{"id":9265,"date":"2020-12-21T18:06:42","date_gmt":"2020-12-21T18:06:42","guid":{"rendered":"https:\/\/insulation.org\/?page_id=9265"},"modified":"2021-07-27T14:36:10","modified_gmt":"2021-07-27T14:36:10","slug":"condensation-control-calculator-for-horizontal-pipe","status":"publish","type":"page","link":"https:\/\/insulation.org\/training-tools\/designguide\/simple-calculators\/condensation-control-calculator-for-horizontal-pipe\/","title":{"rendered":"Condensation Control Calculator For Horizontal Pipe"},"content":{"rendered":"
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This Calculator estimates the thickness of insulation required to prevent condensation on the outer surface of an insulation system.<\/p>\n

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INSTRUCTIONS<\/h4>\n
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  • Line 1. Select Nominal Pipe Size, NPS<\/li>\n
  • Line 2. Enter average operating (process) temperature<\/li>\n
  • Line 3. Enter average temperature of the air surounding the pipe<\/li>\n
  • Line 4. Enter relative humidity of the ambient air<\/li>\n
  • Line 5. Enter the wind speed of the ambient air (if unknown, use 0 mph for worst case conditions)<\/li>\n
  • Line 6. Select an insulation material<\/li>\n
  • Line 7. Select the effective emittance of the exterior surface<\/li>\n<\/ul>\n

    Notes<\/strong>: Condensation control thickness is highlighted. (The thickness that provides average surface temperature > Dew Point + a safety factor of 0.75\u00b0F)<\/p>\n

    NA = Not Available. Some sizes and thicknesses may not be commercially available and some materials are available in sizes and thicknesses not listed.<\/p>\n

    ASSUMPTIONS<\/h4>\n
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    • One dimensional, steady state heat transfer<\/li>\n
    • Base structure is a horizontal steel pipe<\/li>\n
    • Thermal conductivity based on ASTM Specification Values. Refer to the introductory notes for further clarifications.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\t\t