NDLI: Wall mounted heat exchanger characterization. [cryogenic propellant tanks

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Wall mounted heat exchanger characterization. [cryogenic propellant tanks

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bullard, B. R.
Copyright Year	1975
Description	Analytical models are presented for describing the heat and mass transfer and the energy distribution in the contents of a cryogenic propellant tank, under varying gravity levels. These models are used to analytically evaluate the effectiveness of a wall heat exchanger as a means of controlling the pressure in the tank during flight and during fill operations. Pressure and temperature histories are presented for tanks varying in size from 4 to 22.5 feet in diameter and gravity levels from 0-1. Results from the subscale test program, utilizing both non-cryogenic and cryogenic fluid, designed to evaluate a tank wall heat exchanger are described and compared with the analytical models. Both the model and test results indicate that a passive tank wall heat exchanger can effectively control tank pressure. However, the weight of such a system is considerably higher than that of an active mixer system.
File Size	11999525
Page Count	197
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750008695
Archival Resource Key	ark:/13960/t1vf1m77n
Language	English
Publisher Date	1975-01-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Energy Distribution Cryogenics Mathematical Models Heat Exchangers Propellant Tanks Mass Transfer Walls Heat Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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