Exergy based analysis of solar air heater duct with W-shaped rib roughness on the absorber plate

• Autorzy: Patel Sumer Singh , Lanjewar Atul

Identyfikatory

DOI

10.24425/ather.2019.130006

• Języki publikacji: EN

Abstrakty

EN

Exergy analysis is a powerful thermodynamic tool and it helps in computing the actual output of a system. It helps the researchers to optimize the roughened solar air heater design to compensate the present and also the future needs. In this study, investigation on exergetic performance evaluation of a solar air heater with W-shaped roughened absorber surface analytically by employing mathematical model and the results obtained are compared with smooth plate solar air heater under same operating conditions. The exergetic efficiency curves has been plotted as a function of different values of Reynolds number and temperature rise parameter for different roughness parameters. The maximum augmentation in the exergetic efficiency of the solar air heater with W-shaped roughened surface as compared to solar air heater with smooth surface has been obtained as 51% corresponding to the relative roughness height of 0.03375 and the rib angle of attack about 60°. Based on the exergetic efficiency the suitable design parameters of solar air heater with W-shaped roughened are determined.

Słowa kluczowe

EN

solar air heater; W-shape rib; exergetic efficiency; Reynolds number; thermal efficiency; temperature rise parameter

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2019
• Tom: Vol. 40, no 4
• Strony: 21--48
• Opis fizyczny: Bibliogr. 45 poz., rys., tab., wykr., wz.

Twórcy

autor

Patel Sumer Singh

• Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal 462051, Madhya Pradesh, India

autor

Lanjewar Atul

• Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal 462051, Madhya Pradesh, India

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).