Mathematical Modeling of Efficiency Evaluation of Double-Pass Parallel Flow Solar Air Heater

Varun Singh, Siddharth Jain, Ashish Karn, Ashwani Kumar, Gaurav Dwivedi, Chandan Swaroop Meena () and Raffaello Cozzolino ()
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Siddharth Jain: Department of Mechanical Engineering, School of Engineering, University of Petroleum and Energy Studies India, Dehradun 248007, India
Ashish Karn: Department of Mechanical Engineering, School of Engineering, University of Petroleum and Energy Studies India, Dehradun 248007, India
Ashwani Kumar: Technical Education Department Uttar Pradesh, Kanpur 208024, India
Gaurav Dwivedi: Energy Centre, Maulana Azad National Institute of Technology, Bhopal 462003, India
Chandan Swaroop Meena: CSIR—Central Building Research Institute, Roorkee 247667, India
Raffaello Cozzolino: Department of Engineering, University of Rome Niccolò Cusano, 00166 Roma, Italy

Sustainability, 2022, vol. 14, issue 17, 1-22

Abstract: To investigate the influencing range and optimize values of different operational and system parameters on the double-pass parallel flow solar air heater’s (DPPFSAH) thermal, effective, and exergetic efficiencies, an iterative method was used to analyze the governing energy equations using a theoretical model written in MATLAB based on the Nusselt number (Nu) and friction factor (f) correlations developed in the work performed earlier. A comparison between double-pass and single-pass SAHs for mathematical and experimental outcomes was conducted, and the results were found to be fairly consistent. According to the thermo-hydraulic performance indicators, similar to single-pass SAHs, perforated multi-V rib-roughened DPPFSAHs achieve optimum thermal performance for lower Reynolds numbers, which does not change much as the Reynolds number increases above 18,000. This finding can be taken into account when designing any DPPFSAH.

Keywords: solar energy; solar air heater; mathematical modelling; parameter optimization; double pass (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 (6)

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