Preliminary reentry safety assessment of the General Purpose Heat Source module for the Cassini mission: Aerospace Nuclear Safety Program (open access)

Preliminary reentry safety assessment of the General Purpose Heat Source module for the Cassini mission: Aerospace Nuclear Safety Program

As asked by the U. S. Department of Energy/Office of Special Applications, and in support of the Environmental Impact Statement for the Cassini mission, The Johns Hopkins University/Applied Physics Laboratory (JHU/APL) has conducted preliminary one-dimensional ablation and thermal analyses of the General Purpose Heat Source (GPHS). The predicted earth entry conditions provided by the Jet Propulsion Laboratory (JPL) for a Cassini Venus-Venus-Earth-Jupiter Gravity Assist (VVEJGA) trajectory were used as initial conditions. The results of this study which constitute the initial reentry analysis assessment leading to the Cassini Updated Safety, Analysis Report (USAR) are discussed in this document.
Date: April 1, 1993
Creator: Conn, D. W. & Brenza, P. T.
System: The UNT Digital Library
Low-cost flywheel demonstration program. Final report (open access)

Low-cost flywheel demonstration program. Final report

The Applied Physics Laboratory/Department of Energy Low Cost Flywheel Demonstration Program was initiated on 1 October 1977 and was successfully concluded on 31 December 19'9. The total cost of this program was $355,190. All primary objectives were successfully achieved as follows: demonstration of a full-size, 1)kWh flywheel having an estimated cost in large-volume production of approximately $50/kWh; developmeNt of a ball-bearing system having losses comparable to the losses in a totally magnetic suspension system; successful and repeated demonstration of the low-cost flywheel in a complete flywheel energy-storage system based on the use of ordinary house voltage and frequency; and application of the experience gained in the hardware program to project the system design into a complete, full-scale, 30-kWh home-type flywheel energy-storage system.
Date: April 1, 1980
Creator: unknown
System: The UNT Digital Library
Low-cost flywheel demonstration program. Final report, 1 October 1977-31 December 1979 (open access)

Low-cost flywheel demonstration program. Final report, 1 October 1977-31 December 1979

The Applied Physics Laboratory/Department of Energy Low Cost Flywheel Demonstration Program was initiated on 1 October 1977 and was successfully concluded on 31 December 1979. The total cost of this program was $355,190. All primary objectives were successfully achieved as follows: demonstration of a full-size, 1-kWh flywheel having an estimated cost in large-volume production of approximately $50/kWh; development of a ball-bearing system having losses comparable to the losses in a totally magnetic suspension system; successful and repeated demonstration of the low-cost flywheel in a complete flywheel energy-storage system based on the use of ordinary house voltage and frequency; and application of the experience gained in the hardware program to project the system design into a complete, full-scale, 30-kWh home-type flywheel energy-storage system.
Date: April 1, 1980
Creator: Rabenhorst, D. W.; Small, T. R. & Wilkinson, W. O.
System: The UNT Digital Library
Energy programs at The Johns Hopkins University Applied Physics Laboratory. Quarterly report, January--March 1979 (open access)

Energy programs at The Johns Hopkins University Applied Physics Laboratory. Quarterly report, January--March 1979

Work on developing energy resources, utilization concepts, and storage methods is summarized and divided into three sections. The first, Geothermal Energy Development Planning, contains reports on the progress of those geothermal-related tasks where effort was concentrated during the quarter. The tasks include an ongoing Atlantic Coastal Plain Geothermal Energy Market Survey, the Delmarva Geothermal Development Prospectus, Evaluation of Federal Strategies for Hydrothermal Developments, and comments on limited tasks performed in support of the major tasks. The second section, Operational Research, Hydroelectric Power Development, includes reports on a method for quantifying institutional constraints and on institutional and regulatory restraints in New Jersey. The third section, Energy Conservation and Storage Techniques, contains a report on flywheel development.
Date: April 1, 1979
Creator: unknown
System: The UNT Digital Library
Problems of hydroelectric development at existing dams: an analysis of institutional, economic, and environmental restraints in Pennsylvania, New Jersey, and Maryland (open access)

Problems of hydroelectric development at existing dams: an analysis of institutional, economic, and environmental restraints in Pennsylvania, New Jersey, and Maryland

The methodology that has been developed to analyze the impact of possible government actions on the development of small-scale hydroelectric power in the United States is described. The application of the methodology to a specific region of the United States is also described. Within the Pennsylvania-New Jersey-Maryland (PJM) region, the methodology has been used to evaluate the significance of some of the existing institutional and economic constraints on hydroelectric development at existing dams. The basic process for the analysis and evaluation is estimation of the hydroelectric energy that can be developed for a given price of electricity. Considering the present constraints and a geographical region of interest, one should be able to quantify the potential hydroelectric energy supply versus price. Estimates of how the supply varies with possible changes in governmental policies, regulations, and actions should assist the government in making decisions concerning these governmental functions relative to hydroelectric development. The methodology for estimating the hydroelectric supply at existing dams is included.
Date: April 1, 1979
Creator: Taylor, R. J. & Green, L. L.
System: The UNT Digital Library
Pioneer F/SNAP 19 heat source thermal analysis (open access)

Pioneer F/SNAP 19 heat source thermal analysis

None
Date: April 1, 1972
Creator: Conn, D. W. & Frazer, R. K.
System: The UNT Digital Library