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Thread: blast freezer
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04-05-2010, 07:26 AM #1
blast freezer
could anybody tell me anything about i want to make blast freezer with condensing unit hsn 7471-75
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04-05-2010, 07:31 AM #2
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Re: blast freezer
Blast freezer construction doesn't start with condensing unit. It finishes with it.
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05-05-2010, 05:25 PM #3
Re: blast freezer
more info needed,what size the room what type of product what is the temperature of the product,basically the heat load,ambient etc.
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08-05-2010, 12:43 PM #4
Re: blast freezer
HSN7471-75 is a Bitzer Semi Hermetic Screw Compressor. You still need an evaporator, condenser and all the necessary equipment and controls to make it work.
This compressor can give 44.4 Kw at -45 Deg. C suction and 40 Deg. C Condensing with R 507A, based on 10 K suction superheat and liquid subcooling.
So, you should be able to pull down 12000 kg of Sardines from 12 Deg. C to -25 Deg. C core temperature in about 14 hours.
Freezer room size should be approximately 5 X 4 X 3.2 meter high to accommodate product and evaporator, with neccessary fans and false ceilingI am not always right, but I'm never wrong!
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