MARC record from Internet Archive

LEADER: 02637cam 2200325 a 45 0
001 ocm303405864
005 19950117122913.0
008 920226s1992 caua f00000 eng d
035 $9(XP)AAE6146
037 $aADA247786
040 $aCMontNP$cCMontNP$dCMontNP
090 $aS60275
100 10 $aSmith, Steven M.
245 14 $aThe use of electrical transmission line theory to predict the performance of spacecraft radiators /$cSteven M. Smith.
260 0 $aMonterey, Calif. :$bNaval Postgraduate School,$c1992.
300 $axii, 136 p. :$bill. ;$c28 cm.
500 $aThesis advisor: Kraus, Allan D.
500 $a"March 1992."
502 $aThesis (M.S. in Electrical Engineering (Space Systems Engineering))--Naval Postgraduate School, March 1992.
504 $aIncludes bibliographical references (p. 131-134).
506 $a"Approved for public release; distribution is unlimited"--Cover.
520 $aThe cascade algorithm that is used for extended surface analysis depends on a new parameterization called the thermal transmission matrix to represent a single fin. This thermal transmission matrix, which is intended to replace the more familiar fin efficiency as a design and analysis parameterization, is a linear transformation that maps conditions of heat flow and temperature at the fin tip to heat flow and temperature conditions at the fin base. The cascade algorithm was derived by resorting to an analogy between a fin and the electrical transmission line. The cascade algorithm permits a fin to be subdivided into many subfins each having a thermal transmission matrix and then the individual transmission matrices for each of the subfins can be used, via a simple matrix product to form an overall equivalent thermal transmission matrix for the entire fin. This thesis develops a thermal transmission matrix for the radiating rectangular, trapezoidal, and triangular fins both for the free space and non-free space environments. Test cases have been run and their solutions exactly match those contained in the literature. The thesis concludes with optimization studies for Thermal Transmission Matrix, Cascade Algorithm, Extended Surface, Cooling Fin, Radiative Fin, Longitudinal Fin, Rectangular Fin, Trapezoidal Fin, Triangular Fin, Optimum.
590 $aUS Navy (USN) author.
592 $ack/ 2/4/09.
650 0 $aSpace vehicles$xRadiators$xThermodynamics.
710 2 $aNaval Postgraduate School (U.S.)
998 $adk/kj CC:9996
949 $lthes$nT$aS60275$s1$tnorm$u00001$i32768000093256
999 $a S60275 $i32768000093256$hTHESIS$wT
926 $aNPS-LIB$bDIGIPROJ$cS60275$dTHESIS$eNEVER$f1