Thermal modelling and experimental evaluation of a novel concentrating photovoltaic thermal collector (CPVT) with parabolic concentrator

Gorouh, Hossein Afzali; Salmanzadeh, Mazyar; Nasseriyan, Pouriya; Hayati, Abolfazl; Cabral, Diogo; Gomes, João; Karlsson, Björn

doi:10.1016/j.renene.2021.09.042

Cited by 38 publications

(14 citation statements)

References 19 publications

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“…h in and h out are the heat transfer coefficients computed between the glass and the inside air, and between the glass and the outside air, respectively. In equation (7), the first balance term is the incoming absorbed radiation from the elements that are inside the glass and the second balance term is the part of the solar incoming radiation absorbed by the glass (taking into account that the radiation is not incident to all the outside area of the glass, an incidence area Ā shall be estimated). The third balance term is the thermal radiation emitted by the glass, the fourth is the diffusive radiation coming from the surroundings, and the last is the convective heat exchange.…”

Section: Numerical Model and Implementationmentioning

confidence: 99%

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A 3D symmetry-preserving simulation of a concentrated photovoltaic thermal (CPVT) solar collector

Santos,

Rigola,

Castro

et al. 2024

J. Phys.: Conf. Ser.

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In this work, a general collocated and unconditionally stable framework on unstructured meshes for solving Conjugate Heat Transfer (CHT) problems is presented by means of preserving the underlying symmetries of the continuous differential operators, thus not introducing uncontrolled artificial numerical dissipation to our system. Then, this framework is applied to solve a Concentrated PhotoVoltaic Thermal (CPVT) Solar Collector. Furthermore, a new boundary condition is implemented to consider the heat transfer between enclosed elements, including radiation. The model is validated using experimental data.

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Section: Numerical Model and Implementationmentioning

confidence: 99%

“…al. have recently proposed a zero-dimensional thermal model for a CPVT collector, which involves solving heat transfer and energy balance equations [7]. Calise et.…”

Section: Introductionmentioning

confidence: 99%

A 3D symmetry-preserving simulation of a concentrated photovoltaic thermal (CPVT) solar collector

Santos,

Rigola,

Castro

et al. 2024

J. Phys.: Conf. Ser.

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“…The thermal power (P thermal ) extracted by the HTF is part of the energy balance of Equations ( 20) and (21); it is defined by Equation (39). This model is generally accepted and has been used in different studies: Ji [122], Haiping [83], Xinxin [85], Karathanassis [45] and Herez [25].…”

Section: Thermal Model Of the Htfmentioning

confidence: 99%

A Review of the Modeling of Parabolic Trough Solar Collectors Coupled to Solar Receivers with Photovoltaic/Thermal Generation

Chavarría-Domínguez,

De León-Aldaco,

Velázquez-Limón

et al. 2024

Energies

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This paper is a summary of the last ten years of work on the study of parabolic trough collectors (PTCs) and compound parabolic collectors (CPCs) coupled to photovoltaic and thermal solar receiver collectors (SCR-PVTs). While reviewing the state of the art, numerous review papers were found that focused on conventional solar receiver collector (SRC) technology for solar thermal generation. However, there is a lack of review papers summarizing SRC-PVT hybrid technology for solar electric/thermal generation, which would be beneficial for researchers interested in this area of research. This paper provides a review of SRC-PVT hybrid technologies. The theoretical foundations for analyzing and modeling PTC and CPC concentrators coupled to SRC-PVT are described, with an emphasis on modeling through thermal resistances and energy balances. Additionally, this section provides a concise overview of previous studies that have addressed the modeling of PTC and CPC collectors coupled to SCR-PVT, as well as experimental information useful for the validation of new mathematical models of SRC-PVT.

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“…Through a Graphical User Interface, the software allows the user to design complex geometries by combining a wide range of shapes, and to define the optical parameters of the surfaces of the collector by modifying the available material groups. The results obtained by the program have been validated with experimental data from different systems and the software has been used in numerous research studies in the field of the performance analysis of solar thermal collectors [37,40].…”

Section: Numerical Modeling 231 Simulation Toolsmentioning

confidence: 99%

Thermal and Optical Analyses of a Hybrid Solar Photovoltaic/Thermal (PV/T) Collector with Asymmetric Reflector: Numerical Modeling and Validation with Experimental Results

et al. 2023

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This study presents a combined thermal and optical, three-dimensional analysis of an asymmetric compound parabolic collector (ACPC) with an integrated hybrid photovoltaic/thermal (PV/T) receiver with the aim of establishing a sustainable approach in two ways: firstly, by determining the optimal tilt angle for operations, and secondly, by introducing an innovative simulation method which reduces computational cost while calculating thermal performance. Initially the Incident Angle Modifier ( ) was calculated for a wide range of incident angles, and the ray-tracing results were verified using three different simulation tools (Tonatiuh, COMSOL, and SolidWorks) with mean deviations being lower than 4%. The optimal tilt angle of the collector was determined for seven months of the year by conducting a detailed ray-tracing analysis for the mean day of each month considering whole day operation. In the thermal analysis part, the authors introduced novel numerical modeling for numerical simulations. This modeling method, designed with sustainability in mind, enables lighter computational domains for the air gap while achieving accurate numerical results. The approach was established using two distinct simulation tools: COMSOL and SolidWorks. From the optical analysis, it was found that in all months examined there is a four-hour time range around solar noon in which the optimum tilt angle remains constant at a value of 30°. The numerical models constructed for the thermal analysis were verified with each other (6.15% mean deviation) and validated through experimental results taken from the literature regarding the examined collector (<6% mean deviation). In addition, the two simulation tools exhibited a deviation of around 6% between each other. Finally, the thermal performance of the collector was investigated for the mean day of September at solar noon by adopting the optimal tilt angle for that month according to the optical analysis, considering inlet temperatures from 20 °C up to 80 °C.

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Thermal modelling and experimental evaluation of a novel concentrating photovoltaic thermal collector (CPVT) with parabolic concentrator

Cited by 38 publications

References 19 publications

A 3D symmetry-preserving simulation of a concentrated photovoltaic thermal (CPVT) solar collector

A 3D symmetry-preserving simulation of a concentrated photovoltaic thermal (CPVT) solar collector

A Review of the Modeling of Parabolic Trough Solar Collectors Coupled to Solar Receivers with Photovoltaic/Thermal Generation

Thermal and Optical Analyses of a Hybrid Solar Photovoltaic/Thermal (PV/T) Collector with Asymmetric Reflector: Numerical Modeling and Validation with Experimental Results

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