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Thread: Q about superheat in evaporators
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06-08-2004, 09:45 AM #1
Q about superheat in evaporators
Hi, all,
the situation: we have to choose evaporator for cold room.
Evap.temp. is -10 Grad C. Program needs superheat - I can input 4.6 K. Is it good value? Or better to use 3 K?
Thanks for your answer!
Andrew
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06-08-2004, 11:20 AM #2
Re: Q about superheat in evaporators
4.5 K - good. But may be 3 K is better?
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06-08-2004, 11:24 AM #3
Re: Q about superheat in evaporators
Will not give a diffrence that you can measure.
3K is too small for a normal TEV.
Chose 4 to 6 or 4.512223It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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06-08-2004, 11:39 AM #4
Re: Q about superheat in evaporators
What does it mean - "TEV"?
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06-08-2004, 12:11 PM #5
Re: Q about superheat in evaporators
Thanks for translation - I use German language (and Russian).
Bot instead thermostatic EV we can use electronic EV. In this case we get - I begin to understand - we can use smaller evaporator. And save money!
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06-08-2004, 12:20 PM #6
Re: Q about superheat in evaporators
Yeah! Agree!
thanks for the discussions - I am electrical engineer, but I work in refrigeration field. And I try to understand what does it mean - superheat etc.
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06-08-2004, 04:09 PM #7
Re: Q about superheat in evaporators
Very fruitful discussion
Chemi
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06-08-2004, 04:49 PM #8
Re: Q about superheat in evaporators
Hi
small superheats are nice, but wrecked compressors are not. I would tend to go for a say 5K superheats, possibly higher, less posibility of hunting at low loading and less posibility of liquid carryover. If you want a fully flooded evaporator, buy one and the suction vessel to go with it, that is the most effecient plant. If you use direct expansion be prepared to accept less that book superheat for the sake of relyable plant.
Kind Regards. Andy.
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07-08-2004, 12:15 AM #9
Re: Q about superheat in evaporators
Originally Posted by Marc O'Brien
Thermostatic Expansion Valve is the generic description.Prof Sporlan
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