NDLI: Thermal management of GEO satellite communication payload

Content Provider	IEEE Xplore Digital Library
Author	Murthy, H.S.V. Sharma, A.K. Badarinarayana, K. Lakshminarasimhan, P.
Copyright Year	2011
Description	Author affiliation: ISRO Satellite Centre, Bangalore, India (Murthy, H.S.V.; Sharma, A.K.; Badarinarayana, K.; Lakshminarasimhan, P.)
Abstract	Thermal management is absolutely critical in geo stationary satellites particularly in maintaining required thermal conditions in communication payload such as communication transponders components like High power TWTAs. If the required thermal conditions are not maintained, then it can adversely affect the performance of TWTAs and thereby satellite and hence communication. The requirement of Payload with higher capacity and power is growing exponentially hence thermal management is very critical and of utmost importance for space applications. The design, development and implementation of passive and active thermal management are carried in ISRO Geo missions. The paper deals with practical implementation of Passive and active thermal management system for GEO satellites. The Passive thermal control is implemented using Thermal grease, thermal paint, multilayer insulation, thermal filler materials, Heat pipes etc., The active thermal control is implemented using heaters and thermistor. Apart from these automatic temperature controller is implemented using embedded system with RTX 2010 microcontroller which takes care of whole spacecraft thermal management. The paper is organized as follows: The section I give the introduction. The section II of this paper describes the thermal design constraints. Third section deals with thermal management of the payload. The fourth section describes the automatic temperature controller. Brief description of the paper is given below.
Starting Page	469
Ending Page	470
File Size	49888
Page Count	2
File Format	PDF
ISBN	9781424486625
e-ISBN	9781424486618
DOI	10.1109/IVEC.2011.5747079
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-02-21
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermal management Temperature sensors Heating Space vehicles Satellites Land surface temperature Auto temperature control GEO TWTA Passive control heat pipes Active control
Content Type	Text
Resource Type	Article

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