Thermal modeling and experimental evaluation of five different photovoltaic modules integrated on prototype test cells with and without water flow

Tomar, V S; Tiwari, G.N.; Bhatti, T. S.; Norton, Brian

doi:10.1016/j.enconman.2018.03.039

Cited by 43 publications

(12 citation statements)

References 45 publications

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“…), different types of collectors (flat plate, concentrator type‐compound parabolic, fresnel lens, and dish type), different type of operating media (air, water, glycol, oil, bi‐fluid, nanofluids, etc. ), different type of fluid flow (natural and forced) so far, a lot of PVT system has been investigated in different research studies 4,5 . Further, based on the different type of structural designs (unglazed, glazed, free flow, microchannel, single/double channel, etc.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the photovoltaic‐thermoelectric system combined with serpentine type water collector

2021

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Summary In this work, performance analysis of the photovoltaic‐thermoelectric with serpentine water collector (PV‐TE‐SWC) has been carried out. For extracting the heat from the back surface of the combined PV‐TE system and to maintain a temperature gradient, a serpentine‐type tube and sheet water collector is proposed. The electrical efficiency of the designed PV‐TE‐SWC is compared with the experimental and theoretical results on a similar type of collector from the literature to validate the proposed simulated model. After that, the performance in terms of annual useful thermal energy, annual overall electrical energy, annual useful overall thermal energy, annual thermal exergy, and annual overall exergy of the PV‐TE‐SWC (case‐I) have been carried out and compared with the outcomes of a recent state‐of‐art study on PV‐TE air collector (case‐II). The average improvement in hourly overall electrical efficiency and hourly exergy gain of case‐I have been found by 5.72% and 31.34%, respectively, concerning case‐II. The study shows that the annual performance parameters, that is, overall electrical energy, overall thermal energy, and overall exergy have been observed considerably higher for case‐I by 8.4%, 14.8%, and 41.7%, respectively concerning case‐II. Further, environmental cost analysis based on the price of carbon dioxide emission has also been computed based on annual overall thermal energy and overall exergy generated from the collector.

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Section: Introductionmentioning

confidence: 99%

Performance analysis of the photovoltaic‐thermoelectric system combined with serpentine type water collector

2021

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“…The mass flow rate optimization is needed which accounts for the load demands in terms of electrical and heating load to improve the overall efficiency showing further integration to buildings. 71…”

Section: Current Research and Developmentmentioning

confidence: 99%

A review on the application of photovoltaic thermal systems for building façades

Riaz

Liang

Zhou

et al. 2019

Building Services Engineering Research and Technology

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The hybrid photovoltaic-thermal system has shown great progress. Electrical energy is produced from PV panels while thermal energy is produced via a working fluid carried through the panels. In this paper, the vertical PV/T is introduced using working fluids such as air and liquid, which serve to control the excess temperature of the PV panels as well as to collect heat to be made available as thermal energy. Installations of PV/T systems on building façades, as well as integration with other technologies such as heat pipe and heat pump are also discussed. Current studies of such building integration technologies are also explored, including the scale of application. This study aims to provide constructive information which can be used in future development of building facades for large-scale applications, to contribute to future sustainable development. Practical application: This study helps researchers and engineers who are considering photovoltaic thermal systems for building façades to have better understanding of its effect on electrical and thermal energy – for space heating, fresh air supply and hot water supply – using an active building envelope.

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“…Cooling system increased almost 1.5% the electrical power generated The average errors of theorical and experimental was 5.29% [75] 2018 −0.5%/ • C. The performance of the complete model of the PV module (thermal+electric) is satisfactory, presenting NRMSE of 76.38%. This performance, in terms of predicting the energy generated by the PV module cooled with water-film, represents less than 0.2%.…”

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confidence: 92%

Theoretical and experimental research to development of water‐film cooling system for commercial photovoltaic modules

Silva

Martinez-Bolanos

Heideier

et al. 2021

IET Renewable Power Gen

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This work aims at developing and validating mathematical models and empirically evaluating a water-film cooling system for commercial photovoltaic modules. Methodologically, thermal, electrical and climatological data measured in a specific purpose on-grid outdoor test unit were used. In this work they are used to study the improvement in the performance of photovoltaic energy production due to temperature reduction. The first-order state-space linear parametric model presents the best performance to predict the temperature of the uncooled photovoltaic modules, with normalised mean square error (NRMSE) of 86.75%. In contrast, the non-linear model performance of cooled photovoltaic modules is lower, with NRMSE of 44.5%; however, the results show that the performance of the complete thermoelectric model is satisfactory, with NRMSE of 76.38%. On the other hand, empirical tests showed that the cooling system reduces temperature in 15-19%, on average, and to a maximum of 35%. In terms of power, there are average gains of 5-9%, and maximum gains of 12%. Regarding gross generation, there are average gains of 2.3-6%, and maximum gains of 12%. It was concluded that it is possible to mathematically model and predict this generation using non-linear models with a 0.2% error between modelled and measured generation. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Thermal modeling and experimental evaluation of five different photovoltaic modules integrated on prototype test cells with and without water flow

Cited by 43 publications

References 45 publications

Performance analysis of the photovoltaic‐thermoelectric system combined with serpentine type water collector

Performance analysis of the photovoltaic‐thermoelectric system combined with serpentine type water collector

A review on the application of photovoltaic thermal systems for building façades

Theoretical and experimental research to development of water‐film cooling system for commercial photovoltaic modules

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