Experimental and computational fluid dynamics investigations of tracking CPC solar collectors

Yuan, Guofeng; Fan, Jianhua; Kong, Weiqiang; Furbo, Simon; Perers, Bengt; Sallaberry, Fabienne

doi:10.1016/j.solener.2020.01.090

Cited by 17 publications

(5 citation statements)

References 35 publications

(24 reference statements)

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“…Differently designed evacuated tubular collectors were also tested side by side at DTU's test facility. The collector efficiency of a tracking compound parabolic collector was measured by Yuan et al (Yuan et al 2020).…”

Section: Solar Collector Technologiesmentioning

confidence: 99%

Solar thermal energy

Fan¹,

Furbo²,

Wang³

et al. 2020

The SDC International Report 2020 : Cooperating for Energy Transition

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Section: Solar Collector Technologiesmentioning

confidence: 99%

Solar thermal energy

Fan¹,

Furbo²,

Wang³

et al. 2020

The SDC International Report 2020 : Cooperating for Energy Transition

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“…The results indicated that the collector e ciency in the east-west direction is higher than the collector e ciency in the north-south direction [11]. Yuan et al [12] investigated the thermal performance of a CPC with a tracker experimentally and numerically by adding a transparent Ethylene Tetra Fluoro Ethylene (ETFE) foil. Results revealed that foil addition around the absorber reduces the convective heat loss by up to half and increases the e ciency by about 5%.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis of the designed CPC and its efficiency improvement by MPPT control

Nabatian

Nasiri

2023

Scientia Iranica

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The Compound Parabolic Concentrator (CPC) is designed, and its optical and thermal analysis is performed in ANSYS. The CPC sizing and the optimal mass ow rate by Maximum Power Point Tracking (MPPT) method in MATLAB are determined. The radiative transfer equation is solved by Discrete Ordinate (DO) and Monte Carlo (MC) models, and the deduced radiative ux divergence is applied as a source term in Navier-Stokes equations to model heat transfer. Results indicate that MC is faster than DO with lower computational cost and higher accuracy. The optimal mass ow rate at each timevariable solar radiation is calculated from MPPT control and entered as the inlet boundary condition for the 3D Computational Fluid Dynamics (CFD) model. The absorbed useful power by MPPT is about 4% higher than the constant mass ow rate case. Reduction of the convective heat transfer by locating the evacuated tube collectors inside a cavity leads to 12% more power and 25% temperature enhancement in the 3D model concerning MPPT-based analytical results. Then, the evacuated collector in a cavity with MPPT control has about 16% power gain.

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“…To figure out the irradiance distribution of the concentrator, both theoretical and experimental methods can be used. Theoretically, ray tracing simulation is conducted based on Monte Carlo Ray Tracing method either by programming [3] [4] [5] or using software such as LightTools [6], Zemax [7], Tonatiuh [8] and TracePro [9]. However, ray tracing simulation is somewhat ideal and does not coincide with practical setup where manufacture and installation errors are inevitable.…”

Section: Introductionmentioning

confidence: 99%

Design and study of an irradiance distribution measuring method based on a photodiode array

Zhang,

Wei

2021

Preprint

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In this work, an irradiance distribution measuring method based on a photodiode array was proposed to measure the irradiance distribution of truncated compound parabolic concentrators (CPCs). Firstly, truncated CPCs were designed and 3-D printed. Then twelve photodiodes were soldered on a printed circuit board to measure the irradiance distribution of CPCs. Besides, a box was manufactured to support the board and CPCs. Irradiance distribution of CPCs was measured under the illumination of Oriel AAA class solar simulator. Corresponding non-uniform factors of irradiance profiles of CPCs were evaluated based on the concept of standard deviation. Experimental results were compared with simulated irradiance profiles of CPCs. A maximum relative error of 13.1% was found between experimental and theoretical results, which verified the feasibility of the proposed photodiode array based irradiance distribution measuring method.

show abstract

Experimental and computational fluid dynamics investigations of tracking CPC solar collectors

Cited by 17 publications

References 35 publications

Solar thermal energy

Solar thermal energy

Thermal analysis of the designed CPC and its efficiency improvement by MPPT control

Design and study of an irradiance distribution measuring method based on a photodiode array

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