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creating water chiller


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37 replies to this topic

#21 Samurai Appliance Repair Man

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Posted 03 March 2006 - 05:00 PM

[user=1610]douggiestyle[/user] wrote:

could i just skip the cap and switch to a txv.

That would be optimum; txv systems are much more efficient than cap tube ones.

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#22 exsearsguy

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Posted 03 March 2006 - 06:13 PM

An accumulator is just a big tube  to let excess refrigerant boil off. Bring the suction line from the evap into the bottom and suction line to compressor out the top. TEV that small will be hard to find I think. Might find an AEV. I think I would stick with a cap tube, tho. Keep it simple. TEV with parallel evaporators would mean making a distributor of some sort. Two or more cap tubes crimped into your drier and fed into your evaporators would act like a distributor.

#23 douggiestyle

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Posted 04 March 2006 - 07:07 AM

anything either of you can do to help with sizing the evaporator to a compressor would be appreciated. even a direct to the appropiate tables and formulas.

thanks

doug

 

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#24 exsearsguy

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Posted 04 March 2006 - 09:57 AM

Douggie,remember I'm not an engineer and I did not stay at a Holiday Inn Express last night. I think that if you can figure the length of the tubing in the evaporator in whatever system you cannibalize,divide by 5, assuming your system is fan forced.Rough figures,but maybe a starting point.

#25 douggiestyle

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Posted 04 March 2006 - 10:05 AM

i understand exsearsguy. its just that i can not find anything concerning tables or formulas anywhere on the net. its driving me batty. i cannot even find a discription of an aev.
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#26 exsearsguy

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Posted 04 March 2006 - 10:17 AM

Douggie, the way I got my figures goes way back to mid-70's when I was in school. As I recall,giving a figure of 1 to a tube not fan forced, a fan forced system gets a 3 and a water cooled system gets a 15. Dividing 15 by 3 equals 5. Probably not exactly right but it's a start.An aev keeps a constant pressure in the evaporator. A tev keeps a constant superheat. Aev's are usually used on equipment that has a relatively constant load.

#27 douggiestyle

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Posted 04 March 2006 - 10:48 AM

like the holiday inn comment.
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#28 Samurai Appliance Repair Man

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Posted 05 March 2006 - 04:19 AM

Still rounding up some info for you, douggie. I should have some real goodies in a couple days.

Sit tight, it'll be worth the wait... I hope. :grunt:

#29 douggiestyle

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Posted 06 March 2006 - 11:44 AM

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#30 Samurai Appliance Repair Man

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Posted 06 March 2006 - 01:34 PM

[user=1610]douggiestyle[/user] wrote:

Posted Image


Posted Image

#31 douggiestyle

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Posted 08 March 2006 - 06:06 AM

i have to ask.

 

what is that pic?

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#32 exsearsguy

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Posted 08 March 2006 - 08:21 AM

I have to ask what did you write and what is that pic?

#33 douggiestyle

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Posted 08 March 2006 - 08:53 AM

arigatougozaimasu

thank you

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#34 Samurai Appliance Repair Man

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Posted 09 March 2006 - 01:40 AM

[user=1610]douggiestyle[/user] wrote:

i have to ask.

 

what is that pic?

I was just having a bad hair day. I feel better now, though. :)

#35 douggiestyle

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Posted 10 March 2006 - 03:59 AM

where are my goodies? :)
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#36 Samurai Appliance Repair Man

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Posted 10 March 2006 - 04:09 AM

That's what I'm asking RSES! I wanted to have access to their Service Application Manual (SAM) online, which has loads of info on all aspects of refrigeration systems in pdf file format. But you have to be a member to do that.

So, on Sunday, I filled out a membership application at the RSES website, www.rses.org, and paid the $101 membership fee with a credit card. Have not heard anything from them and have been completely unable to get a human on the phone despite calling at various times throughout the day. They accept credit card payment of membership but then they have to manually process it? Hang in there, as soon as I get it, you'll have all the goodies you want!

#37 douggiestyle

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Posted 10 March 2006 - 06:11 AM

you did all that for me?

i didnt know you cared.

jeez, now i feel bad :(.

thank you

 

 

 

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#38 Samurai Appliance Repair Man

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Posted 10 March 2006 - 06:44 AM

Yeah, ain't I special? No, I've been wanting to do it for a while now and your endeavor here provided the opportunity. Ain't no thang.

I got through to RSES this morning and a nice lady there got me all accessified into the SAM. Wading through it now.




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