Numerical Simulation of Conjugate Heat Transfer in a PTC with Secondary Reflector

Regue, Hanane Maria; Bouali, B.; Benchatti, Toufik; Benchatti, Ahmed

doi:10.18280/ijht.380102

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…The present paper describes a study that has been carried out on a small-sized PTC designed in Mechanical Laboratory. The prototype is described in our previous papers [20,21], where a series of experimental and numerical tests were made with both water and Therminol VP-1 as a working fluids. The conditions of the experiments were insufficient to generalize the study: lack of certain measuring instruments and insufficient test periods.…”

Section: Introductionmentioning

confidence: 99%

Analysis and simulation of thermal performance of a PTC with secondary reflector

Regue

Bouali

Benchatti

et al. 2021

Journal of Thermal Engineering

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In this paper, a numerical simulation of fluid flow and conjugate heat transfer in a solar thermal parabolic trough collector (PTC) system is presented. The simulation is being carried out on a prototype designed in the Mechanical Laboratory in order to analyze the performance of this system. The main objective is to compare the system performance with and without a secondary reflector (SR). PVSYST software is used to provide numerical temporal values of the solar heat flux in Laghouat city (ALGERIA). Solar flux density values for four days in different seasons have been taken. SolTrace code is used to determine the heat flux distribution on the absorber tube. The conjugate heat transfer and fluid flow equations in the tube absorber are solved by using ANSYS-CFX CFD software. A comparison between two cases (traditional PTC and PTC with parabolic secondary reflector) with the same working fluid (Therminol VP-1) is carried out. The obtained results show that the system performance are practically the same for the four seasons. Moreover, the performance of the system with a second collector is better than that without a second reflector with a ratio of about 1.65.

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Section: Introductionmentioning

confidence: 99%

Analysis and simulation of thermal performance of a PTC with secondary reflector

Regue

Bouali

Benchatti

et al. 2021

Journal of Thermal Engineering

Self Cite

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A novel design to optimize the optical performances of parabolic trough collector using Taguchi, ANOVA and grey relational analysis methods

Ben Taher,

Pelay,

Russeil

et al. 2023

Renewable Energy

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Contribution to the Parametric Study of the Performance of A Parabolic Trough Collector

Bouali

Regue

2021

E3S Web Conf.

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This paper presents an analysis of the performance of a parabolic trough collector (PTC) according to some key operating parameters. The effects of the secondary reflector, the length and thickness of the absorber tube (receiver tube) and the flow rate of the heat transfer fluid (HTF) are investigated. The main objective is to determine an optimal operation, which improves the performance of a traditional PTC. The target variables are the temperature at the outlet of the tube, the amount of energy collected by the HTF and the efficiency of the system. The solar flux data concern the city of LAGHOUAT located in the south of Algeria. Four days in different seasons are considered. The optical analysis of the system is performed by using the open source SolTrace code. The output of this analysis is used as a boundary condition for the CFD solver. The conjugate heat transfer and the fluid flow through the absorber tube are simulated by using ANSYS-CFX solver. Water is considered as heat transfer fluids. The obtained results show that the use of a curved secondary reflector significantly improves the performance of the traditional PTC. As the thickness of the tube increases, the heat storage in the material increases, which increases the temperature at the exit of the tube and therefore the efficiency of the system. However, the length of the tube depends on the mass flow of the HTF and vice versa. To keep the efficiency constant by choosing another length, it is necessary to choose a mass flow rate proportional to the flow rate corresponding to the initial length.

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Numerical Simulation of Conjugate Heat Transfer in a PTC with Secondary Reflector

Cited by 4 publications

References 18 publications

Analysis and simulation of thermal performance of a PTC with secondary reflector

Analysis and simulation of thermal performance of a PTC with secondary reflector

A novel design to optimize the optical performances of parabolic trough collector using Taguchi, ANOVA and grey relational analysis methods

Contribution to the Parametric Study of the Performance of A Parabolic Trough Collector

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