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Thread: Water Sweating from HRW unit
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15-06-2013, 03:56 PM #1
Water Sweating from HRW unit
Hi friends...
Recently we had installed the HRW ( Heat Recovery Wheel ) for OT.mine problem is that, outside the unit water is sweating, for this i have attached the pics also.i was unable to find the right
Photo0161.jpg
solution for it.what may be the problem..? any suggestions..
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15-06-2013, 07:05 PM #2
Re: Water Sweating from HRW unit
LOL are you using it as a supply pre-cooler! What are your outside air conditions? What are the exhaust air conditions? measure these two conditions and post them here for explanation.
Last edited by hookster; 15-06-2013 at 07:08 PM. Reason: addition
I love the smell of Ammonia in the morning!
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15-06-2013, 07:55 PM #3
Re: Water Sweating from HRW unit
Anil,
To answer your questions,
It is happening because the exposed surfaces are at a temperature below the dew point of the surrounding air and the solution is to lag (=insulate) it better.
The bigger question is what is causing the surfaces to be that cold in the first place and here I agree with Hookster, we do need more information.
It would be interesting to know both humidity and temperatures of the ambient, supply and extract air.
.
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18-06-2013, 03:31 AM #4
Re: Water Sweating from HRW unit
@hookster and Viking: below is the details of it: 1) Intake Flow CFM.................1124.5 2) Intake frequency ................55 Hz 3) Exhaust frequency...............35 Hz 4) Delta p ( Pa )......................3 5) Air Velocity.............Min.....0.22 Max.....0.48 ......0.376 6) Noise........Ambient ..........22.5 db with Ac............50.5 db i hope, i have given all the information...
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18-06-2013, 07:09 PM #5
Re: Water Sweating from HRW unit
Lots of information there Anil, sadly none of which we need to help you with this issue.
What we do need is real life measured temperatures and humidities.
Sorry
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19-06-2013, 08:53 PM #6
Re: Water Sweating from HRW unit
Hi Anil as per Viking request its temp/RH issues you have here. I am expecting very high humidity on the exhaust due to the nature of mining conditions. If you like look at this http://en.wikipedia.org/wiki/Thermal_wheel it will probably answer your questions.
I love the smell of Ammonia in the morning!