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Evolution of Energy for Jet and Rocket Propulsion

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 April 1946


Specific Heat of Gases THE chemical reaction having been accomplished and the energy of fuel released, we can follow its further transformation. It can be assumed that in the first stage this energy is absorbed and stored in the surrounding gaseous medium composed mainly of combustion products. The mechanism of the absorption and preservation of energy by gases is given in their specific heat theory, and is based mainly on the assumption of the equipartition of energy among all degrees of freedom of gas molecules. Heat, being the equivalent of kinetic energy of these molecules, is stored in four different ways by the molecules, and assumes four different forms of energy, three of which are quantized without any doubt, i.e. the exchange of energy does not take place as a continuous flow, but by small packets of a definite size (quanta). The value of a quantum is equal to hp, where h is the Planck's constant and p is the frequency of radiation associated with the energy change.


Bielkowicz, P. (1946), "Evolution of Energy for Jet and Rocket Propulsion", Aircraft Engineering and Aerospace Technology, Vol. 18 No. 4, pp. 129-132.




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