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Thread: evaporator types
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17-11-2007, 11:13 AM #1
evaporator types
Hello all
I need some decent information,if possible.
How many types of evaporator are there?
Is the coil in a forced air evaporator larger or smaller than the coil in a gravity type evaporator?
Which type of evap,is always full of liquid Refrigerant?
What type of evaporator would you use on an ammonia system?
cheers in advance.
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17-11-2007, 11:24 PM #2
Re: evaporator types
Seems that someone here has got a test coming up soon and they haven't done enough research yet
You tell us what you think the answers are and we'll mark your answersBrian - Newton Abbot, Devon, UK
Retired March 2015
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18-11-2007, 12:51 AM #3
Re: evaporator types
Originally Posted by sparrow
That's a bogus question! Why would an ammonia system have a different type of evaporator from some other refrigerant?
These look like test questions, and the last one is reaching...
Sorry, you should start by answering your own questions or reading the book.If all else fails, ask for help.
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18-11-2007, 08:16 AM #4
Re: evaporator types
Us Iceman you are on the money. If we were to answer the various questions regarding evaporators unless you have a grounding in the basics or mechanical refrigeration the discussion would be meaning less. The literature that describes this important section of a refrigeration circuit is very available especially on the World Wide Web. Go to it and come back to us with what you find.
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18-11-2007, 09:21 AM #5
Re: evaporator types
Sparrow, found some answers yet?
It'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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18-11-2007, 11:38 AM #6
Re: evaporator types
Guys the test as you rightly suggested has been done by the remainder of my course, I was away on a vehicle a/c course in Swansea. Whilst I appreciate that you wish me to find the answers myself a good location site address would suffice.
I do not wish you to get the wrong impression here, I have been on Google, and also Ask .com wikipedia does not have an extensive library of refrigeration facts.
I have some ideas on what I believe are the correct answers but I need to know why, can I at least get some assistance on the Ammonia side I have never worked on anything bigger than small domestic appliances that had an ammonia fill as the refrigerant.
Sparow
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18-11-2007, 03:53 PM #7
Re: evaporator types
Hi,
Sparow..,try dees 2 books n enjoy ur self lol
Principles of ref-by marsh n oliva.
Principles of ref-
2nd aditn..by roy j.dossat.......
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18-11-2007, 07:27 PM #8
Re: evaporator types
Well, I don't mean to be difficult.. but the questions you posted are some where "someone" has a specific answer in mind for each one of the questions.
While some of the questions are more clear than others, it appears these were from a class lecture with "these are the answers" spelled out.
As I tried to hint at earlier, the questions are somewhat misleading, while others are somewhat more traditional.
I'll help with two of them.
Flooded, direct expansion, or liquid overfeed
Forced convection coils could be smaller in physical size.
Somewhere in these two answers, lie the remainder of your answers.If all else fails, ask for help.
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18-11-2007, 07:49 PM #9
Re: evaporator types
Thank you both for your help