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ANALYTICAL STUDY OF THERMAL PERFORMANCE OF A JET PLATE SOLAR AIR HEATER WITH THE LONGITUDINAL FINS UNDER THE CROSS FLOW AND NON-CROSS FLOW CONDITIONS

Rajen Kumar Nayaka,* , Ravi Shankar Prasada,† , Ujjwal Kumar Nayaka, Amit Kumar Guptab

a Department of Mechanical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand PIN 828123 India
b Department of Chemical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand PIN 828123 India
* Department of Mechanical Engineering, B.I.T. Sindri, P.O.: Sindri Institute, Sindri, Dhanbad, Jharkhand PIN 828123 India
† Corresponding author. Email: rsprasad.me@bitsindri.ac.in

Frontiers in Heat and Mass Transfer 2022, 19, 1-12. https://doi.org/10.5098/hmt.19.7

Abstract

This analytical study has been carried out on inline and staggered hole jet plate solar air heater with longitudinal fins attached underside the absorber surface under the cross flow and non-cross flow conditions of air through the channels for varying mass flow rate of air, ṁ1 (50-300 kg/hm2 ), jet hole diameter, D (6 mm-10 mm) and distance between the absorber and jet plate, Z2 (5 cm-10 cm) with fixed number of jet holes, N (480 and 1008 for inline and staggered hole respectively) and pitch of the fins, p (3 mm). The result shows the performance of staggered hole jet plate solar air heater with longitudinal fins under non-cross flow is better than cross flow condition. The increment of To and hPj are found higher in non-cross flow staggered hole jet plate solar air heater with longitudinal fins at smaller jet hole diameter, D (6 mm) than larger jet hole diameter, D (8 mm and 10 mm) for fixed ṁ1 (50 kg/hm2 ). For fixed mass flow rate of air, ṁ1 (50-300 kg/hm2 ), the outlet air temperature (To) and collector efficiency (ηc) are obtained higher at lower Z2 (5 cm) with respect to larger Z2 (6 cm-10 cm). For the fixed Reynolds number (Reja2), the required pumping power may be less or high in non-cross flow staggered hole jet plate than non-cross flow inline hole jet plate air heater with longitudinal fins attached underside the absorber surface.

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APA Style
Nayak , R.K., Prasad , R.S., Nayak, U.K., Gupta, A.K. (2022). ANALYTICAL STUDY OF THERMAL PERFORMANCE OF A JET PLATE SOLAR AIR HEATER WITH THE LONGITUDINAL FINS UNDER THE CROSS FLOW AND NON-CROSS FLOW CONDITIONS. Frontiers in Heat and Mass Transfer, 19(1), 1-12. https://doi.org/10.5098/hmt.19.7
Vancouver Style
Nayak RK, Prasad RS, Nayak UK, Gupta AK. ANALYTICAL STUDY OF THERMAL PERFORMANCE OF A JET PLATE SOLAR AIR HEATER WITH THE LONGITUDINAL FINS UNDER THE CROSS FLOW AND NON-CROSS FLOW CONDITIONS. Front Heat Mass Transf. 2022;19(1):1-12 https://doi.org/10.5098/hmt.19.7
IEEE Style
R.K. Nayak , R.S. Prasad , U.K. Nayak, and A.K. Gupta "ANALYTICAL STUDY OF THERMAL PERFORMANCE OF A JET PLATE SOLAR AIR HEATER WITH THE LONGITUDINAL FINS UNDER THE CROSS FLOW AND NON-CROSS FLOW CONDITIONS," Front. Heat Mass Transf., vol. 19, no. 1, pp. 1-12. 2022. https://doi.org/10.5098/hmt.19.7



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