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Unread 12-19-2002, 10:54 PM   #114
bowman1964
Cooling Savant
 
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Join Date: Jul 2002
Location: virginia usa
Posts: 126
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well trying to keep from posting 2 pictures ...lol what you think.

o well i show both

i have done a few more modifications to the unit.
one is I found the compressor heat load is very large.compressor would get to over 74c (165f) on the back side where it was getting no air.so as i am planning on siding this into my new tower case.i know it will get hotter if i didnt do something.so i have made a aluminum shroud that will force the air from the condensor to move around the compressor.and i added a small fan to help push it around the back of the compressor....that made a good improvement in my compressor temps.now adveraging about 65c (155f)which i dont worry about.

second a also made a aluminum cover for my flow control vavles and made a nice place to put my video gpu coldplate temperture readout.

i fully insulated the evaperator this time and removed my load plate .temps dropped so fast i almost lost track.in 45 minutes the chiller (4.5 liters of coolant) dropped from 21.1c (70f) to -25c (-13f)
started up the video peltier and coldplate went to -48.0c (-54.4f)
while the chiller maintained a temp of -21.6c (-7f)
the evaperator for the cpu dropped to -44-4c (-48f) in a record time of under 3 minutes 2 1/2 minutes to be more acurate.but as the refridgerant floods the evaperator the temps will rise because of excess refridgerant.starts to flow like a liquid and boil off much slower.but as soon as a heat load is applied it will come back to life.as i have set the charge for a heat loaded evaperator.i set it with a 80 watt peltier and got it to maintain a temp of -30c with full load.




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custom r502 cooled unit.CPU running @-18C GPU -21C Chipset -20c
only one like it.in one case.
custom r502 cooling unit

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