Page 3 of 3 FirstFirst 123
Results 21 to 30 of 30

Thread: Cold Weather Hard Drive

  1. #21
    Constant Bitrate
    Join Date
    Apr 2003
    Location
    Canada
    Posts
    148
    Thats a cool idea! So did you just flip the peltier, or did you just switch the polarity?

  2. #22
    Variable Bitrate
    Join Date
    Jul 2000
    Location
    Jackson, MS, USA
    Posts
    233
    i have a quantum 4.3G in mine. on really cold days (below freezing) the hard drive doesn't wanna boot, but if iw ait a few minutes for the car to warm up a little and then reset the power on the PC, it comes up fine. i guess the motor in it doesn't like the cold.
    24 y/o w/ Silver/Red
    2000 Honda S2000

    http://www.squeezer.net

  3. #23
    Constant Bitrate
    Join Date
    Dec 2003
    Location
    Germany
    Posts
    207
    Quote Originally Posted by greenglo
    Thats a cool idea! So did you just flip the peltier, or did you just switch the polarity?

    I just flipped it since I didnt wanna bother to re-solder the Peltier

    Jeeve5
    Lilliput 7" TS TFT, ASRock K7VM2, Duron 1,3 GHz, 512 MB DDR RAM, 30 GB Seagate HDD @ 5.400 rpm, WLAN w/ 500mW booster, Toshiba Slimline DVD-ROM Drive, D-Link USB Radio

    Download the German Voicepack 1.0 for FreeDrive now!

  4. #24
    Newbie
    Join Date
    Nov 2003
    Location
    Colorado
    Posts
    26
    Quote Originally Posted by Jeeve5
    Since it got below freezing around where I live I ran into the problem that the HDD sometimes won't start until it got a little bit warmer inside the car.

    That is why I took a old Peltier that I used to use for overclocking the CPU and attacked it to the HDD. It gets warm quite fast and I can start the PC about 30 secs after I turned on the Peltier. It is a bit dangerous though, because if you forget to turn it of there is a chance you fry your HDD. That is why I am currently soldering up a timing device that turns off the Peltier after 90 secs.

    Jeeve5
    I have been looking into using a Peltier in this way, but I would want some way to regulate the amount of heating it does. Someone suggested using a circuit with a thermistor, but I'm not skilled enough to design my own circuit. I found this product that looks like it would do the job:

    http://www.ovenind.com/html/5C7_350.html

    But it's $62. Add to that a temperature sensor ($10-$20), and a Peltier (small ones run $15-20), and I'm up to $100 just to avoid the inconvenience of warming my car up for 5-10 minutes before starting the computer.

  5. #25
    Constant Bitrate
    Join Date
    Apr 2003
    Location
    Canada
    Posts
    148
    Do peltiers have to be mounted directly onto something, or could they be mounted just off something and provide radiant heat?

  6. #26
    Newbie
    Join Date
    Nov 2003
    Location
    Colorado
    Posts
    26
    Quote Originally Posted by greenglo
    Do peltiers have to be mounted directly onto something, or could they be mounted just off something and provide radiant heat?
    From what I understand, all a Peltier does is move heat from one side to the other. This makes one side hot and one side cold. I don't think it would be very good for radiant heat since the net effect would be zero.

  7. #27
    Variable Bitrate
    Join Date
    Dec 2003
    Location
    Michigan
    Posts
    314
    Quote Originally Posted by sigma957
    From what I understand, all a Peltier does is move heat from one side to the other. This makes one side hot and one side cold. I don't think it would be very good for radiant heat since the net effect would be zero.
    that is true, own side gets hot while the other side gets cold, however, radiant heating/cooling is exactly how the 12v coolers work. It's just a matter of enclosing whichever side you want to use radiantly, and blowing a fan across both sides. Plus the blowing fan makes it more efficient.
    2006 Chevy Colorado: VIA M10000 EDEN, 1 GB RAM, 80 GB 2.5" Seagate HDD, USB Slim Slot DVD/RW, Holux GPS, MobileVU 10.4" LCD (touch not working yet), VOOMPC Case (blue), 70W DC-DC supply.

  8. #28
    Newbie
    Join Date
    Nov 2003
    Location
    Colorado
    Posts
    26
    Quote Originally Posted by Jackso
    that is true, own side gets hot while the other side gets cold, however, radiant heating/cooling is exactly how the 12v coolers work. It's just a matter of enclosing whichever side you want to use radiantly, and blowing a fan across both sides. Plus the blowing fan makes it more efficient.
    I'm not sure I understand what you mean. If I attached the peltier to the inside of the computer case (cold side to the case, hot side open to the air), could I effectively warm up the inside of the computer?

  9. #29
    Constant Bitrate
    Join Date
    Apr 2003
    Location
    Canada
    Posts
    148
    Well not sure it would work very well in a cold car. It does transfer heat, and I'd imagine that without very much heat to transfer it wouldn't do a heck of a lot. I'm sure someone will dazzle us with their physics knowledge. Until then we can all stick those glorified hair dryers / space heater thingies in our computers.

  10. #30
    Variable Bitrate
    Join Date
    Dec 2003
    Location
    Michigan
    Posts
    314
    Quote Originally Posted by sigma957
    I'm not sure I understand what you mean. If I attached the peltier to the inside of the computer case (cold side to the case, hot side open to the air), could I effectively warm up the inside of the computer?
    Actually the other way around. Hot side into the case, cold side to open air, and you'll warm the case. Be careful though the peltiers in 12v coolers will warm to something like 150 degrees F when set to warm and will freeze water when set to cool. This obviously depends upon the size of the peltier and the running time.

    Every cooling system known to modern man has a net affect of zero (actually worse, mechanical things create heat), that is why we seperate the hot bits from the cold ones. The coils on a fridge are outside the space you wish to keep cool. Airconditioners vent warm outside and blow cool inside. Thus, if you set a window airconditioner in the center of the room, the room would never cool, it would actually get warmer as more heat is created than cool (due to the mechanical parts creating heat).
    2006 Chevy Colorado: VIA M10000 EDEN, 1 GB RAM, 80 GB 2.5" Seagate HDD, USB Slim Slot DVD/RW, Holux GPS, MobileVU 10.4" LCD (touch not working yet), VOOMPC Case (blue), 70W DC-DC supply.

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Cold hard drive fluid bearing data loss
    By Mikesz in forum General Hardware Discussion
    Replies: 2
    Last Post: 12-13-2003, 08:17 PM
  2. All-electronic flash drive and solid state hard drive
    By Typhoon747 in forum General Hardware Discussion
    Replies: 12
    Last Post: 12-12-2003, 03:20 PM
  3. How does a hard drive just die?
    By Sleeka in forum General Hardware Discussion
    Replies: 10
    Last Post: 08-08-2002, 03:27 PM
  4. External notebook hard drive help
    By mtmsol in forum General Hardware Discussion
    Replies: 4
    Last Post: 04-18-2002, 01:24 PM
  5. hard drive failure in cold temps
    By mg6134 in forum General Hardware Discussion
    Replies: 6
    Last Post: 02-14-2002, 04:56 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •