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nzjetboating.com Forums => Engines => Tech Library => Cooling System => Topic started by: alex657 on March 15, 2016, 09:40:16 AM

Title: Heat exchanger volume
Post by: alex657 on March 15, 2016, 09:40:16 AM
Hi just wondering how to figure out sizes for a heat exchange I was wondering if the size of the heat exchanger had to do with the volume of coolant the engine holds? I'm Lookin at useing a egr cooler off a duramax I have a few clean ones laying around (http://uploads.tapatalk-cdn.com/20160314/1b4b084fc431b605fb0f64a3b17e81a7.jpg)
Title: Re: Heat exchanger volume
Post by: Paul on March 15, 2016, 09:44:15 AM
Pics showing the inside?  How big is the engine?  What HP?
Title: Re: Heat exchanger volume
Post by: alex657 on March 15, 2016, 09:48:48 AM
(http://uploads.tapatalk-cdn.com/20160314/9d792a1432a70849b9c17d998031a3ed.jpg) 150hp 3cylinder turbo
Title: Re: Heat exchanger volume
Post by: alex657 on March 15, 2016, 10:09:35 AM

Pics showing the inside?  How big is the engine?  What HP?
(http://uploads.tapatalk-cdn.com/20160314/e6b27cfe7501f6be5d9f87be134aa467.jpg)
Title: Re: Heat exchanger volume
Post by: Paul on March 15, 2016, 11:12:44 AM
That's a nice heat exchanger and being able to cope with exhaust temps should be fine for coolant.  The core is fairly short though, and it has a small'ish-number of larger-tubes (which limits tube surface area). I'd suspect one of those should probably be good for cooling 150-200HP.

Is it stainless or something else plated\chromed.  Stainless has worse heat-transfer so would de-rate how much HP it could cool.
Title: Re: Heat exchanger volume
Post by: alex657 on March 15, 2016, 11:24:18 AM

That's a nice heat exchanger and being able to cope with exhaust temps should be fine for coolant.  The core is fairly short though, and it has a small'ish-number of larger-tubes (which limits tube surface area). I'd suspect one of those should probably be good for cooling 150-200HP.

Is it stainless or something else plated\chromed.  Stainless has worse heat-transfer so would de-rate how much HP it could cool.
yeah heat shouldn't be an issue my pickup runs 1600on the egt gauge and that's what the cooler is off, I do believe it is stainless it isn't magnetic... I was thinking about useing 2 of them but maybe that's to much