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Old 02-16-2009, 06:44 PM   #1 (permalink)
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are there any practical things we can do with hot radiator water ?

its easy to divert the coolant hoses in a car -the veg oil diesel guys have taught us that.

what *practical* things can we do with hot water for energy saving?

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Old 02-16-2009, 06:46 PM   #2 (permalink)
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Put it in a thermos and release it again on next start-up.
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Old 02-16-2009, 06:49 PM   #3 (permalink)
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what about heating up lots of water with a heat exchanger and then using that water for heating your house?
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Old 02-16-2009, 06:51 PM   #4 (permalink)
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You think there is THAT much heated water?
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Old 02-16-2009, 06:56 PM   #5 (permalink)
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how could that be retro fitted to a car? could we re-route the coolant hoses to a big 10-20litre insulated tank in the trunk or passenger foot-well?
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Old 02-16-2009, 06:58 PM   #6 (permalink)
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obviously we would need to add more storage for the home heating idea
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Old 02-16-2009, 07:01 PM   #7 (permalink)
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That could be. I don't think 10-20 l will cut it. Imagine a 5 gal pail of boiling water in your house. I don't think there's an appreciable amount of heat there.

I reckon there's calcs to show how much energy is in, say, a 55 gallon drum of coolant at x temperature. Of course, that drum would have 459 lbs of coolant in it...
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Old 02-16-2009, 07:07 PM   #8 (permalink)
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actually i started this post because i was thinking about the steam engine idea but from a practical DIY perspective.
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Old 02-16-2009, 07:14 PM   #9 (permalink)
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the thermos flask for hot start up idea would work with a 20litre tank. from my biodiesel days, i know that a 20litre tank should keep its heat over-night if insulated. if its positioned in the passenger footwell the escaping heat would nicely warm the car. but would the weight be an issue?
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Old 02-16-2009, 07:31 PM   #10 (permalink)
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would it be practical to make a steam engine to replace the alternator using these components?

heat exchanger from ebay -boiler
drill pump from ebay -turbine
drill -alternator
your existing radiator -condenser
a solenoid valve -to do the reciprocating

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