dc.creator | Witwer, Jeffrey G. | |
dc.creator | Sommers, Dan W. | |
dc.date.accessioned | 2019-02-08T23:33:25Z | |
dc.date.available | 2019-02-08T23:33:25Z | |
dc.date.issued | 1973 | |
dc.identifier.govdoc | FHWA-OK | |
dc.identifier.other | Oklahoma Department of Transportation State Planning and Research | |
dc.identifier.uri | https://hdl.handle.net/11244/317190 | |
dc.description.abstract | Sufficient heat can be transported from the surrounding ground to a bridge deck by heat pipes to both reduce the number of freeze-thaw cycles and to reduce the time during which the surface is below freezing. In a computer model of the thermal response of a bridge during a sample month, the use of heat pipes spaced six inches apart reduced the number of freeze-thaw cycles by 58% and the time that the surface was below freezing by 87%. While even higher performance is possible, economic and structural constraints will certianly preclude the elimination of all freezing. A screen covered groove heat pipe using ammonia as a working fluid appears to yield the best performance. Computer models are presented to analyse the performance of such heat pipes and to predict the thermal response of a highway bridge with heat pipes to either idealized or actual meteorological conditions. Recommendations are made for further work. | |
dc.format.extent | 64 pages | |
dc.format.extent | 10,101,058 bytes | |
dc.format.medium | application.pdf | |
dc.language | en_US | |
dc.relation.ispartofseries | No | |
dc.relation.requires | Adobe Acrobat Reader | |
dc.title | The use of heat pipes to prevent ice formation on highway bridge decks | |
dc.type | Technical Report | |
dc.description.peerreview | No | |
dc.type.material | text | |
dc.contributor.sponsor | Oklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation | |