Accession Number : ADA140847


Title :   Heat Transfer Measurements of Internally Finned Rotating Heat Pipes.


Descriptive Note : Master's thesis,


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Nefesoglu,A


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA140847


Report Date : Dec 1983


Pagination or Media Count : 103


Abstract : A rotating cylindrical heat pipe was tested using various internally finned condensers and was compared with a smooth-wall cylinder. Each condenser was tested at rotational speeds of 700, 1400 and 2800 rpm with film condensation. Distilled water was used as the working fluid. The heat transfer rate of each condenser was plotted versus the driving temperature difference between the vapor saturation temperature and the cooling water inlet temperature. The objective of this investigation was to study the performance with various fin configurations and to find an optimum fin geometry. As expected, in all cases, performance was improved with increasing rpm. The performance of internally finned condensers was found to be as much as 230 percent greater than that of the smooth condenser. (Author)


Descriptors :   *Heat transfer , *Heat pipes , *Condensers(Liquefiers) , Test and evaluation , Test methods , Measurement , Condensation , Gases , Rotation , Velocity , Cylindrical bodies , Distilled water , Rates , Temperature , Vapors , Saturation , Cooling , Performance(Engineering) , Fins , Configurations , Evaporators , Theses


Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE