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Author Topic: HX heat loss  (Read 1470 times)

George Scofield

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HX heat loss
« on: January 03, 2015, 09:39:29 AM »

Can anybody tell me what to expect in heat loss out of a 50 plate heat exchanger if the water from owb is 180 and the water coming through to be reheated is around 160? Any info is appreciated.
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Stihl 056 av magnum II
Husky 25 ton splitter
2012 ram 1500

LittleJohn

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Re: HX heat loss
« Reply #1 on: January 05, 2015, 07:50:19 AM »

This is NOT OFFICIAL or anything but I always assume at least a 5 degree lose when going thru a HX.  I know the whole conservation of energy thing (from school & science classes), but in the real world there is this thing that is called resistant, it affects everything

...but then again 95% of the time I am running a mixing valve on the secondary side of the HX before I get to the manifold, so I don't really need 180F water anyway.  Cause the underfloor plates do not need more than about 140F MAX, and the in slab closer to 120F MAX
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George Scofield

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Re: HX heat loss
« Reply #2 on: January 05, 2015, 09:02:55 AM »

Thanks for the input.
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Stihl 056 av magnum II
Husky 25 ton splitter
2012 ram 1500