Interim Report -- The Retention of Particles in Ducts Transporting Aerosol Streams

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Description

Accurate sampling of particulate in gaseous effluents is required for auditing and control of radioactive wastes released to the environment at installations generating or processing radioactive materials. Over the years a variety of sampling probe configurations, sampling velocities, lengths and sizes of sample delivery lines have been used locally to obtain these samples. Efforts to properly evaluate the validity of samples in most sampling installations have been hampered by a lack of basic knowledge of particle behavior under the various conditions imposed. Important variables about which minimal knowledge is available are those of particle impaction and retention on and re-entrainment … continued below

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12 pages : illustrations

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Postma, A. K. & Schwendiman, L. C. February 1, 1960.

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This report is part of the collection entitled: TRAIL Microcard Collection and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Main Title: Interim Report -- The Retention of Particles in Ducts Transporting Aerosol Streams
  • Series Title: HW (Series)
  • Series Title: Hanford Works Reports
  • Added Title: Hanford Works Report HW-62958

Description

Accurate sampling of particulate in gaseous effluents is required for auditing and control of radioactive wastes released to the environment at installations generating or processing radioactive materials. Over the years a variety of sampling probe configurations, sampling velocities, lengths and sizes of sample delivery lines have been used locally to obtain these samples. Efforts to properly evaluate the validity of samples in most sampling installations have been hampered by a lack of basic knowledge of particle behavior under the various conditions imposed. Important variables about which minimal knowledge is available are those of particle impaction and retention on and re-entrainment from the walls of sampling lines. In some sampler configurations the effect of these parameters on sampling validity may be made negligible, but in lines already in place. or where long sampling lines are required, the degree to which deposition affects the sampling validity must be established. Deposition and rebuild up, then rapid release to the air stream. Research has been initiated in Hanford Laboratories Operation to provide the required data relative to deposition and retention on conduit walls and to eventually arrive at approved sampling system configurations.

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12 pages : illustrations

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Digitized from microopaque cards (1).

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  • SuDoc Number: Y 3.At 7:22/HW-62958
  • Report No.: HW-62958
  • Accession or Local Control No: metadc1255582
  • Archival Resource Key: ark:/67531/metadc1255582

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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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  • February 1, 1960

Added to The UNT Digital Library

  • Feb. 5, 2022, 7:02 p.m.

Description Last Updated

  • June 6, 2023, 2:09 p.m.

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Postma, A. K. & Schwendiman, L. C. Interim Report -- The Retention of Particles in Ducts Transporting Aerosol Streams, report, February 1, 1960; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1255582/: accessed September 30, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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