My Assistant
Sundial sitting on solar panels, A question about power requirements |
Sep 2 2006, 03:03 PM
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Member ![]() ![]() ![]() Group: Members Posts: 147 Joined: 14-April 06 From: Berlin Member No.: 744 |
I am currently digging in the Planetary Radio archives and heared Bill Nye saying that the Mars sundial sitting on the solar panels takes about 1 to 2 percent of power by covering them. The sundial itself is of course a great outreach idea and probably does not affect the mission as Bill said. BUT: what if the 2 percent were the LAST 2 percent left? What is the minimum power requirement for MERs? And namely a) for being able to rove
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Sep 4 2006, 04:12 AM
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Member ![]() ![]() ![]() Group: Members Posts: 477 Joined: 2-March 05 Member No.: 180 |
But is the "mast" portion of the sundial truly necessary? Aren't the colored portions, mirrors, and B&W circles the truly important parts?
The real problem is that the fans aren't good enough. "Mars is very dusty; it was thought that dust coating the solar panels may kill the rovers by choking out the sunlight. Designers worried about it so much, the rovers actually have small fans designed to blow dust off the panels. But the fans have gotten a boost." |
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Sep 4 2006, 02:37 PM
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 |
The real problem is that the [ the rovers actually have small fans designed to blow dust off the panels.[/b] But the fans have gotten a boost." I learned it too late!!! I have enclosed the picture which shows sundial and their blowers at right and left sides. Correct me! Rodolfo |
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karolp Sundial sitting on solar panels Sep 2 2006, 03:03 PM
tfisher The "sundials" are the most photographed... Sep 2 2006, 03:29 PM
dot.dk And the HGA and the PMA takes up much more than 2 ... Sep 2 2006, 04:01 PM
karolp And I was not suggesting to toss'em as worthle... Sep 3 2006, 04:31 PM
climber QUOTE (karolp @ Sep 3 2006, 06:31 PM) And... Sep 3 2006, 04:46 PM
ljk4-1 QUOTE (climber @ Sep 3 2006, 12:46 PM) Do... Sep 5 2006, 12:51 PM
djellison 2% of 280 Whrs = 5.6 Whrs...
Via UHF - data costs... Sep 3 2006, 04:47 PM
bergadder QUOTE (Jeff7 @ Sep 4 2006, 12:12 AM) The ... Sep 4 2006, 05:00 AM

climber QUOTE (bergadder @ Sep 4 2006, 07:00 AM) ... Sep 4 2006, 07:26 AM
djellison QUOTE (Jeff7 @ Sep 4 2006, 05:12 AM) But ... Sep 4 2006, 07:29 AM

Jeff7 QUOTE (djellison @ Sep 4 2006, 03:29 AM) ... Sep 4 2006, 04:55 PM
ElkGroveDan QUOTE (Jeff7 @ Sep 3 2006, 08:12 PM) The ... Sep 5 2006, 02:55 PM
djellison No no - there ARE no blowers on the rovers - that... Sep 4 2006, 03:20 PM
RNeuhaus QUOTE (djellison @ Sep 4 2006, 10:20 AM) ... Sep 4 2006, 04:40 PM
djellison Top of the list in priority to be returned, but no... Sep 5 2006, 02:08 PM
MaxSt No way the sundial can shadow 5-10 cells from tota... Sep 6 2006, 03:20 PM
djellison It takes approx 2% of the deck area physically - a... Sep 6 2006, 03:27 PM![]() ![]() |
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