Enhanced boiling heat transfer by surfactant additives

Wuu Tsann Wu, Yu Min Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

Small amount of surfactants in aqueous solution have been known to enhance the rate of nucleate boiling heat transfer of water significantly. However, the mechanism of this enhancement is still not clear. In this work, boiling incipience and vapor bubble growth dynamics of aqueous surfactant solutions of sodium lauryl sulfate at identified sites were studied in a pool boiling apparatus with tubular heater by determining the incipient superheat and by high speed photography. Fundamental information about the effects of surfactant additive on incipient superheat, bubble period, waiting period, growth period, and bubble departure size were obtained. Among these, incipient superheat and bubble waiting period are explained with good success by taking into consideration of surface tension depression and contact angle variation in Hsu's (1962) theory.

Original languageEnglish
Title of host publicationProc Eng Found Conf Pool External Flow Boiling
PublisherPubl by ASME
Pages361-366
Number of pages6
ISBN (Print)0791806677
Publication statusPublished - 1992
EventProceedings of the Engineering Foundation Conference on Pool and External Flow Boiling - Santa Barbara, CA, USA
Duration: 1992 Mar 221992 Mar 27

Other

OtherProceedings of the Engineering Foundation Conference on Pool and External Flow Boiling
CitySanta Barbara, CA, USA
Period92-03-2292-03-27

Fingerprint

Boiling liquids
Surface active agents
Heat transfer
High speed photography
Nucleate boiling
Sodium dodecyl sulfate
Bubbles (in fluids)
Contact angle
Surface tension
Vapors
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Wu, W. T., & Yang, Y. M. (1992). Enhanced boiling heat transfer by surfactant additives. In Proc Eng Found Conf Pool External Flow Boiling (pp. 361-366). Publ by ASME.
Wu, Wuu Tsann ; Yang, Yu Min. / Enhanced boiling heat transfer by surfactant additives. Proc Eng Found Conf Pool External Flow Boiling. Publ by ASME, 1992. pp. 361-366
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Wu, WT & Yang, YM 1992, Enhanced boiling heat transfer by surfactant additives. in Proc Eng Found Conf Pool External Flow Boiling. Publ by ASME, pp. 361-366, Proceedings of the Engineering Foundation Conference on Pool and External Flow Boiling, Santa Barbara, CA, USA, 92-03-22.

Enhanced boiling heat transfer by surfactant additives. / Wu, Wuu Tsann; Yang, Yu Min.

Proc Eng Found Conf Pool External Flow Boiling. Publ by ASME, 1992. p. 361-366.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Small amount of surfactants in aqueous solution have been known to enhance the rate of nucleate boiling heat transfer of water significantly. However, the mechanism of this enhancement is still not clear. In this work, boiling incipience and vapor bubble growth dynamics of aqueous surfactant solutions of sodium lauryl sulfate at identified sites were studied in a pool boiling apparatus with tubular heater by determining the incipient superheat and by high speed photography. Fundamental information about the effects of surfactant additive on incipient superheat, bubble period, waiting period, growth period, and bubble departure size were obtained. Among these, incipient superheat and bubble waiting period are explained with good success by taking into consideration of surface tension depression and contact angle variation in Hsu's (1962) theory.

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Wu WT, Yang YM. Enhanced boiling heat transfer by surfactant additives. In Proc Eng Found Conf Pool External Flow Boiling. Publ by ASME. 1992. p. 361-366