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Titolo:
On the criteria of nucleate pool boiling enhancement by surfactant addition to water
Autore:
Yang, YM; Maa, JR;
Indirizzi:
Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan Natl Cheng KungUniv Tainan Taiwan 70101 Chem Engn, Tainan 70101, Taiwan
Titolo Testata:
CHEMICAL ENGINEERING RESEARCH & DESIGN
fascicolo: A4, volume: 79, anno: 2001,
pagine: 409 - 416
SICI:
0263-8762(200105)79:A4<409:OTCONP>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
AQUEOUS SURFACTANT; HEAT-TRANSFER;
Keywords:
boiling enhancement criteria; surfactant additive; solubility; surface tension; contact angle;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Yang, YM Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan Natl Cheng Kung Univ Tainan Taiwan 70101 , Tainan 70101, Taiwan
Citazione:
Y.M. Yang e J.R. Maa, "On the criteria of nucleate pool boiling enhancement by surfactant addition to water", CHEM ENG R, 79(A4), 2001, pp. 409-416

Abstract

By testing against collected data from twelve surfactant additives, criteria for a given surfactant as a competent additive in enhancing nucleate boiling heat transfer of water is proposed in this work. As a result of the criteria, high solubility, high equilibrium surface tension depression, and low equilibrium contact angle depression are required. A surfactant is incapable of enhancing boiling of water, in which it dissolves sparsely. For a highly soluble surfactant, boiling heat transfer enhancement by its additionis enhanced by the depression of equilibrium surface tension but suppressed by the depression of equilibrium contact angle. These two effects counterbalance each other and result in different degrees of boiling enhancement. Surfactant additives can be categorized accordingly.

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Documento generato il 13/07/20 alle ore 14:41:35