2013



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  1. #1
    Join Date
    Mar 2012
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    India
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    Need to build an Phase Changer Rig as part of an academic project, please help


    Alright am new to this forum but not new to Refrigeration and Air Conditioning, I know the basics pretty much but I fail to understand how to construct an Evaporator and how to design a Condenser. I would like if you could give me a design to design an evaporator and the basics of a CPU evaporator, how should I go about mounting it onto the motherboard.

    It would be good if you can suggest me evaporators that can me made on Lathe or a Milling machine as I have access to those in my University.

    PS: This is a budget setup without much money(I dont have a job yet).


    I could bend 1/4" Cu tubes and make a maze but I dunno how to install fins and then encase the condenser(heat exchanger) I would like a good headsup on that too. If I posted in the wrong section, moderators please correct me

    Note : I don't have a compressor yet but what kinda compressor would be the best? I would use r134A or Propane as refrigerant. The total thermal load should be around 100-125W.

    So will a 1/8 Hp reciprocating compressor do the trick or should I go for higher power rating?

    I would also like to keep the electricity consumption to the least and I might use a exhaust fan (AC) to induce air into the heat exchanger. I would really appreciate if you could suggest me which pipe and how much of it should I buy, because I need to build the whole rig within 8 days from today.



  2. #2
    Join Date
    Apr 2011
    Location
    Russia
    Age
    41
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    Re: Need to build an Phase Changer Rig as part of an academic project, please help

    So you know how to build compressor. How many days it takes for you?

  3. #3
    Join Date
    Mar 2001
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    Dorset
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    Re: Need to build an Phase Changer Rig as part of an academic project, please help

    Make a water cooled condenser it may be quicker/easier than a finned tube model.

    Also check out the overclocker forums, this one has several evaporator designs for you to look at...
    http://www.overclockers.com/build-yo...ooling-system/
    Last edited by Brian_UK; 05-03-2012 at 12:31 AM.
    Brian - Torquay, Devon, UK
    I have to stop saying "how stupid can you be?" to my co-workers.
    They're starting to take it as a challenge...

    BASIC MAINTENANCE. If it doesn't move and it should then use WD40. If it moves but it shouldn't then use Duct Tape.

  4. #4
    Join Date
    Apr 2011
    Location
    Russia
    Age
    41
    Posts
    101
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    3

    Re: Need to build an Phase Changer Rig as part of an academic project, please help

    I suppose it is easyer to disassemble old frige than build homemade coils.

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