Investigation of Mechanical Methods of Scale Removal from HRT Heat Exchangers

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Description

Tests were conducted to determine methods of removing scale deposits from the HRT heat exchangers. A mockup of the heat exchanger header was cleared of a deposit of iron rust by reverse flushing at a flow rate below 75 gpm. A tube bundle consisting of 109 1/4in. O.D. x 0.049 in. wall tubes was plugged with rust. Approximately 80% of these tubes were unplugged by using a 70 psi water pressure differential in combination with vibration from a pneumatic rivet gun. No mechanical method was employed in the tests which could clear the remaining tubes.

Physical Description

8 pages : illustrations

Creation Information

Gabbard, C. H.; Eissenberg, D. M.; Moyers, J. C. & Namba, I. K. July 21, 1959.

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  • Main Title: Investigation of Mechanical Methods of Scale Removal from HRT Heat Exchangers
  • Series Title: Oak Ridge National Laboratory Reports
  • Added Title: Oak Ridge National Laboratory Report CF-59-7-102

Description

Tests were conducted to determine methods of removing scale deposits from the HRT heat exchangers. A mockup of the heat exchanger header was cleared of a deposit of iron rust by reverse flushing at a flow rate below 75 gpm. A tube bundle consisting of 109 1/4in. O.D. x 0.049 in. wall tubes was plugged with rust. Approximately 80% of these tubes were unplugged by using a 70 psi water pressure differential in combination with vibration from a pneumatic rivet gun. No mechanical method was employed in the tests which could clear the remaining tubes.

Physical Description

8 pages : illustrations

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Digitized from microopaque cards (1).

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  • Report No.: CF-59-7-102
  • SuDoc Number: Y 3.At 7:22/CF-59-7-102
  • Accession or Local Control No: metadc1241063
  • Archival Resource Key: ark:/67531/metadc1241063

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TRAIL Microcard Collection

Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • July 21, 1959

Added to The UNT Digital Library

  • July 9, 2023, 5:45 p.m.

Description Last Updated

  • Nov. 27, 2023, 5:03 p.m.

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Gabbard, C. H.; Eissenberg, D. M.; Moyers, J. C. & Namba, I. K. Investigation of Mechanical Methods of Scale Removal from HRT Heat Exchangers, report, July 21, 1959; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1241063/: accessed February 9, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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