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Record 10 of 2738
Radiation enhanced dissociation of hydrogen in nuclear rockets
Author and Affiliation:
Watanabe, Yoichi(Florida, University, Gainesville, United States)
Abstract: The effect of radiation-induced dissociation of hydrogen gas in nuclear rockets is studied. The dissociation degree is obtained by solving rate equations, which include the fast-ion induced dissociation and ionization of atomic and molecular hydrogens. Analytical formulas are used to estimate a change in the viscosity and the specific impulse. It was found that the fast-ion induced dissociation plays an important role in enhancing the specific impulse for nuclear rocket concepts using hydrogen gas at low pressures (less than 0.1 MPa) and low temperatures (less than 3000 K). It is also shown that the specific impulse is enhanced by mixing helium-3, lithium-6, boron-10, or uranium-235 with hydrogen.
Publication Date: Jul 01, 1992
Document ID:
19920066505
(Acquired Nov 22, 1995)
Accession Number: 92A49129
Subject Category: SPACECRAFT PROPULSION AND POWER
Report/Patent Number: AIAA PAPER 92-3817
Document Type: Preprint
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Lewis Research Center; Cleveland, OH, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CHEMICAL REACTIONS; GAS DISSOCIATION; HYDROGEN-BASED ENERGY; NUCLEAR ROCKET ENGINES; KINETIC ENERGY; VISCOSITY
Imprint And Other Notes: AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit, 28th, Nashville, TN, July 6-8, 1992. 8 p. Research supported by SDIO and NASA.
Availability Source: Other Sources
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