Advice needed

Posted by Steve Lusardi on August 26, 2008, 12:30 am

I need to assemble a cold plate system for a marine freezer for the boat I
am building. I have purchased 3 used cold plates aproximately 18" x 24" x 4"
that appear to be in good condition. They all have evaporator valves with
them. I am aware that I must change the medium inside the cold plates for
the freezer application. I have no experience with refrigeration systems, so
I will need a lot of help. The goal is to freeze down the plates once every
24 hours or more. The heat load will vary widely in this application. I will
need an evaporation temperature around -40 for the medium I wish to use. I
would like to also use a raw water cooled condensor for space reasons. I
also want to mount the machinery in the engine space which is physically
separated from the evaporators by about 20'. I need help in sizing/choosing
the compressor, the accumulator and the refrigerant at least.. Should I use
a controller, unique valving or other components that I have not mentioned?
Could the system be designed to be self regulating? It would be better if I
do the machinery installation, as I know the boat, but I will have the
system professionally charged and tested. I know no one with this
experience, so any advice is welcome. Effectively, I am looking for a
reliable design.
Thanks in advance,
Steve

Posted by KJPRO on August 26, 2008, 2:59 am

> Effectively, I am looking for a reliable design.

Who would have thought?

Posted by Steve Lusardi on August 26, 2008, 7:11 am

You translated the english well, but can you help?
Steve

>> Effectively, I am looking for a reliable design.

> Who would have thought?
>

Posted by on August 26, 2008, 4:05 am

On Tue, 26 Aug 2008 06:30:23 +0200, "Steve Lusardi"

>I need to assemble a cold plate system for a marine freezer for the boat I
>am building. I have purchased 3 used cold plates aproximately 18" x 24" x 4"
>that appear to be in good condition. They all have evaporator valves with
>them. I am aware that I must change the medium inside the cold plates for
>the freezer application. I have no experience with refrigeration systems, so
>I will need a lot of help. The goal is to freeze down the plates once every
>24 hours or more. The heat load will vary widely in this application. I will
>need an evaporation temperature around -40 for the medium I wish to use. I
>would like to also use a raw water cooled condensor for space reasons. I
>also want to mount the machinery in the engine space which is physically
>separated from the evaporators by about 20'. I need help in sizing/choosing
>the compressor, the accumulator and the refrigerant at least.. Should I use
>a controller, unique valving or other components that I have not mentioned?
>Could the system be designed to be self regulating? It would be better if I
>do the machinery installation, as I know the boat, but I will have the
>system professionally charged and tested. I know no one with this
>experience, so any advice is welcome. Effectively, I am looking for a
>reliable design.
>Thanks in advance,
>Steve

Don't want much, do you ?

--
Click here every day to feed an animal that needs you today !!!
www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
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Posted by Steve Lusardi on August 26, 2008, 7:15 am

I don't know, but that's why I asked. Do you know?
Steve

> On Tue, 26 Aug 2008 06:30:23 +0200, "Steve Lusardi"

>>I need to assemble a cold plate system for a marine freezer for the boat I
>>am building. I have purchased 3 used cold plates aproximately 18" x 24" x
>>4"
>>that appear to be in good condition. They all have evaporator valves with
>>them. I am aware that I must change the medium inside the cold plates for
>>the freezer application. I have no experience with refrigeration systems,
>>so
>>I will need a lot of help. The goal is to freeze down the plates once
>>every
>>24 hours or more. The heat load will vary widely in this application. I
>>will
>>need an evaporation temperature around -40 for the medium I wish to use. I
>>would like to also use a raw water cooled condensor for space reasons. I
>>also want to mount the machinery in the engine space which is physically
>>separated from the evaporators by about 20'. I need help in
>>sizing/choosing
>>the compressor, the accumulator and the refrigerant at least.. Should I
>>use
>>a controller, unique valving or other components that I have not
>>mentioned?
>>Could the system be designed to be self regulating? It would be better if
>>I
>>do the machinery installation, as I know the boat, but I will have the
>>system professionally charged and tested. I know no one with this
>>experience, so any advice is welcome. Effectively, I am looking for a
>>reliable design.
>>Thanks in advance,
>>Steve

> Don't want much, do you ?
> --
> Click here every day to feed an animal that needs you today !!!
> www.theanimalrescuesite.com/
> Paul ( pjm @ pobox . com ) - remove spaces to email me
> 'Some days, it's just not worth chewing through the restraints.'
> 'With sufficient thrust, pigs fly just fine.'
> HVAC/R program for Palm PDA's
> Free demo online at www.pmilligan.net/palm/
> Free 'People finder' program now at www.pmilligan.net/finder.htm

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