Secondery Glycol systems

[JCDARBY]

Hi there,
Was wondering if any one knows of any sites or carries out service work anywhere where they are using glycol as a secondery refrigerant in a cool store for the long term storage of kiwi fruit??

Any info would be much appreciated.

[mad fridgie]

Hi are you wanting to use the Kiwi hydro-chiller, or are you just looking for a dry coil (like a normal air evap and fan) either way there is not a great issue. In some ways some what easier to control load fluctuations.
Of course efficiency is going to be a bit lower.

[samiam]

Hi,

I've glycol secondary system for 0oC storage rooms via a PHE from an ammonia system.

Is this what you looking for.

Samiam

[JCDARBY]

Hi Samiam, are the storage rooms used for kiwi fruit?

[Magoo]

Hi JC DARBY.
Kiwi fruit storage rooms require high humidity as well as low temps, from memory +1.0C., 95 + %RH. Nerve racking stuff. Hence the development of thermofresh saturated coolers. You can use glycol in cools, less harsh than DX. I looked after several similar stores years ago, and to get a good nights sleep use to spray water over the chiller floor everynight before going home, to ensure the RH didnot drop and stuff up millions of dollars of fruit overnight.
magoo