Hydrocarbon Fuel Cooling Technologies for Advanced Propulsion

Author:

Sobel D. R.1,Spadaccini L. J.1

Affiliation:

1. United Technologies Research Center, East Hartford, CT 06108

Abstract

Storable hydrocarbon fuels that undergo endothermic reaction provide an attractive heat sink for future high-speed aircraft. An investigation was conducted to explore the endothermic potential of practical fuels, with inexpensive and readily available catalysts, under operating conditions simulative of high-speed flight applications. High heat sink capacities and desirable reaction products have been demonstrated for n-heptane and Norpar 12 fuels using zeolite catalysts in coated-tube reactor configurations. The effects of fuel composition and operating condition on extent of fuel conversion, product composition, and the corresponding endotherm have been examined. The results obtained in this study provide a basis for catalytic-reactor/heat-exchanger design and analysis.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference7 articles.

1. Ely, J. F., and Huber, M. L., 1990, “NIST Standard Reference Database 4—NIST Thermophysical Properties of Hydrocarbon Mixtures.”

2. Lander H. , and NixonA. C., 1971, “Endothermic Fuels for Hypersonic Vehicles,” Journal of Aircraft, Vol. 8, No. 4, pp. 200–207.

3. Lipinski, J., Armstrong, J., Johnson, R., White, C., and Kretzinger, K., 1989, “Design, Fabrication, and Testing of a Boilerplate Endothermic Methylcyclohexane Fuel Heat Exchanger Reactor System,” AFWRDC-TR-89-2045.

4. Nixon, A. C., Ackerman, G. H., Hawthorne, R. D., Ritchie, A. W., Henderson, H. T., and Bjorklund, I. S., 1964, “Vaporizing and Endothermic Fuels for Advanced Engine Application,” AFAPL TDR 64-100, Parts I, II, and III.

5. Nixon, A. C., Ackerman, G. H., Faith, L. E., Hawthorne, R. D., Henderson, H. T., Ritchie, A. W., Ryland, L. B., and Shryne, T. M., 1967, “Vaporizing and Endothermic Fuels for Advanced Engine Application,” AFAPL TDR 67-114, Parts I, II, and III.

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