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27-04-2011, 01:51 PM #20
Re: Ammonia Vs ***** for potato storage
Hi, mustafalam
Welcome to RE forums...
You are building a new potato cold store for 3000 tons .... not small and simple project and design ... can you provide some more technical info about design to be able to give you some more advices ... of course if you (your consultant) like it ...
I'll suggest you indirect cooling (ammonia-glycol chiller) with ammonia as a primary refrigerant and ethylene glycol as a secondary refrigerant.
see this...
http://www.sabroe.com/products/stand...ers-recip.html
http://www.sabroe.com/products/stand...ers-screw.html
http://www.sabroe.com/fileadmin/file...009.09_scr.pdf
http://www.sabroe.com/fileadmin/file...008.10_scr.pdf
amount of ammonia within above chillers is very small ....
With all my respect to your consultant, but seems he is without any experience with ammonia .... there is no any reason to use ***** R-22 or any other for primary refrigerant
Sun energy you can use to reheat your potato before delivery to the market .... also to have a warm/hot water all around your facility almost for free ...
Maybe you can use winter cold air (I believe sometimes you have very low temperature about or even below 0*C) for cooling your potato directly ....
Dear mustafaalam, you have many possibilities to build a good cold store, but you can miss the target too ....
Best regards, Josip
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Don't ever underestimate the power of stupid people when they are in large groups.
Please, don't teach me how to be stupid....
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