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Interstitially Insulated Coaxial Pipe: Analytical and Experimental Studies of the Performance Characteristics for and Interstitially Insulated Coaxial Pipe. Final Project Report - Phases Two and Three.
| 题名： | Interstitially Insulated Coaxial Pipe: Analytical and Experimental Studies of the Performance Characteristics for and Interstitially Insulated Coaxial Pipe. Final Project Report - Phases Two and Three. |
| 作者： | D. K. Kim; E. Marotta; S. Fletcher; |
| 关键词： | pipeline insulatino,oil pipelines,thermal resistance,crude oil temperatures/waxes, performance characteristics, analytical models, experimental investigations, heat transfer, crude oil/waxes, performance characteristics, analytical models, experimental investigations, heat transfer, crude oil |
| 摘要： | Oil consumption has been steadily increasing around the world; consequently, the petroleum industries have been endeavoring to keep up with the demand through exploration in deeper ocean environments. At current seafloor depths, pipeline insulation is essential to prevent pipeline blockage resulting from the solidification of paraffin waxes that exist as in the crude oil. To maintain crude oil temperatures above the paraffin solidification point, new and better insulation techniques are essential to minimize pipeline heat loss and maintain crude oil temperatures. The main objective of this project was to determine whether or not the thermal resistance of a new insulation concept involving interstitial screen-wire insulation would translate directly into comparable values for a prototype fabricated pipe segment. In other words, whether the reduction in heat transfer observed for small laboratory samples was realistic for application to a pipeline configuration. This phase of the project involved both an analytical modeling study and a series of experimental verification tests. The analytical model for the interstitial insulation contained both conforming and nonconforming interfaces within the wire screen contacts in the interstitial space between the coaxial pipes. The experimental study of this novel insulation technology consisted of a prototype coaxial pipe fabricated with two layers of low conductivity wire-screen (stainless steel) as the interstitial insulation material. Both the inner and outer surface temperatures of the coaxial pipes were measured in order to evaluate the effective thermal conductivity and thermal diffusivity of the insulation concept. / Supplementary Notes: Sponsored by Minerals Management Service, Herndon, VA. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A07 / Project Number: 509 / Corporate Author Code: 043127060 / Classifivation: Unclassified report |
| 报告类型： | 科技报告 |
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