Re: pump and fan - Saab 900 Bulletin Board - Saabnet.com
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re: avoiding waste heat.
I suppose the main advantage of avoiding waste heat is that it saves fuel energy off the top.
The second advantage is that you don't have to expend yet more energy to get rid of it. At speed, cooling is mainly passive, so the energy drain is low (aerodynamic drag, alternator drag, and slight pump friction). Probably not enough to worry about this year.
The thermodynamic angels should bless a cool engine. A blue sky suggestion: if the engine runs cool enough, can you get away with a smaller radiator, and using the grill space to instead cool the turbocharged air? Parallel intercoolers?
posted by 69.12.207...
Posts in this Thread:
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- Do cooler operating temps reduce mechanical losses?, mag , Mon, 13 Jul 2009 02:54:45
- Re: Do cooler operating temps reduce mechanical losses?, Ari , Tue, 14 Jul 2009 04:19:15
- Let's leave the politics aside ..., mag , Mon, 13 Jul 2009 21:41:35
- Re: Do cooler operating temps reduce mechanical losses?, mag , Mon, 13 Jul 2009 13:48:16
- I have never used ethanol,, tibbidoh , Mon, 13 Jul 2009 15:46:26
- Re: I have never used ethanol, mag , Mon, 13 Jul 2009 20:13:08
- Re: I have never used ethanol - me either, oldsaab, Mon, 13 Jul 2009 17:09:44
- Re: I have never used ethanol,, Justin VanAbrahams , Mon, 13 Jul 2009 16:35:33
- Re: Do cooler operating temps reduce mechanical losses?, tibbidoh , Mon, 13 Jul 2009 07:00:39
- Re: Do cooler operating temps reduce mechanical losses?, Landjet , Mon, 13 Jul 2009 05:18:29
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