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Title: Multi-Mission Capable, High g Load mW RPS

Abstract

Over the past few years Hi-Z has been developing a wide range of mW generators and life testing thermoelectric modules for the Department of Energy (DOE) to fulfill requirements by NASA Ames and other agencies. The purpose of this report is to determine the capabilities of a wide range of mW generators for various missions. In the 1st quarterly report the power output of various mW generators was determined via thermal and mechanical modeling. The variable attributes of each generator modeled were: the number of RHUs (1-8), generator outer diameter (1.25-4 in.), and G-load (10, 500, or 2,000). The resultant power output was as high as 180 mW for the largest generator with the lowest Gload. Specifically, we looked at the design of a generator for high G loading that is insulated with Xenon gas and multifoil solid insulation. Because the design of this new generator varied considerably from the previous generator design, it was necessary to show in detail how it is to be assembled, calculate them as of the generator and determine the heat loss from the system. A new method of assembling the RHU was also included as part of the design. As a side issue wemore » redesigned the test stations to provide better control of the cold sink temperature. This will help in reducing the test data by eliminating the need to 'normalize' the data to a specific temperature. In addition these new stations can be used to simulate the low ambient temperatures associated with Mars and other planets.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Hi-Z Technology, Inc., 7606 Miramar Road, San Diego, CA 92126-4210
Sponsoring Org.:
USDOE - Office of Nuclear Energy, Science and Technology (NE)
OSTI Identifier:
908405
Report Number(s):
DOE-ID14755-1
Hi-Z 6100; TRN: US201115%%3
DOE Contract Number:
FG07-06ID14755
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; AMBIENT TEMPERATURE; DESIGN; NASA; PLANETS; SIMULATION; TESTING; XENON

Citation Formats

John C. Bass, Nathan Hiller, Velimir Jovanovic, and Norbert B. Elsner. Multi-Mission Capable, High g Load mW RPS. United States: N. p., 2007. Web. doi:10.2172/908405.
John C. Bass, Nathan Hiller, Velimir Jovanovic, & Norbert B. Elsner. Multi-Mission Capable, High g Load mW RPS. United States. doi:10.2172/908405.
John C. Bass, Nathan Hiller, Velimir Jovanovic, and Norbert B. Elsner. Wed . "Multi-Mission Capable, High g Load mW RPS". United States. doi:10.2172/908405. https://www.osti.gov/servlets/purl/908405.
@article{osti_908405,
title = {Multi-Mission Capable, High g Load mW RPS},
author = {John C. Bass and Nathan Hiller and Velimir Jovanovic and Norbert B. Elsner},
abstractNote = {Over the past few years Hi-Z has been developing a wide range of mW generators and life testing thermoelectric modules for the Department of Energy (DOE) to fulfill requirements by NASA Ames and other agencies. The purpose of this report is to determine the capabilities of a wide range of mW generators for various missions. In the 1st quarterly report the power output of various mW generators was determined via thermal and mechanical modeling. The variable attributes of each generator modeled were: the number of RHUs (1-8), generator outer diameter (1.25-4 in.), and G-load (10, 500, or 2,000). The resultant power output was as high as 180 mW for the largest generator with the lowest Gload. Specifically, we looked at the design of a generator for high G loading that is insulated with Xenon gas and multifoil solid insulation. Because the design of this new generator varied considerably from the previous generator design, it was necessary to show in detail how it is to be assembled, calculate them as of the generator and determine the heat loss from the system. A new method of assembling the RHU was also included as part of the design. As a side issue we redesigned the test stations to provide better control of the cold sink temperature. This will help in reducing the test data by eliminating the need to 'normalize' the data to a specific temperature. In addition these new stations can be used to simulate the low ambient temperatures associated with Mars and other planets.},
doi = {10.2172/908405},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 23 00:00:00 EDT 2007},
month = {Wed May 23 00:00:00 EDT 2007}
}

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