Empirical equations were derived to establish the appropriate heat transfer coefficients as functions of the temperature drops and heat transfer rates for a wide range of convective and boiling conditions at different locations in a liquid hydrogen turbopump

Bissel, W. R.

Wagner, W. R.

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November 1968	 Brief 68-10517 
NASA TECH BRIEF 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
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from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Heat Transfer Coefficients for Liquid Hydrogen Turbopumps 
There are numerous complex modes of heat transfer 	 Patent status: 
that occur during transient startup operation of liquid 
hydrogen turbopumps. Empirical equations have been 	 No patent action is contemplated by NASA. 
derived to establish the appropriate heat transfer	 Source: W. R. Wagner and W. R. Bissel 
coefficients as functions of the temperature drops and	 of North American Rockwell Corporation 
heat transfer rates for a wide range of convective and	 under contract to 
boiling conditions at different locations in a liquid 	 Marshall Space Flight Center 
hydrogen turbopump. 	 (MFS-18345)
Note: 
Documentation for the innovation is available 
from:
Clearinghouse for Federal Scientific 
and Technical Information 
Springfield, Virginia 22151 
Price $3.00 
Reference: B68-10517
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Heat transfer coefficients for liquid hydrogen turbopumps

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