In Reply to: Washer fluid heater? n/m, Jonathan Scupin [Profile/Gallery] , Thu, 15 Oct 2009 14:39:35

Well,
it's 12V boiler with approx 1 Ohm DC resistance so with 14V DC supplied it should give about 200 (rounded-up) watts. Water is having about 4200 joules per degree per kilogram. So it'll take about an hour for 4 liters (4/5 of washer tank volume) to be heated for 40 degrees up (Celsius or Kelvin), e.g. from -20C to 20C so there should be some margin of safety not to boil my washer out. Also both headlight lenses and windscreen would be heated up enough long before the washer (not to give me any cracks).

The inputs for this project are:
- Yes, I'm aware of special winter fluids
- I that guy who dilutes the winter fluid according to current outdoors temperature. It's not only about money but also about the alcohol that evaporates if its too strong. You pull the stick and see nice streams coming out from the nozzles, but in a few seconds you're having iced windscreen.
- I've got headlight washers on my C900 so my washer fluid consumption isn't that small as on cars lacking of headlight washers/wipers. And I'm not going to give headlight washers/wipers up!
- I'm that guy who can pour some mixture today and drive the car in a week or two. Having 0C today (32F) and -25C (-10F) the week after will give me a piece of ice instead of fluid in the washer tank
- it's a darn nice problem to get this boiler inside C900 stock tank and secure it that way so it will not damage the tank even if I turn it on and forget about it! And I solved it!

Well, I do know that I'm lacking of level and temperature sensors, but I'll probably add them after some run-in.

Stay tuned for more reports coming!
Zig

P.S.
The thing that I'm mostly afraid of is that the fluid will evaporate once heated up just like strong alcohol does. In this case this mod will be used only for defrosting purposes.

posted by 77.37.1...

• Question: what's this about?, Siegfried, Thu, 15 Oct 2009 09:51:16
  • curling iron, saab86, Sat, 17 Oct 2009 05:20:04
  • water heater, not good for chemicals, bic, Fri, 16 Oct 2009 13:42:13
  • Re: Question: what's this about?, Simon S, Thu, 15 Oct 2009 14:41:02
    • Simon, you've got silver! :), Siegfried, Thu, 15 Oct 2009 15:42:09
      • Re: Simon, you've got silver! :), Simon S, Thu, 15 Oct 2009 20:00:18
        • I thought about that, Siegfried, Thu, 15 Oct 2009 21:03:11
          • may be hard to find alcohol in Russia, saab86, Sat, 17 Oct 2009 05:22:48
            • Any country that can export vodka to the space station, SaabStalker a.k.a. FMyers, Sat, 17 Oct 2009 05:47:22
              • yeah just splash it on, saab86, Sat, 17 Oct 2009 06:38:58
          • What are the low temps you're dealing with? nm, Simon S, Fri, 16 Oct 2009 08:33:43
            • from 40F to -20F (n/m), Siegfried, Fri, 16 Oct 2009 09:20:13
              • Re: from 40F to -20F (n/m), Simon S, Fri, 16 Oct 2009 11:03:49
                • It's pretty dirty, Siegfried, Fri, 16 Oct 2009 11:36:34
  • Washer fluid heater? n/m, Jonathan Scupin , Thu, 15 Oct 2009 14:39:35
    • And the winner is... Jonathan Scupin! Congrats!, Siegfried, Thu, 15 Oct 2009 15:15:37 <-- Viewing This Message
  • Heater for your coffee cup. nm, Roy, Thu, 15 Oct 2009 13:42:41
    • I was joking but thought it was for your overflow to, Roy, Fri, 16 Oct 2009 07:42:46
    • pretty close, but it's not for me but for my C900 (nm), Siegfried, Thu, 15 Oct 2009 13:48:37
      • Your C900 drinks coffee?!? n/m, vsfoxe , Thu, 15 Oct 2009 15:21:00
        • Tea, mostly tea and premium gas, Siegfried, Thu, 15 Oct 2009 15:30:41
  • Oh, There was to be a picture I was to view?, SaabStalker a.k.a F Myers, Thu, 15 Oct 2009 10:35:23
  • Re: I wonder?, SaabStalker a.k.a F Myers, Thu, 15 Oct 2009 10:05:06
    • Re: I wonder?, Landjet , Thu, 15 Oct 2009 10:42:22
      • So I was right (sort of) w/o seeing a picture??!!, SaabStalker a.k.a F Myers, Thu, 15 Oct 2009 11:07:23
        • nope (n/m), The Great Carnack, Thu, 15 Oct 2009 11:23:03
          • Well you had me there... cause I thought I was tramping, SaabStalker a.k.a F Myers, Thu, 15 Oct 2009 12:18:06
            • What do you think of when you think of winter?, Siegfried, Thu, 15 Oct 2009 13:44:00
              • Ziggy the pictures did not work at home either., SaabStalker a.k.a. FMyers, Thu, 15 Oct 2009 19:39:34

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