LET ME ANSER SOME OF YOUR QUESTIONS:
FIRST THE BLOCK WAS INSULATED EXCEPT THE BOTTOM OF THE COLD PLATE.
YES THE SIDE OF THE BLOCK STAYED CLOSE TO -27C THOUGH MOST OF THE TEST.
ALL THOUGH IT DID START TO RISE 5 MINUTES INTO THE LOAD AT FIRST,
BECAUSE I DIDNT HAVE ENOUGH FREON IN THE SYSTEM SO I ADDED A LITTLE BIT
MORE AND STARTED TO STAY AT -27C.
NOW THE PLET WAS RATED AT 156 WATTS AT 13.8 VOLTS AND I RAN IT WITH MY
40 AMP POWER SUPPLY,PELT DRAWS CLOSE TO 15 AMP AT LOAD.
NOW THE HOT SIDE OF THE PELT WAS AGAIST THE BOTTON OF THE BLOCK AND
THE BLOCK AND PELT ARE THE SAME SIZE 50MM X 50MM.I MACHINED A GROOVE
IN THE BOTTOM OF THE BLOCK TO PUT A TEMP PROBE CLOSE TO THE CPU CORE.
SO THE PROBE SAT AGAINST THE HOT SIDE OF THE PELT AND THE BLOCK THATS
HOW I DID THAT.NOW THE COMPRESSOR RETURN(SUCTION)LINE DOES HAVE FROST
TO THE COMPRESSOR WITH NO LOAD,BUT WHEN RUNNING A LOAD NO FROST.
THE COPPER IS ALLOY 110 I BELIEVE.THE BLOSK HAS 4 MAZES CONNECTED
.200 X.300 X 5 1/2 FEET LONG GROOVES.THAT GIVES THE FREON LONG ENOUGH
TIME TO TRANSFER THE HEAT.COST IS ABOUT $200.00.BUT THAT INCLUDES THE
PRICE OF MY PROTO TYPE UNIT.
NOW I HAVE DROPPED MY TEMPS EVEN MORE BY TWWEKING SOME MORE.
MAY METER WONT READ PAST -58F AND IT WILL GO PAST THAT NOW NO LOAD.
NOW BEFORE EVERYONE JUMPS UP AND SAYS R22 BOILS AT -40F SO IT CANNT
GET THAT COLD.LOOK AT A CHART AND MY COMPRESSOR RUNS IN A VACUUM
ON THE SUCTION SIDE OF ABOUT 12 INCHS OF VACUUM.AT THAT VACCUM R22
BOILS ABOUT -60F.
NOW HOW COME I GET THE TEMPS I GET.WELL......
I DESIGNED THE SYSTEM FROM SCRATH WITH THE MOST EFFICIENT USE OF
COMPONENTS I COULD.COMPRESSOR IS 1/4HP FOUND ANYTHING SMALLER DOESNT
HAVE ENOUGH SUCTION TO MAKE A STRONG VACCUM TO GET BELOW -40F.
THE CONDENSOR IS MOUNTED HORIZONTAL WITH NO TUBES GOING UP AND DOWN.
THIS KEEPS THE OIL AND FREON FROM COLLECTING IN A TUBE,ALSO KEEPS
A STEADY FLOW OF FREON TO THE CAPILARY TUBE.
THE CAPILARY TUBE IS RAN INSIDE OF THE SUCTION LINE FROM THE
COMPRESSOR TO INSIDE THE EVAP BLOCK.THIS MAKES THE RETURN GAS
SUPER COOL THE INCOMING LIQUID FREON, MAKING IT COLDER AND DENSER.
THE SUTION LINE IS BENT IN A WAY THAT IS ALMOST IMPOSSIBLE FOR LIQUID
FREON TO GET INTO THE COMPRESSOR
THE EVAPERATOR IT SELF IS MY DESIGN WITH A INJECTOR NOZZLE RIGHT OVER
THE CPU DIE SPRAYING SUPER COOLED FREON STRAIGHT ON THE BOTTOM PLATE
OF THE EVAPERATOR.AND RETURNING THOUGH A MAZE OF ALMOST 5FT 6"LONG
.I USED FLEXABLE AUTOMOTIVE AC HOSE TO ALOW EASY FLEXING AND MOUNTING
OF THE BLOCK TO THE BOARD.PROTO TYPE UNIT I USED COPPER AND FOUND IT
IS VERY HARD TO BEND EVEN SOFT COPPER TIME AND TIME AGAIN BETWEEN
CHANGING CPU'S.THIS IS MAJOR FAILURE OF THE UNITS YOU BY ONLINE.
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