Theoretical Performance of Various Chemical Fuels for Auxiliary Power 670205

Factors to be considered in selection of fuel for the auxiliary power system are discussed along with the performance of various fuels or propellants. The non-air breathing systems covered in this paper are considered an integrated assembly of four basic subsystems - energy source, energy converter, power conditioning, and heat sink.
Advantages and disadvantages of both solid and liquid propellants are reviewed. Because weight and size considerations are of prime importance in auxiliary power units, a theoretical performance in the way of minimum specific propellant consumption is presented.
The paper concludes with presentation of a possible problem an APS must undergo, and its solution.


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