An experimental energy and exergy analysis of uniform and step heat flux effects on heat transfer over of circular cross-section tube

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Abadeh Abazar; PASSANDIDEH FARD MOHAMMAD; MAGHREBI MOHAMMAD JAVAD

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:4 Page(s): 201-210

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Title

An experimental energy and exergy analysis of uniform and step heat flux effects on heat transfer over of circular cross-section tube

Author(s)

Abadeh Abazar | PASSANDIDEH FARD MOHAMMAD | MAGHREBI MOHAMMAD JAVAD | Issue Writer Certificate

Keywords

Heat fluxQ1

Heat transfer coefficient enhancementQ1

Fluid flowQ2

ExergyQ1

EnergyQ2

Abstract

Heat transfer enhancement is widely applicable in various industries, specifically in heat exchangers. Optimizing of heat transfer in the absence of increased pumping Energy will result in increased of total efficiency in different systems. In this paper, forced convection heat transfer and Fluid flow of fully developed laminar regime in a horizontal tube under uniform and non-uniform step Heat fluxes is investigated experimentally. The effect of uniform, non-uniform increasing and decreasing applied Heat fluxes on heat transfer and Fluid flow are investigated. The effect of various parameters on heat transfer and Fluid flow characteristics in these models are reported. Uncertainty analysis is performed and acceptable maximum of 1. 8 percent is acquired. The primary results compared to well-known Shah and London equation for validation and maximum error of 8. 5 percent is reported. In the present paper, Energy and Exergy are two approach of analyzing. Convection Heat transfer coefficient enhancement of 19. 3 and 22. 3 percent compared with model 1 are reported for model 2 and 3 respectively, in Energy analysis. Furthermore, in this paper, Exergy analysis is done and irreversibility values of 0. 0887, 0. 0803 and 0. 1037 are reported for model 1, model 2 and model 3 respectively. Finally, it is concluded that the model number 3 is the best way to enhance heat transfer because of the maximum averaged Nusselt number and the minimum entropy generation values.

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APA: Copy

Abadeh, Abazar, PASSANDIDEH FARD, MOHAMMAD, & MAGHREBI, MOHAMMAD JAVAD. (2018). An experimental energy and exergy analysis of uniform and step heat flux effects on heat transfer over of circular cross-section tube. MODARES MECHANICAL ENGINEERING, 18(4 ), 201-210. SID. https://sid.ir/paper/179494/en

Vancouver: Copy

Abadeh Abazar, PASSANDIDEH FARD MOHAMMAD, MAGHREBI MOHAMMAD JAVAD. An experimental energy and exergy analysis of uniform and step heat flux effects on heat transfer over of circular cross-section tube. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(4 ):201-210. Available from: https://sid.ir/paper/179494/en

IEEE: Copy

Abazar Abadeh, MOHAMMAD PASSANDIDEH FARD, and MOHAMMAD JAVAD MAGHREBI, “An experimental energy and exergy analysis of uniform and step heat flux effects on heat transfer over of circular cross-section tube,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 4 , pp. 201–210, 2018, [Online]. Available: https://sid.ir/paper/179494/en

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