文章基本信息

标题：Mathematical Modeling of Efficiency Evaluation of Double-Pass Parallel Flow Solar Air Heater
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作者：Singh, Varun Pratap ; Jain, Siddharth ; Karn, Ashish 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2022
卷号：14
期号：17
页码：1-22
DOI：10.3390/su141710535
语种：English
出版社：MDPI, Open Access Journal
摘要：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.
关键词：solar energy; solar air heater; mathematical modelling; parameter optimization; double pass