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Titolo:
Thermal performance analysis for solid and perforated blocks attached on afiat surface in duct flow
Autore:
Sara, ON; Pekdemir, T; Yapici, S; Ersahan, H;
Indirizzi:
Ataturk Univ, Fac Engn, TR-25240 Erzurum, Turkey Ataturk Univ Erzurum Turkey TR-25240 Fac Engn, TR-25240 Erzurum, Turkey
Titolo Testata:
ENERGY CONVERSION AND MANAGEMENT
fascicolo: 10, volume: 41, anno: 2000,
pagine: 1019 - 1028
SICI:
0196-8904(200007)41:10<1019:TPAFSA>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAT-TRANSFER ENHANCEMENT; FRICTION; WALLS; RIBS;
Keywords:
thermal performance; forced convection; heat transfer; heat transfer enhancement; duct flow; rectangular blocks;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_BC--
Citazioni:
12
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., "Thermal performance analysis for solid and perforated blocks attached on afiat surface in duct flow", ENERG CONV, 41(10), 2000, pp. 1019-1028

Abstract

The thermal performances of solid and perforated rectangular blocks attached on a flat surface in a rectangular duct were determined with respect to the heat transfer from the same plate without blocks. The data used in the performance analyses were obtained experimentally for varying flow and geometrical conditions. It was found that the solid blocks generated a net energy loss despite significantly enhanced heat transfer due to the increased heat transfer surface area. When the blocks were perforated, the loss in thenet energy was recovered and depending on the geometrical and flow conditions, a net gain in energy, up to 20%, was achieved. For both the solid and the perforated blocks, increases in Reynolds number led to decreases in theperformance. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:38:29