provide the most accurate estimation of the total solar radiation has been used to determine the optimum collector slope. Particle swarm optimization method was applied to obtain the tilt angle setting of the tilt angle of PVT collector. The objective was to improve the efficiency of PVT collector. The results show that these models used are very well designed. The coefficient of correlation (R 2 ) varies from 0. 90 to 0. 99. For the percentage of errors of prediction (MABE and RMSE) lowered by 0.1, it is observed also that the angle of inclination of PVT collector takes different values during the year and that the collector received more solar energy compared to collector without optimal angle. V C 2014 AIP Publishing LLC. [http://dx.

show abstract

“…Some of the most widespread PV/T collector technologies or heat exchangers are based on water cooling or air cooling systems [14][15][16][17]. According to the literature the use of active cooling techniques is able to decrease the operating temperatures of the PV panels by 20%, while to increase their electrical efficiency by 9% [18,19]. A popular cooling system with great application potentials is the integration of PV panels with heat pipes [20,21].…”

Section: Introductionmentioning

confidence: 99%

The performance of a heat pipe based solar PV/T roof collector and its potential contribution in district heating applications

Jouhara

Szulgowska-Zgrzywa

Sayegh

et al. 2017

Energy

View full text Add to dashboard Cite

Photovoltaic-thermal water collectors have the ability to convert solar energy into electricity and heat, simultaneously. Furthermore, the combination of photovoltaic-thermal solar collectors with a water cooling system can increase significantly the electrical and thermal efficiencies of the system, which can improve the total thermal efficiency of buildings. In this paper, the findings of six experimental configurations of solarthermal collectors are presented and analysed. Five of the solar-thermal panel configurations were implemented with a cooling cycle. Two of the solar-thermal panels were equipped with monocrystalline silicon modules, the other two collectors were equipped with polycrystalline silicone modules, one of the collectors was based on heat pipe technology and was equipped with a cooling system, while the last collector did not include any cooling cycle. The duration of the experiments was four days during the September of 2014 and they were conducted under different solar radiation conditions. The second part of the paper presents the simulation results for five of the solar-thermal panels connected with a cooling water tank (volume of 500 litre), a domestic hot water tank (volume 350 litre) and a water-water heat pump, in terms of covering the hot water demands of a single family dwelling. The results showed that the hybrid solar collectors would be able to cover approximately 60% of the dwelling's hot water needs for days with low levels of solar radiation, while for days with high solar radiation they could cover the hot water requirements of the family by 100%.

show abstract

A numerical and experimental study on a heat pipe PV/T system

Cited by 203 publications

References 24 publications

The performance of a novel flat heat pipe based thermal and PV/T (photovoltaic and thermal systems) solar collector that can be used as an energy-active building envelope material

The performance of a novel flat heat pipe based thermal and PV/T (photovoltaic and thermal systems) solar collector that can be used as an energy-active building envelope material

Optimization of angle of inclination of the hybrid photovoltaic-thermal solar collector using particle swarm optimization algorithm

The performance of a heat pipe based solar PV/T roof collector and its potential contribution in district heating applications

Contact Info

Product

Resources

About