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RUBIDIUM AND CESIUM EVALUATION PROGRAM. SPACE POWER SYSTEMS TECHNOLOGY STUDIES. Quarterly Technical Report for Period February 1 through April 30, 1961. Report No. 1

Description: A summary is given of the development of equipment to obtain data for the corrosion and solubility properties of rubidium, and for the corrosion and thermodynamic properties of cesium. (B.O.G.)
Date: October 31, 1961
Creator: Young, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 14. MERCURY MATERIALS EVALUATION AND SELECTION

Description: SNAP II is the designation for a 3 kw nuclear auxiliary power unit to be used in a satellite vehicle. The SNAP II System consists of a reactor heat source, a boiler, a Hg Rankine engine, an alternator, and a condenser. The corrosion and subsequent mass transfer resulting from the use of Hg as the thermodynamic wo:king fluid are important considerations in the selection of materials for the SNAP II System. Consequently, corrosion and mass transfer behavior were under study for the past three yea… more
Date: April 10, 1961
Creator: Nejedlik, James F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 11, ORBITAL FORCE FIELD BOILING AND CONDENSING EXPERIMENT

Description: The characteristics of Rankine space power plants in the zero gravity aspect of the environment of space were lnvestigated. The expected effects of Rankine space power plants are described. Discussions of experimental techniques for studying these phenomena show that this information can be obtained rapidly and economically. Recommendations for a program to supplement SNAP II and slmllar Ranklne space power development efforts in this vital area are made, and consist of: the development and tes… more
Date: January 15, 1960
Creator: Grevstad, P.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 9, ALTERNATOR ANALYSIS, DESIGN AND DEVELOPMENT

Description: The 3 kw nuclear auxiliary power unit deslgnated SNAP II is intended for use in a satellite vehicle. The system consists of a reactor heat source, a mercury Rankine engine, and a permanent magnet alternator. The design details, test results, and development of the SNAP lI alternator are presented. (auth)
Date: October 31, 1962
Creator: Bucklin, R.L.; Galysh, J.W. & Morgan, H.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 10, SODIUM PUMP DESIGN AND TESTING

Description: BS>SNAP II is the designation for a 3 kw nuclear auxiliary power unii for utilization in a satellite vehicle. The SNAP Il system consists of a reactor source which utllizes a mercury Rankine engine for power conversion. Design details and test data for the primary fluid reactor coolant pump used to transfer heat from the reactor to the mercury boiler are described. (auth)
Date: August 1, 1960
Creator: Snoke, B.A. & Tiltins, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid hydrogen flow problems in Kiwi reactors

Description: The Kiwi series of reactors were the first ones tested in the US Rover Program in the development of nuclear rocket engines for space propulsion. The early experiments with liquid hydrogen showed that parallel flow systems were prone to uneven flow distributions and violent fluctuations in pressure and flow that were capable of destroying a reactor core. Kiwi flow distribution problems were solved by using multiple feed lines into the nozzle cooling system and carefully balancing impedance amon… more
Date: September 1, 1992
Creator: Thurston, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Thermohydraulic modeling of nuclear thermal rockets: The KLAXON code

Description: The hydrogen flow from the storage tanks, through the reactor core, and out the nozzle of a Nuclear Thermal Rocket is an integral design consideration. To provide an analysis and design tool for this phenomenon, the KLAXON code is being developed. A shock-capturing numerical methodology is used to model the gas flow (the Harten, Lax, and van Leer method, as implemented by Einfeldt). Preliminary results of modeling the flow through the reactor core and nozzle are given in this paper.
Date: July 1, 1992
Creator: Hall, M. L.; Rider, W. J. & Cappiello, M. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Conceptual Design of a 2000 kW Nuclear Heat Source Suitable for Space Electric Power.

Description: A conceptual design of a 2000 kW/sub/t Rankine system for nuclear-electric space power is described. The system includes a unique reactor-boiler unit operating at 1500°K that utilizes heatpipes in lieu of a conventionally pump primary loop. An efficient heatpipe radiator rejects waste hea at 1035°K. Overall system efficiency is 18.8% yielding a net electrical output of 375 kW. The system specific mass is 10 g/W including a generous shadow shield for unmanned payloads.
Date: January 1, 1968
Creator: Pitts, J. H. & Walter, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Materials Technology Support for Radioisotope Power Systems Final Report

Description: Over the period of this sponsored research, UDRI performed a number of materials related tasks that helped to facilitate increased understanding of the properties and applications of a number of candidate program related materials including; effects of neutron irradiation on tantalum alloys using a 500kW reactor, thermodynamic based modeling of the chemical species in weld pools, and the application of candidate coatings for increased oxidation resistance of FWPF (Fine Weave Pierced Fabric) mod… more
Date: October 7, 2008
Creator: Kramer, Daniel P. & Barklay, Chadwick D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis of (U,Zr)C solid solutions under exothermic conditions. Revision

Description: The reactions of forming (U,Zr)C solid solutions from their elemental components or similarly less stable reactants such as UC{sub 2} are strongly exothermic due to the high stability of these solid solutions. A simple approach of utilizing this heat of formation energy to assist the solid solution reaction process is intimately mix the less stable reactant powders and pressed them into compact; the compact is then heated to the ignition temperature of the reaction. The feasibility of this reac… more
Date: October 1, 1993
Creator: Wang, Lily L.; Moore, H. G. & Gladson, J. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design Study (of) Electrical Component Technology for 0.25 to 10.0 Megawatt Space Power Systems: Parametric Study of Inductor Alternators.

Description: Parametic studies to determine minimum system weight as a function of electrical rating, frequency, speed, voltage, and coolant temperature are presented on inductor alternators for rating of 0.25 to 10.0 megawatts for space nuclear electric power plants utilizing the Rankine conversion cycle.
Date: January 1, 1968
Creator: Kouba, C.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Control Characteristics of Rankine Cycle Systems Which Simulate the Mpre Fluid System.

Description: In conjunction with the Medium power Reactor Experiment Program at ORNL, studies were conducted on two single-loop Rankine cycle systems. These systems were controlled using the same design concept which has been proposed for control of the MPRE fluid system. Experiments were run with water and potassium test facilities which were reduced scale electrically heated mockups of the proposed reactor and power recovery system. Results from these studies demonstrate that with proper design, the distr… more
Date: October 31, 1969
Creator: Yarosh, M.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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