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Lightweight transformer demonstration. Quarterly status report, 27 March 1989--25 June 1989

Description: Information is presented on progress made during the reporting period: 3/27/89--6/25/89. The project goal is to support highly focused, innovative, fundamental/applied research approaches that will complement the Feasibility Assessment Program for Space Based, Multimegawatt, MHD Power Systems.(JDB)
Date: December 31, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mars Rover RTG Study

Description: This report summarizes the results of a Radioisotope Thermoelectric Generator (RTG) design study conducted by Fairchild Space Company at the direction of the U.S. Department of Energy's Office of Special Applications, in support of the Mars Rover and Sample Return mission under investigation at NASA's Jet Propulsion Laboratory. Presented at the 40th Congress of the IAF, Oct. 7-13, 1989 in Torremolinos, Malaga-Spain. The paper describes the design and analysis of Radioisotope Thermoelectric Gene… more
Date: November 27, 1989
Creator: Schock, Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mars Rover RTG Study

Description: Presented at the 40th Congress of the IAF, Oct. 7-13, 1989 in Torremolinos, Malaga-Spain. The paper describes the design and analysis of Radioisotope Thermoelectric Generators (RTGs) for powering the Mars Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The RTG design study was conducted by Fairchild Space for the U.S. DOE in support of the JPL MRSR Project. The paper briefly describes a reference mission scenario, an illustrative Rover des… more
Date: October 1, 1989
Creator: Schock, Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design and Structural Analysis of Mars Rover RTG

Description: The paper describes the design and the structural and mass analysis of a Radioisotope Thermoelectric Generators (RTGs) for powering the MARS Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The RTG design study was conducted by Fairchild Space Company for the U.S. Department of Energy, in support of the Jet Propulsion Laboratory's MRSR project.; The paper briefly describes a reference mission scenario, an illustrative Rover design and activ… more
Date: September 29, 1989
Creator: Schock, Alfred; Hamrick, T.; Sankarankandath, V. & Shirbacheh, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal and Electrical Analysis of MARS Rover RTG, and Performance Comparison of Alternative Design Options.

Description: The paper describes the thermal, thermoelectric and electrical analysis of Radioisotope Thermoelectric Generators (RTGs) for powering the MARS Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The work described was part of an RTG design study conducted by Fairchild Space Company for the U.S. Department of Energy, in support of the Jet Propulsion Laboratory's MRSR Project.; A companion paper presented at this conference described a refe… more
Date: September 29, 1989
Creator: Schock, Alfred; Or, Chuen T & Skrabek, Emanuel A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Formulation and experimental evaluation of closed-form control laws for the rapid maneuvering of reactor neutronic power

Description: This report describes both the theoretical development and the experimental evaluation of a novel, robust methodology for the time-optimal adjustment of a reactor's neutronic power under conditions of closed-loop digital control. Central to the approach are the MIT-SNL Period-Generated Minimum Time Control Laws' which determine the rate at which reactivity should be changed in order to cause a reactor's neutronic power to conform to a specified trajectory. Using these laws, reactor power can be… more
Date: September 1, 1989
Creator: Bernard, John A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Introductory testimony

Description: This report covers the uses of nuclear power in space. Various systems are discussed and an outline of a slide presentation is given. The testing and safety of these programs is also briefly mentioned. (JEF)
Date: September 1, 1989
Creator: Nolan, J. (Westinghouse Hanford Co., Richland, WA (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A New Method for Power Generation and Distribution in Outer Space

Description: The power system is a major component of a space system's size, mass, technical complexity, and hence, cost. To date, space systems include the energy source as an integral part of the mission satellite. Potentially significant benefit could be realized by separating the energy source from the end-use system and transmitting the power via an energy beam (power beaming) (Coomes et al., 1989). This concept parallels the terrestrial central generating station and transmission grid. In this summary… more
Date: September 1, 1989
Creator: Bamberger, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

TFE Verification Program: Semiannual report for the period ending April 30, 1989

Description: The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 yea… more
Date: September 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mars Rover RTG Study

Description: This report summarizes the results of a Radioisotope Thermoelectric Generator (RTG) design study conducted by Fairchild Space Company at the direction of the U.S. Department of Energy's Office of SpecialApplications, in suppport of the Mars Rover and Sample Return mission under investigation at NASA's Jet Propulsion Laboratory. The report is a rearranged, updated, and significantly expanded amalgam of three interrelated papers presented at the 24th Intersocity Energy Conversion Engineering Conf… more
Date: August 25, 1989
Creator: Schock, Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application for Approval for Construction of the Fueled Clad Fabrication System, the Radioisotope Power Systems Facility, and the Fuel Assembly Area

Description: The following ''Application for Approval of Construction'' is being submitted by the US Department of Energy-Richland Operations Office, pursuant to 40 CFR 61.07, for three new sources of airborne radionuclide emissions at the Hanford Site in Washington State. The three new sources, the Fueled Clad Fabrication System (FCFS), the Radioisotope Power Systems Facility (RPSF), and the Fuel Assembly Area (FAA), will be located in one facility, the Fuels and Materials Examination Facility (FMEF) of th… more
Date: August 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas production and behavior in the coolant of the SP-100 Space Nuclear Power System

Description: The radiologic generation and subsequent behavior of helium gas in the lithium coolant of SP-100 class space nuclear power reactors was investigated analytically in a two part study. Part One of the study consisted of a calculation of coolant radiologic helium gas production rates in a SP-100 class reactor using the discrete ordinates code TWODANT. Cross sections were developed from ENDF/B-V data via the MATXS6s master cross section library. Cross sections were self shielded assuming one homoge… more
Date: August 1, 1989
Creator: McGhee, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General-Purpose Heat Source development: Extended series test program large fragment tests

Description: General-Purpose Heat Source radioisotope thermoelectric generators (GPHS-RTGs) will provide electric power for the NASA Galileo and European Space Agency Ulysses missions. Each GPHS-RTG comprises two major components: GPHS modules, which provide thermal energy, and a thermoelectric converter, which converts the thermal energy into electric power. Each of the 18 GPHS modules in a GPHS-RTG contains four /sup 238/PuO/sub 2/-fueled capsules. LANL conducted a series of safety verification tests on t… more
Date: August 1, 1989
Creator: Cull, T.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mathematical modeling and analysis of heat pipe start-up from the frozen state

Description: The start-up process of a frozen heat pipe is described and a complete mathematical model for the start-up of the frozen heat pipe is developed based on the existing experimental data, which is simplified and solved numerically. The two-dimensional transient model for the wall and wick is coupled with the one-dimensional transient model for the vapor flow when vaporization and condensation occur at the interface. A parametric study is performed to examine the effect of the boundary specificatio… more
Date: August 1, 1989
Creator: Jang, J. H.; Faghri, A.; Chang, W. S. & Mahefkey, E. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pressure Fed Nuclear Thermal Rockets for space missions

Description: The National Space Policy includes a long range goal of expanding human presence and activity beyond Earth orbit into the solar system. This has renewed interest in the potential application of Nuclear Thermal Rockets (NTR) to space flight, particularly for human expeditions to the Moon and Mars. Recent NASA studies consider applications of the previously developed NERVA (Nuclear Engine for Rocket Vehicle Application) technology and the more advanced gas core reactors and show their potential a… more
Date: August 1, 1989
Creator: Leyse, C. F.; Madsen, W. W.; Ramsthaler, J. H. & Schnitzler, B. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Prevention of Significant Deterioration Permit Application for the Fueled Clad Fabrication System, the Radioisotope Power Systems Facility, and the Fuel Assembly Area

Description: This New Source Review'' has been submitted by the US Department of Energy-Richland Operations Office (PO Box 550, Richland, Washington 99352), pursuant to WAC 173-403-050 and in compliance with the Department of Ecology Guide to Processing A Prevention Of Significant Deterioration (PSD) Permit'' for three new sources of radionuclide emissions at the Hanford Site in Washington State. The three new sources, the Fueled Clad Fabrication System (FCFS), the Radioisotope Power Systems Facility (RPSF)… more
Date: August 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Review of Gas-Cooled Reactor Concepts for SDI (Strategic Defense Initiative) Applications

Description: We have completed a review of multimegawatt gas-cooled reactor concepts proposed for SDI applications. Our study concluded that the principal reason for considering gas-cooled reactors for burst-mode operation was the potential for significant system mass savings over closed-cycle systems if open-cycle gas-cooled operation (effluent exhausted to space) is acceptable. The principal reason for considering gas-cooled reactors for steady-state operation is that they may represent a lower technology… more
Date: August 1, 1989
Creator: Marshall, A.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Supplemental Information for a Notice of Construction for the Fueled Clad Fabrication System, the Radioisotope Power Systems Facility, and the Fuel Assembly Area

Description: This ''Notice of Construction'' has been submitted by the US Department of Energy-Richland Operations Office (P.O. Box 550, Richland, Washington 99352), pursuant to WAC 402-80-070, for three new sources of radionuclide emissions at the Hanford Site in Washington State (Figure 1). The three new sources, the Fueled Clad Fabrication System (FCFS) the Radioisotope Power Systems Facility (RPSF) and the Fuel Assembly Area (FAA) will be located in one facility, the Fuels and materials Examination Faci… more
Date: August 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermionic converter emitter support arrangement

Description: This document discusses a support provided for use in a thermionic converter to support an end of an emitter to keep it out of contact with a surrounding collector while allowing the emitter end to move axially as its temperature changes. The emitter end is supported by a spring structure that includes a pair of Belleville springs, and the spring structure is supported by a support structure fixed to the housing that includes the collector. The support structure is in the form of a sandwich wit… more
Date: July 6, 1989
Creator: Allen, D.T.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Analysis of the transient compressible vapor flow in heat pipe

Description: The transient compressible one-dimensional vapor flow dynamics in a heat pipe is modeled. The numerical results are obtained by using the implicit non-iterative Beam-Warming finite difference method. The model is tested for simulated heat pipe vapor flow and actual vapor flow in cylindrical heat pipes. A good comparison of the present transient results for the simulated heat pipe vapor flow with the previous results of a two-dimensional numerical model is achieved and the steady state results a… more
Date: July 1, 1989
Creator: Jang, J. H.; Faghri, A. & Chang, W. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pulsed laser propulsion for low cost, high volume launch to orbit

Description: Pulsed laser propulsion offers the prospect of delivering high thrust at high specific impulse (500-1000 seconds) from a very simple thruster, using the energy of a remote ground-based laser to heat an inert propellant. Current analyses indicate that payloads of approximately 1 kg per megawatt of average laser power can be launched at a rate of one payload every 15 minutes and a marginal cost of $20 to $200 per kg. A 20 MW entry-level launch system could be built using current technology at a c… more
Date: June 2, 1989
Creator: Kare, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

General-purpose heat source development: Extended series test program SRB fragment/fuselage tests

Description: General-Purpose Heat Source radioisotope thermoelectric generators (GPHS-RTGs) will provide electrical power for the NASA Galileo and European Space Agency (ESA) Ulysses missions. Each GPHS-RTG comprises two major components: GPHS modules, which provide thermal energy, and a thermoelectric converter, which converts the thermal energy into electrical power. Each of the 18 GPHS modules in a GPHS-RTG contains four /sup 238/PuO/sub 2/-fueled capsules. LANL conducted a series of safety verification … more
Date: June 1, 1989
Creator: Cull, T.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Definitive design status of the SP-100 Ground Engineering System Test Site

Description: The SP-100 reactor will be ground tested at the SP-100 Ground Engineering System (GES) Test Site on the US Department of Energy (DOE) Hanford Site near Richland, Washington. Project direction and the flight system design evolution have resulted in a smaller reactor size and the consequential revision to Test Site features to accommodate the design changes and reduce Test Site costs. The significant design events since the completion of the Conceptual Design are discussed in this paper.
Date: May 1, 1989
Creator: Renkey, E. J. Jr.; Bazinet, G. D.; Bitten, E. J.; Brackenbury, P. J.; Carlson, W. F.; Irwin, J. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

GPHS (General Purpose Heat Source) uranium oxide encapsulations supporting satellite safety tests

Description: General Purpose Heat Source (GPHS) simulant-fueled capsules were assembled, welded, nondestructively examined, and shipped to Los Alamos National Laboratory (LANL) for satellite safety tests. Simulant-fueled iridium capsules contain depleted uranium oxide pellets that serve as a stand-in for plutonium-238 oxide pellets. Information on forty seven capsules prepared during 1987 and 1988 is recorded in this memorandum along with a description of the processes used for encapsulation and evaluation.… more
Date: April 24, 1989
Creator: Kanne, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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