Research Article
Feb 1970
Effect of Coating on Thermal Conductivity of Pipes
Author: P. MahmoodiAuthor Affiliations
Publication: Transportation Engineering Journal of ASCE
Volume 96, Issue 1
Abstract
The effect of internal and external coating on overall thermal conductivity of pipes of different diameters and thicknesses is described. A number of examples with pipes of different materials and coatings of various thicknesses are considered. The term conduction factor is defined, and results are presented in the form of curves relating the conduction factor to coating thickness for different parameters. Tests show that internal coating is superior from the standpoint of the insulating characteristic of the system. If the pipe is used as a heat-transfer medium, coating is a detrimental factor. For external corrosion protection, the coating should be applied externally, as thinly as possible. Internal coating is advantageous for the transfer of steam, fuel, gas and other similar materials, as the coating reduces internal corrosion and serves as a better insulator than an equal thickness of exterior coating. The basic problem is the cost of uniform coating application, besides the mentioned factors.
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Published In
Transportation Engineering Journal of ASCE
Volume 96 • Issue 1 • February 1970
Pages: 71 - 78
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Feb 1970
Published online: Feb 5, 2021
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Authors
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P. Mahmoodi
Sr. Res. Specialist, Central Res. Labs., 3M Co., St. Paul, Minn.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.