Thermal performance modeling of unglazed transpired solar collectors

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Motahar Sadegh

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Journal Paper

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Journal: Modeling in Engineering Year:2019 | Volume:16 | Issue:55 Page(s): 391-400

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Information Journal Paper

Title

Thermal performance modeling of unglazed transpired solar collectors

Author(s)

Motahar Sadegh | Issue Writer Certificate

Keywords

solar collectorQ1

transpired platesQ1

ModelingQ2

thermal performanceQ1

thermal efficiencyQ1

outlet temperatureQ1

Abstract

Unglazed transpired solar collectors (UTCs) are solar air heating collectors that used for preheating air in ventilation systems or producing hot air for drying systems. thermal performance of UTCs is a function of various parameters including incident solar radiation, air approach velocity, diameter and pitch of perforations. Modeling predicts the thermal performance of UTCs over a wide range of design and operating conditions. This paper presents the details of Modeling for UTC using heat transfer expressions for the collector components and energy balances. The effects of key parameters on the performance of a UTC were studied by varying the approach velocity, solar radiation, diameter and pitch of perforations and finding their influence on collector thermal efficiency, heat exchange effectiveness and outlet air temperature. Results showed that the UTC thermal efficiency increases by increase in solar radiation and approach velocity, but the efficiency decreases by increasing plate hole diameters and pitch.

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APA: Copy

Motahar, Sadegh. (2019). Thermal performance modeling of unglazed transpired solar collectors. JOURNAL OF MODELING IN ENGINEERING, 16(55 ), 391-400. SID. https://sid.ir/paper/361792/en

Vancouver: Copy

Motahar Sadegh. Thermal performance modeling of unglazed transpired solar collectors. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2019;16(55 ):391-400. Available from: https://sid.ir/paper/361792/en

IEEE: Copy

Sadegh Motahar, “Thermal performance modeling of unglazed transpired solar collectors,” JOURNAL OF MODELING IN ENGINEERING, vol. 16, no. 55 , pp. 391–400, 2019, [Online]. Available: https://sid.ir/paper/361792/en

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