Assessment of the Thermo-Hydraulic Efficiency of an Indoor-Designed Jet Impingement Solar Thermal Collector Roughened with Single Discrete Arc-Shaped Ribs

Raj Kumar, Erdem Cuce, Sushil Kumar, Sashank Thapa, Paras Gupta, Bhaskar Goel, C. Ahamed Saleel and Saboor Shaik
Additional contact information
Raj Kumar: Faculty of Engineering and Technology, Shoolini University, Solan 173229, India
Erdem Cuce: Department of Mechanical Engineering, Faculty of Engineering and Architecture, Zihni Derin Campus, Recep Tayyip Erdogan University, Rize 53100, Turkey
Sushil Kumar: Department of Physics, Hansraj College, University of Delhi, New Delhi 110007, India
Sashank Thapa: Faculty of Engineering and Technology, Shoolini University, Solan 173229, India
Paras Gupta: Faculty of Engineering and Technology, Shoolini University, Solan 173229, India
Bhaskar Goel: Faculty of Engineering and Technology, Shoolini University, Solan 173229, India
C. Ahamed Saleel: Department of Mechanical Engineering, College of Engineering, King Khalid University, P.O. Box 394, Abha 61421, Saudi Arabia
Saboor Shaik: School of Mechanical Engineering, Vellore Institute of Technology, Vellore 632014, India

Sustainability, 2022, vol. 14, issue 6, 1-18

Abstract: This study illustrates the impact of single discrete arc-shaped ribs (SDASR)-type artificial roughness on the performance of a jet impingement solar thermal collector (JISTC). The impact of parametric variations of SDASR on the Nusselt number ( N u s d r ) , friction factor ( f s d r ) , and thermohydraulic performance ( η s d r ) is examined. The spacer length ( S s d r ) of the SDASR was changed from 0 mm to 300 mm in stages of 100 mm during the experiment. The fixed parameters of the SDASR were a relative discrete distance D d / L v of 0.67, relative discrete width g w / H r of 0.87, relative rib height H r / H of 0.047, relative rib pitch P r / H of 1.7, angle of an arc α s d r of 60°, jet diameter ratio D j / D h y of 0.065, streamwise pitch ratio X / D h y of 1.72, and spanwise pitch ratio Y / D h y of 0.82. The Reynolds number R e was altered from 3000 to 19,000. The N u s d r and f s d r of a JISTC with a roughened absorber plate was found to be enhanced by 5.25 and 5.98 times as compared to an STC without artificial roughness. The optimal findings of N u s d r , f s d r , and η s d r were achieved at S s d r = 0 mm. The maximum value of the η s d r obtained at S s d r = 0 mm was 2.9.

Keywords: solar thermal collector; spacer length; friction factor; single discrete arc-shaped ribs; thermo-hydralic performance (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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