Mathematical Modeling and Simulation of a Compound Parabolic Concentrators Collector with an Absorber Tube

Habib Shoeibi, Azad Jarrahian, Mehdi Mehrpooya (), Ehsanolah Assaerh, Mohsen Izadi and Fathollah Pourfayaz
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Habib Shoeibi: Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz 68875-61349, Iran
Azad Jarrahian: Department of Petroleum Engineering, Kish International Campus, University of Tehran, Kish 79416-39982, Iran
Mehdi Mehrpooya: Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14117-13114, Iran
Ehsanolah Assaerh: Department of Mechanical Engineering, Dezful Branch, Islamic Azad University, Dezful 61424-20890, Iran
Mohsen Izadi: Mechanical Engineering Department, Faculty of Engineering, Lorestan University, Khorramabad 68151-44316, Iran
Fathollah Pourfayaz: Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14117-13114, Iran

Energies, 2022, vol. 16, issue 1, 1-20

Abstract: CPC solar collectors are a combination of new technologies that make it possible to generate heat from radiant solar energy by transferring heat between the absorber and the fluid. This study was performed based on heat transfer equations by proposing a mathematical model, as reported in the literature. A compound parabolic concentrators solar collector (CPC) numerical model was simulated and coded in Aspen HYSYS and MATLAB software and validated by comparing its results with other researchers and experimental results. The simulated mathematical model includes a two-dimensional numerical model to describe the thermal and dynamic behavior of the fluid inside the CPC solar collector absorber tube. Numerical simulations of the fluid flow equations inside the CPC solar collector absorber tube, along with the energy equation for the absorber tube wall, coating, insulation and reflector, and solar collector heat analysis, were performed repeatedly in MATLAB and Aspen HYSYS software. This method is the most appropriate and reliable method for solving equations for numerical convergence. The experimental results of the parabolic concentrated solar collector (CPC) were used to evaluate and validate the numerical model. A solar compound parabolic concentrators collector (CPC) with short reflectors was used. This collector includes a cylindrical absorber with a real density ratio of 1.8, a reception angle of 22 degrees and a length of 2.81 m, a width of 0.32 m, and an opening of 0.1764 m. Analysis and uncertainty of the proposed model were performed with the measured sample. In the thermal efficiency analysis, the average deviation of the model from the experimental results of other researchers was equal to 7%, for increasing the temperature by 9 °C. According to these results, a good correlation between numerical results and experimental results for this proposed model has been obtained.

Keywords: compound parabolic concentrator solar collector (CPC); absorber tube; experimental study (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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