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Titolo:
Second law analysis of rectangular channels with square pin-fins
Autore:
Sara, ON; Yapici, S; Yilmaz, M; Pekdemir, T;
Indirizzi:
Ataturk Univ, Fac Engn, TR-25240 Erzurum, Turkey Ataturk Univ Erzurum Turkey TR-25240 Fac Engn, TR-25240 Erzurum, Turkey Heriot Watt Univ, Dept Mech & Chem Engn, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS lothian, Scotland
Titolo Testata:
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
fascicolo: 5, volume: 28, anno: 2001,
pagine: 617 - 630
SICI:
0735-1933(200107)28:5<617:SLAORC>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAT-TRANSFER; ARRAYS; FLOW; FRICTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Sara, ON Ataturk Univ, Fac Engn, TR-25240 Erzurum, Turkey Ataturk Univ Erzurum Turkey TR-25240 , TR-25240 Erzurum, Turkey
Citazione:
O.N. Sara et al., "Second law analysis of rectangular channels with square pin-fins", INT COMM HE, 28(5), 2001, pp. 617-630

Abstract

This paper presents heat transfer and friction characteristics, and the second law analysis of the convective heat transfer through a rectangular channel with square cross-sectional pinfins attached over a flat surface. Various clearance ratios (C/H) and interfin distance ratios (S-x/D) were used, and optimum pin-fin arrays that minimize entropy generation were determined. It was found that (Nu) over bar number based on the projected area decreased with increasing S-x/D and C/H, whereas (Nu) over bar based on the totalheat transfer area increased with increasing S-x/D and with decreasing C/H. The friction factor was found to decrease with increasing S-x/D and C/H. Smaller entropy generation numbers were obtained at lower Reynolds number, higher clearance ratio, and higher interfin spacing ratio. (C) 2001 Elsevier Science Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 15:44:00