EXAMINATION OF EARTH HEAT PIPES AT FAIRBANK HIGHWAY RESEARCH STATION
This report describes test and evaluation efforts conducted to determine the performance and degradation of selected heat pipes installed in the pavement deicing system at Fairbank Highway Research Station (FHRS). The primary objectives of this study were: (1) determine the amount of heat that an individual heat pipe can extract from the earth and (2) establish the cause of degraded performance exhibited by many of the heat pipes at FHRS. A calorimetric system capable of extracting and measuring thermal energy was designed and used to test individual heat pipes. The heat pipes' behavior during test and the test results demonstrate conclusively that the degraded performance was due to gas blockage of the condenser section.
B and K Engineering, Incorporated1 Investment Place
Towson, MD United States 21204
Washington, DC United States 20590
- Suelau, H J
- Publication Date: 1975-7
- Pagination: 21 p.
- TRT Terms: Deicing; Heat pipes; Heat transfer; Heating; Highways; Ice prevention; Measurement; Pavements; Piping systems; Temperature measurement
- Subject Areas: Highways; Pavements; Research;
- Accession Number: 00094496
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA-RD-75-125 Final Rpt., BK006-1001
- Files: TRIS, USDOT
- Created Date: Apr 21 1977 12:00AM