Results 1 to 6 of 6
Thread: System design
-
28-08-2007, 10:09 PM #1
System design
so having some time on hand and my mind working in overdrive as always, i had the brilliant idea of building my own unit, would be a reefer unit for a rigid box......
BUT... only being in the trade for about 4 years now, i havent the slightest idea of where to start
does anyone know where i can find info on unit design? also any advice would help as usual and credit will be given where its due.
ciao
-
29-08-2007, 08:58 AM #2
Re: System design
Well start with the box, how big, how well insulated, figure out how much heat gain it will have. Figure out the product that will go in it and how much and at what temp you need to keep it at and at what humidity!
From there size the evap and expansion valve, then from that size the condencing plant.
-
29-08-2007, 09:24 PM #3
Re: System design
Thats the problem as the application of the unit will vary.... Box sizes and insulation will vary from 38 cubic metres to 63 cubic metres with 50 mm to 100mm polyurethane or styrofoam walls. Same goes for the product, anything from +20 to - 25 degrees celsius.
The heat penetration and humidity will also be a non constant as our weather and all that also varies a lot from one region to the next.
ciao
-
29-08-2007, 09:37 PM #4
Re: System design
It would also have to be a self contained unit with electric standby.
The best way i figured it was to strap a generator on the back of small 3 cyl engine and use it to power a compressor (like the copeland) fans and all that. would also like to use manuli type hoses, less copper = less pipes prone to break.
-
29-08-2007, 10:31 PM #5
-
30-08-2007, 08:11 PM #6
Similar Threads
-
Daikin fault codes
By Chris2005 in forum Air ConditioningReplies: 45Last Post: 21-03-2012, 10:09 PM -
Autocascade refrigeration system: design verification needed
By DaBit in forum Technical SpeculationsReplies: 3Last Post: 07-02-2010, 07:48 AM -
how to design bubble pump of DAR system
By tony utomo in forum NH3Replies: 2Last Post: 02-06-2008, 03:53 AM -
System design: first cost or operating cost?
By US Iceman in forum NH3Replies: 35Last Post: 13-12-2006, 11:51 AM -
R507 in an R134a compressor: system design
By DaBit in forum Technical SpeculationsReplies: 17Last Post: 01-05-2003, 09:25 AM