Energy performance of ETFE cushion roof integrated photovoltaic/thermal system on hot and cold days

Hu, Jianhui; Chen, Wujun; Yang, Deqing; Zhao, Bing; Hao, Song; Ge, Binbin

doi:10.1016/j.apenergy.2016.03.111

Cited by 70 publications

(22 citation statements)

References 37 publications

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“…Hu et al [12] investigated the outdoor performance of an ETFE cushion roof integrated with PV/T system by assessing its energy. The investigation was aimed for performance of PV/T under winter and summer conditions.…”

Section: Conventional Pv/t Systemsmentioning

confidence: 99%

Novel Designs of Photovoltaic Thermal (PV/T) Systems

Sopian*,

Alwaeli,

Kazem

2019

IJRTE

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Advanced concepts of hybrid photovoltaic thermal (PV/T) collectors are proposed to improve electrical efficiency and utilize the waste heat as thermal energy. The use of air, water, and combinations of the two are considered traditional techniques. The complexity is raised when using advanced stateof-the-art systems to improve the overall efficiency of PV/T such as employing nanofluids, nano-Phase Change Material (PCM), heat pump and jet impingement. This paper presents a review of novel designs which are proposed in the literature to enhance the performance of PV/T collectors and from it the evaluation criteria is derived. The comparison between different designs could be based on having same pumping power, size, or designs; depending on the element intended for the comparison. The designs also vary according to the bias assigned; whether to improve electrical performance more, or thermal performance. The common aspects observed in the literature are investigations of mass flow rate, impact of solar irradiance, and design parameters such as pipe material, configuration and diameters

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Section: Conventional Pv/t Systemsmentioning

confidence: 99%

Novel Designs of Photovoltaic Thermal (PV/T) Systems

Sopian*,

Alwaeli,

Kazem

2019

IJRTE

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“…Single duct single pass scheme is observed to yield best electrical efficiency. Hu et al (2016a;2014) study the possible advantages of using three layers of Ethylene Tetrafluoroethylene (ETFE) cushion integrated with 2-piece PV modules. It is expected that ETFE cushion can increase thermal efficiency.…”

Section: Hpv/t Collectors Using Air As Heat Transfer Fluidmentioning

confidence: 99%

“…Different absorber designs are also tested by several researchers (Michael and Selvarasan, 2017;Hu et al, 2016a;Deng et al, 2015). Cuce et al (2013) experimentally analyzed performance characteristics of photovoltaics based on selected parameters from thermodynamics perspectives Cuce et al, 2011).…”

Section: Hpv/t Studies Based On Experimentsmentioning

confidence: 99%

Hybrid Photovoltaic/Thermal (HPV/T) Systems: From Theory to Applications

Cüce¹,

Oztekin²,

Cuce³

2018

Energy Research Journal

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Hybrid photovoltaic/ thermal systems are very promising clean energy harvesting devices where they can be used either standalone system or can be incorporated with other systems. In this study, historical developments leading to current Hybrid Photovoltaic/Thermal (HPV/T) systems as it is used today and global findings to enhance the performance of HPV/T system through state-of-the-art analyses are presented in a thematic way. The findings from initial studies on the HPV/T systems is revealed in an historical way and rest of sections are formed based on selected criteria. The paper covers basic and advanced type collectors, working fluids, analyzing methods to assess performance, thermodynamic approaches, optimization of design parameters and mass flow rates, techniques to enhance performance and comparative studies. Especially, various parametric studies to optimize performance of the HPV/T with respect to selected parameters including different types of absorbers, packing factor, cooling schemes, working fluid types, modifications at different sections of the system are comprehensively investigated. Based on the conclusions, the variation in electrical and thermal efficiencies are mainly in the scope of this study. It is observed from the literature that solar HPV/T system has a great potential to be one of the up and coming clean energy technology.

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“…Globalisation and economic growth led to an increase in the consumption of conventional methods in generating electricity, which have some negative environmental impacts, such as greenhouse gas emissions. Therefore, there was a need for investigating alternative energy sources, such as solar photovoltaic (PV) energy, which is currently the fastest growing renewable energy technology in the world [1].…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…One of the most widespread technologies of renewable energy generation is the use of photovoltaic (PV) systems which convert sunlight into usable electrical energy [1][2]. This type of renewable energy technology, which is pollutant free during operation, diminishes global warming issues, lowers operational cost and offers minimal maintenance and the highest power density compared to the other renewable energy technologies; highlights the advantages of solar photovoltaic (PV) energy [3][4].…”

Section: Introductionmentioning

confidence: 99%

Optimal Switching Control of Flow in PV/T Systems with Forced Circulation: Model Development

2018

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Cooling the operating surface is a key operational factor to take into consideration to achieve higher efficiency when operating solar photovoltaic systems. Appropriate cooling may improve the electrical efficiency and decrease the rate of cell degradation with time, resulting in maximization of the life span of photovoltaic modules. The excessive heat removed by the cooling system can be used in domestic, commercial or industrial applications. The hybrid photovoltaic/thermal (PV/T) system cooled by forced water circulation is one of the most efficient methods used to improve the electrical performance of a PV module. These systems operate mostly on the principle in cooling the PV module at a constant flow rate. However, the optimal PV output power cannot be achieved due to the circulating water not absorbing most of the heat on the surface of the PV module. In order to solve this problem, a mathematical model dealing with the optimal switching of flow in PV/T systems with forced circulation has been developed, with the aim of controlling the surface operating temperature whilst increasing the conversion efficiency. The optimal switching control model is used to reduce the surface operating temperature of the PV module, where it is simulated by making use of the SCIP (Solving Constrained Integer Programs) solver in the optimization toolbox in MATLAB. The simulation results illustrate that the optimal switching control of flow may improve the electrical output power of a PV module, as well as effectively reducing the surface temperature thereof. Furthermore, an economic feasibility study was performed to compare these systems, where the optimal switching control strategy has a significantly higher initial capital cost compared to the standard PV system. However, when studying both systems over their predicted lifetime, the optimal switching control strategy generates a significantly higher profit, regardless of its extortionate initial capital cost, and is, therefore, the ultimately efficient system.

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Energy performance of ETFE cushion roof integrated photovoltaic/thermal system on hot and cold days

Cited by 70 publications

References 37 publications

Novel Designs of Photovoltaic Thermal (PV/T) Systems

Novel Designs of Photovoltaic Thermal (PV/T) Systems

Hybrid Photovoltaic/Thermal (HPV/T) Systems: From Theory to Applications

Optimal Switching Control of Flow in PV/T Systems with Forced Circulation: Model Development

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