Application of near-equilibrium criteria during adiabatic flow to representative propellant systems
✍ Scribed by S.S. Penner
- Book ID
- 103076172
- Publisher
- Elsevier Science
- Year
- 1950
- Tongue
- English
- Weight
- 427 KB
- Volume
- 249
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
Near-equilibrium criteria for chemical reactions during adiabatic flow through a nozzle are summarized. These criteria are then applied to two representative chemical systems. It is shown that the adiabatic expansion of the combustion produqts produced in the hydrogen-fluorlne motor using the reactants in stoichiometric proportions should occur under conditions very closely approximating thermodynamic equilibrium. One of the near-equilibrium criteria is modified and used to demonstrate the departure from thermodynamic equilibrium for the decomposition of nitric oxide. This study of the equilibrium involving nitric oxide, nitrogen, and oxygen suggests the occurrence of practically frozen flow below a certain temperature, a result which is in agreement with the conclusions reached by a detailed numerical calculation.