Annual Progress Report of Methods to Increase Burnout Heat Transfer

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Description

"Acoustic energy generated by mechanical or electrical signals and its effect on pool boiling of isopropanol were studied. Daring the course of the investigation, a method was devised to determine the amount of heat-transfer surface wetted by the boiling isopropanol. Plots of heat flux versus temperature difference for each frequency showed that the acoustic energy did not significantly affect the heat flux at burnout, but slightly increased the critical temperature difference. No general effect of frequency variation was found even at the frequencies of the "boiling songs" of isopropanol. The over- all effect of the acoustic energy was to disturb … continued below

Physical Description

ii, 67 pages : illustrations, tables, photographs

Creation Information

Markels, Michael; Durfee, Robert L. & Richardson, Robert September 30, 1960.

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"Acoustic energy generated by mechanical or electrical signals and its effect on pool boiling of isopropanol were studied. Daring the course of the investigation, a method was devised to determine the amount of heat-transfer surface wetted by the boiling isopropanol. Plots of heat flux versus temperature difference for each frequency showed that the acoustic energy did not significantly affect the heat flux at burnout, but slightly increased the critical temperature difference. No general effect of frequency variation was found even at the frequencies of the "boiling songs" of isopropanol. The over- all effect of the acoustic energy was to disturb the vapor tending te coat the heat transfer surface. This was most evident from the absence of film boiling even at temperature differences far above the critical temperature difference. The application of alternating current to the boiling system gives promise of a self-regulating method to increase boiling heat transfer when required, and is the most significant new finding of this investigation. Two pertinent Russian papers were translated and are appended."

Physical Description

ii, 67 pages : illustrations, tables, photographs

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Digitized from microopaque cards (1).

Contract AT(30-1)-2404, Task II.

Includes bibliographical references (page 33)

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  • OCLC: #
  • SuDoc Number: Y 3.At 7:22/NYO-9500
  • Report No.: NYO-9500
  • Accession or Local Control No: metadc1463626
  • Archival Resource Key: ark:/67531/metadc1463626

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  • September 30, 1960

Added to The UNT Digital Library

  • Sept. 2, 2021, 4:32 p.m.

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  • Sept. 11, 2023, 2:57 p.m.

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Markels, Michael; Durfee, Robert L. & Richardson, Robert. Annual Progress Report of Methods to Increase Burnout Heat Transfer, report, September 30, 1960; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1463626/: accessed August 18, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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