Irreversibility analysis of induced swirl flow inside the pipes of flat-plate solar collector using dual tangential nozzles-Reference-Cited by-同舟云学术

Irreversibility analysis of induced swirl flow inside the pipes of flat-plate solar collector using dual tangential nozzles

Published:2022 Issue: Volume:17 Page:222-232
ISSN:1748-1325
Container-title:International Journal of Low-Carbon Technologies
language:en
Short-container-title:

Author:

Cao Yan¹,Ayed Hamdi²,Issakhov Alibek³,Sene Ndolane⁴,Bouallegue Belgacem⁵

Affiliation:

1. School of Computer Science and Engineering, Xi'an Technological University, Xi'an 710021, China

2. Department of Civil Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia

3. Department of Mathematical and Computer Modelling, al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan

4. Département de Mathématiques de la Décision, Université Cheikh Anta Diop de Dakar, Faculté des Sciences Economiques et Gestion, BP 5683 Dakar Fann, Senegal

5. Department of Computer Engineering, College of Computer Science, King Khalid University, Abha, Saudi Arabia

Abstract

Abstract In the present research, dual-nozzle swirl generator was installed at the blocked end of the straight tube to inject flow tangential to the wall of the pipe with various injection inclinations compared to the longitudinal axis. This causes a swirl flow inside the pipe. Altering some decisive variables, including injection angle, side of nozzle cross-section, pipe diameter, and flow rate, caused to attain various cases with unique hydraulic-geometrical characteristics. Classes ‘A…-D50-N…-M…’ and ‘A…-D20-N…-M…’ bear the main characteristics of the cases embodied in their sub-classes. Entropy generation (St), Nu*, NE, Heat Transfer Improvement (HTI) index and ${\eta}_{w-s}$ were used as effective tools for the basement of the system based on the irreversibility concept. The results showed that all of the cases of class ‘A…-D50-N…-M…’ cause lower frictional-contributed and higher thermal-contributed entropy generation compared to the class ‘A…-D20-N…-M…’. The highest values of the HTI index are 1.5 and 1.763 obtained by ‘A30-D20-N5-M0.4’ and ‘A90-D20-N6.25-M0.1’, respectively.

Publisher

Oxford University Press (OUP)

Subject

General Environmental Science,Architecture,Civil and Structural Engineering

Link

https://academic.oup.com/ijlct/article-pdf/doi/10.1093/ijlct/ctab083/42446782/ctab083.pdf

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