Results 1 to 7 of 7
Threaded View
-
09-07-2008, 09:40 PM #1
0C Coldroom Evaporator operating at 20C
Hi all,
I need to pick some brains.
I have to create a large coldroom (to be operated at 0C) and have selected the evaporator with the following:
- 3 off evaporators
- 25 kW duty
- Propylene glycol (35%) Supply/Return at -10C / -6C
- Air on / Air off at 2C / 0C
- 2off 800 diameter fans (100 Pa) per unit
Here comes my Story/Question: During the early project lifespan, the Coldroom shall be used for other purpose and operate at 20C (air off). However, the 3 evaporators must not change when changing from a 20C room to 0C room.
From my calculations - when operating at 20C, the evaporators are physically oversized as the LMTD differ greatly.
Any tips?
Does this mean that my valve station will be modulating alot?
Has anyone done this before.
Whats the dehumidification effect?
Regards,
Similar Threads
-
new coldroom installation
By chilltech in forum FundamentalsReplies: 8Last Post: 23-07-2009, 05:38 PM -
Coldroom
By Ray Ang SM in forum Trouble ShootingReplies: 16Last Post: 11-06-2008, 08:16 AM -
Coldroom
By Ray Ang SM in forum Technical SpeculationsReplies: 1Last Post: 08-06-2008, 04:00 AM -
problems with coldroom icing up
By goody in forum Trouble ShootingReplies: 40Last Post: 28-03-2008, 06:26 PM -
defrost on freezer coldroom
By andyh in forum ElectricalReplies: 11Last Post: 01-09-2006, 10:12 AM