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Article #137Re: nasa-celebrates-successful-mars-landing
From: Jeff Liebermann
Date: Tue, 07 Aug 2012 19:52
Date: Tue, 07 Aug 2012 19:52
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3167 bytes
On Tue, 07 Aug 2012 12:19:47 -0700, Jon Kirwan <jonk@infinitefactors.org> wrote: >Which reminds me of another thing. How do they convect the >internally generated heat away. I recall hearing about >multiple power systems, operating around 32V at near 2A. More >than one. This power must be convected/conducted away -- no >way they want to radiate it. I wonder if they push it >(costing more heat) towards a vane or arm and drag it around >on the surface to get rid of it? The atmosphere won't help >much. They seem to worry more about distributing the heat, rather than radiating it: <http://mars.jpl.nasa.gov/msl/multimedia/interactives/learncuriosity/> (Click on the arrows until it shows "body"). The power system, which looks like its "tail," flows excess heat into the body to keep the computer "brains," avionics, instrument electronics, and interior instruments (SAM and CheMin) warm in the extremely cold Martian temperatures. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
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From: Jeff Liebermann <jeffl@cruzio.com>
Newsgroups: sci.electronics.design,aus.electronics,comp.arch.embedded
Subject: Re: nasa-celebrates-successful-mars-landing
Date: Tue, 07 Aug 2012 12:52:45 -0700
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