Thermal testing short course: why do you test?/Foundations of test
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thermal test↗
Engineering topics
Tsuyuki, G. T.
Publications and source records attributed to Tsuyuki, G. T..
Thermal testing short course: test implementation
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thermal test↗
Active heat rejection system on Mars Exploration Rover - design changes from Mars Pathfinder
The active Heat Rejection System designed for Mars Pathfinder was modified for the Mars Exploration Rover mission and will be used to remove excess heat from the Rover electronics during the cruise part of the mission. This paper addresses the lessons learned from the performance testing, and potential changes to improve the HRS performance.
spacecraft↗
Radioisotope heater unit
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radioisotope heater unit thermal control↗
Thermal control design of the Galaxy Evolution Explorer (GALEX)
This paper describes the thermal control design of GALEX, an ultraviolet telescope that investigates the UV properties of local galaxies, history of star formation, and global causes of star formation and evolution.
thermal control GALEX↗
Lightweight thermal insulation for Mars surface applications
The intent of this paper is to present a novel insulation design approach, to report the comparison testing against fiberglass batt material, and to summarize the design parameters such as effective thermal conductivity, mass, cost, and delivery time for the fiberglass batt material and this new insulation.
carbon↗
Aerospace America Year in Review -Thermophysics
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Pathfinder↗
Year in Review - Thermophysics
The status of three space missions is summarized: Galileo at Jupiter, Cassini in development for a Saturn mission, and Mars Pathfinder in development.
Galileo Cassini Mars Pathfinder↗
A simplified generic cryostat thermal model for predicting cryogen mass and lifetime
This study presents a simple generic cryostat thermal model developed for predicting cryogen mass and the lifetime of cryogenic space telescopes. The model is based on a lumped parameter representation of eight nodes and over 35 conductors. The major telescope Dewar components represented as nodes are the main cryogen tank, the three vapor-cooled shields, the outer shell, barrel baffle, and the barrel baffle heat exchanger. The input to the model consists of the vapor-cooled shield, support straps and instrument cable geometry, and the cryostat heat loads from the instrument and through the aperture. The predictions from the model were compared with those from the more detailed models of IRAS, COBE, and SIRTF. Correlation of the helium flow rates of the IRAS and COBE Dewars was 12 percent above the actual flight or ground test data and for SIRTF it was less than 2 percent of the prediction from the detailed model.
Birur, G. C.↗
Thermal design for the Comet Rendezvous Asteroid Flyby spacecraft
The mission overview of the Comet Rendezvous Asteroid Flyby (CRAF) spacecraft, which is planned to rendezvous with Comet Kopff in 1998, is presented, together with the CRAF mission trajectory. The preliminary thermal design of the CRAF spacecraft is discussed, with emphasis placed on the Low Precision Pointing Platform, Bus, Propulsion Module, and Comet Penetrator, the thermal design of which was impacted most by the comet environment. Model simulations showed the design of the bus and the propulsion module subsystems to be adequate. Configuration diagrams are included.
Tsuyuki, G. T.↗