phase change project

robmac · 18 Apr 2006 at 23:46

just thought i would share my latest project iam building for a friend

its a small 1/5 hp r600 compressor
stainless braided flex line-600mm long
stepper evaporator made by me

will be using r290 for gas as i have had good results with this and my evaps.

added a little desuperheat coil as the condensor is quite small.

hope you like it.

robmac · 18 Apr 2006 at 23:53

already built one for myself with same setup and getting -55.c evap-idle
-35.c-cpu-idle.
-46.c-evap-full load and -10.c-cpu-full load.
not going to talk pricing as i make these for people.
not as expensive as you might think though.
keep the cost down by making my own evaps and flex lines.
cpu is xp3000-754-2gig @3gig [email protected] volts.

robmac · 19 Apr 2006 at 00:04

m3csl2004 said:
xp3000 754? - either amd64 3000+ or 754 or skt a athlon xp3000+ (im impressed if its the latter, they do kick out some heat with volts)

robmac · 19 Apr 2006 at 00:11

volt9291 said:
Nice mate, looks like a good bit of work. Any pics of the one on your rig?

robmac · 19 Apr 2006 at 00:11

m3csl2004 said:
its a venice

that good or bad?

robmac · 19 Apr 2006 at 00:12

Kesnel said:
Looking good.

Do you have any detailed pictures of the evap and its design (internals etc)?

its a classic stepper design.........not going to give my secrets away though!!

robmac · 19 Apr 2006 at 19:48

trojan698 said:
Nice. If you fancy building me one of these, drop me an email

whats your e-mail

robmac · 19 Apr 2006 at 23:15

only got access to some r404a, sorry. but that would be a lot better than 134a.

robmac · 20 Apr 2006 at 07:19

no!

if you have the right equipment.........which i have.

robmac · 20 Apr 2006 at 07:50

not really no. the loudest thing on it is the 120mm fan, that is controllable to run from 12volts down to 5 volts. the compressors make an almost inaudible hum.

robmac · 20 Apr 2006 at 10:48

Heofz said:
is there some sort of arrangement we can come to regarding modding my mach II to r404a ?

/edit: also i'm starting to notice that my compressor is making some noise (sort of like the noise a fridge makes, but more constant and higher pitched) is this something you can fix?

i'm in derby so you would need to get the unit to me.

robmac · 20 Apr 2006 at 20:03

Heofz said:
do you have msn?

[email protected]