Accession Number : AD0838392

Title :   THERMAL ANALYSIS OF GAS PRESSURIZED EXPULSION SYSTEMS. PART I. HEAT TRANSFER IN CLOSED CONTAINERS WITH GAS INJECTION,

Descriptive Note : Technical publication,

Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA

Personal Author(s) : Ulrich, R. D. ; Wirtz, D. P. ; Nunn, R. H.

Report Date : JUL 1968

Pagination or Media Count : 14

Abstract : This paper presents a technique for measuring instantaneous average heat transfer coefficients between a container and its gaseous contents using pressure and pressure time history; measurement of transient temperatures is not required. This technique was used to measure heat transfer coefficients between an injected gas and the container walls. The results showed that immediately after injection, the average heat transfer coefficient, h, is much larger than the free convection prediction equation yields. This large difference quickly decays to the h predicted by standard free convection techniques. (Author)

Descriptors :   *HEAT TRANSFER), (*LIQUID PROPELLANT ROCKET ENGINES, EXPULSION BLADDERS), (*EXPULSION BLADDERS, THERMAL ANALYSIS, GASES, WALLS, PRESSURIZATION, CONTAINERS, CONVECTION(HEAT TRANSFER), MATHEMATICAL PREDICTION, TEST METHODS, CYLINDRICAL BODIES, CORRELATION TECHNIQUES.

Subject Categories : Thermodynamics
      Liquid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE