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Heat Transfer Analysis & Passive Thermal Control Techniques in Spacecraft Transportation Systems
Date : 03/09/2020
Author Information
Uploaded by : Karan
Uploaded on : 03/09/2020
Subject : Engineering
Spacecraft
Transportation Systems are used for transportation of spacecraft from manufacturing
unit to the launch port base. These
containers are double walled containers. External surface of the container was
provided with corrugation sheet of certain thickness internal surface was
provided with certain value of thick Stainless Steel cladding. Polyurethane Foam
( PUF) was filled between these two
surfaces. PUF acts as a passive thermal control media for control of
temperature during the transportation. The
main aim of project was to determine the outside surface temperature, forced
convective heat transfer coefficient and other heat transfer parameters. The
project also aimed at reduction of heat at source and transfer of heat from
internal Stainless Steel clad of container to the internal volume of container
by introducing a low emissive and high reflective thermal foil. Advantages
disadvantages of using high low value emissive reflection
thermal foil were studied in detail and arrived at selection of suitable foil.
Time taken for unit degree rise in temperature was also determined for various
heat loads at ambient conditions. It was found that usage of low emissive high
reflective tapes had significantly reduced heat load at source, thus reducing
the internal air temperature of container. This project assisted in reducing
the loads on Air Conditioning unit during active thermal control of
transportation container used by a space research organization during
spacecraft transportation.
This resource was uploaded by: Karan