Results 1 to 5 of 5
Thread: New evaporator on chest freezer
-
02-12-2013, 10:33 PM #1
improving poster
- Join Date
- Aug 2013
- Location
- Portugal
- Posts
- 20
- Rep Power
- 0
New evaporator on chest freezer
Hi!
I have made a new evaporator for a little 12v chest freezer, the original one have a leak.
The evaporator was made of 1/4 cooper tube.
I used dancap to estimate the length of the cap tube, the goal was an evaporator temp of -20ºc, the compressor is 63w rated at this temperature.
It was ended like this:
Room temp 17ºc (it's cold here)
Evaporation temp -25ºc
Condenser temp 25ºc
Superheat 7k
The condenser is ventilated by fan.
The condenser temperature seems low , isn't it?
Should I increase the cap tube lengh? if I do that the evaporator temperature won't get lower?
-
02-12-2013, 11:14 PM #2
Moderator
I am starting to push the Mods: of RE Site Moderator : and general nice guy
- Join Date
- Mar 2001
- Location
- Dorset
- Age
- 76
- Posts
- 11,025
- Rep Power
- 60
Re: New evaporator on chest freezer
What is the refrigerant?
Brian - Newton Abbot, Devon, UK
Retired March 2015
-
02-12-2013, 11:29 PM #3
improving poster
- Join Date
- Aug 2013
- Location
- Portugal
- Posts
- 20
- Rep Power
- 0
Re: New evaporator on chest freezer
The refrigerant is r134a.
Originally Posted by Brian_UK
-
03-12-2013, 02:16 PM #4
improving poster
- Join Date
- Aug 2013
- Location
- Portugal
- Posts
- 20
- Rep Power
- 0
Re: New evaporator on chest freezer
It looks like this:
20131203_134131.jpg
-
03-12-2013, 02:19 PM #5
improving poster
- Join Date
- Aug 2013
- Location
- Portugal
- Posts
- 20
- Rep Power
- 0
Re: New evaporator on chest freezer
It looks like this:
20131203_134131.jpg
