A review on recent developments in thermal performance enhancement methods of flat plate solar air collector

Vengadesan, Elumalai; Senthil, Ramalingam

doi:10.1016/j.rser.2020.110315

Cited by 124 publications

(22 citation statements)

References 231 publications

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“…The thermal efficiency of a solar collector is generally defined as the ratio of the energy transferred by a heat transfer medium over a period of time, to the product of a solar collector absorber area and the solar radiation incident on the solar collector under steady-state conditions. This ratio can be termed as an energy balance equation and has the form [43,44]:…”

Section: Methodsmentioning

confidence: 99%

Experimental Evaluation of an Innovative Non-Metallic Flat Plate Solar Collector

et al. 2021

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The present article deals with the concept of the non-metallic flat plate liquid solar collector and its evaluation. The innovative concept lies in the elimination of metal parts of the solar collector and their replacement by the foam glass block, which significantly reduces the energy and material demands of the production process. The evaluation of the collector took place in two phases, the first was focused on the numerical evaluation, which resulted in the compilation of a theoretical curve of the efficiency of the solar collector. The second phase was focused on verifying the basic functionality of the concept based on the results obtained from experimental tests of the collector, which confirmed the functionality of the concept and revealed several areas that will need to be addressed in the further development of the prototype.

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Section: Methodsmentioning

confidence: 99%

Experimental Evaluation of an Innovative Non-Metallic Flat Plate Solar Collector

et al. 2021

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“…These types of collectors have many attractive advantages over water heating collectors such as higher working pressure range, fewer problems of corrosion or leakage, and non-freezing behaviour J o u r n a l P r e -p r o o f 2 of air, etc. [1,2]. The worldwide distributions of solar thermal collectors based on type are as follows: vacuum tube heaters: 71.1%, flat plate collectors: 22.1%, unglazed water heaters: 6.3%, and solar air collectors 0.4% [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of a novel sand coated and sand filled polycarbonate sheet based solar air collector

Das¹,

Mondol²,

Negi³

et al. 2021

Renewable Energy

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…The use of triangular-shaped bodies in SAH was found to be active in enhancing the collector efficiency [24]. The different absorber configurations of SAH are reviewed, and more turbulence creators produced higher thermal performance [25]. Cavity absorbers were observed to be useful devices to absorb heat due to the increase in surface area.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Augmentation of Concentrated Solar Absorber Using Modified Surface Contour

Senthil

Chezian

Arsath

2021

Int. j. eng. technol. innov.

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This work aims to compare the cavity surface contour’s thermal performance to that of the solar absorber’s plain surface contour for Scheffler type parabolic dish collectors. The absorber is tested for the temperature range up to 600°C without working fluid and 180°C with the working fluid. The modified absorber surface's thermal performance is compared with the flat surface absorber with and without heat transfer fluid. The peak temperature reached by the surface modified absorber (534°C) is about 8.6% more than that of the unmodified absorber (492°C) during an outdoor test without fluid. The energy efficiency of cavity surface absorber and plain surface absorber are 67.65% and 61.84%, respectively. The contoured cavity surface produces a more uniform temperature distribution and a higher heat absorption rate than the plain surface. The results are beneficial to the design of high-temperature solar absorbers for concentrated solar collectors.

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A review on recent developments in thermal performance enhancement methods of flat plate solar air collector

Cited by 124 publications

References 231 publications

Experimental Evaluation of an Innovative Non-Metallic Flat Plate Solar Collector

Experimental Evaluation of an Innovative Non-Metallic Flat Plate Solar Collector

Experimental performance analysis of a novel sand coated and sand filled polycarbonate sheet based solar air collector

Heat Transfer Augmentation of Concentrated Solar Absorber Using Modified Surface Contour

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