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abbasi
02-12-2004, 11:25 AM
Can any body tel me about cold storage design


evaporator condenser etc



i am sure peter will have his say



c ya
Abbasi

chemi-cool
02-12-2004, 03:58 PM
Hi abbasi,

To design a cold room you will need to know:
1. Size.
2. Substance to be cooled, what temp it goes in, how fast it need to be cooled.
3. Power consumption of light and fan motors.
4. how many times, doors are opened.
5. Storage temp.
6. Walls material, heat transfer rate w/m2/h

Now you can start to design the unit ;)

Peter is defiantly invited to have his say

Good luck

Chemi :)

Peter_1
02-12-2004, 07:30 PM
Waw, I'm honored Abbasi.
But in this forum, most of those who post regulary can do this of help you.
Chemi covered already the most.
Why not use Coolpack for this?
I should add: running time of the machine/day.
Gas to be used?
Do you have latent heat to cool? (fruit, vegetables...)
Desired humidity in the room?
What kind of brand will you use or is available in your country?

Post eventually a more specific question so that we can help you further or was your question more a general one?

You also have my email adress.

Kind regards.


Peter

frank
02-12-2004, 10:20 PM
Don't forget to allow for fork truck movements and occupancy if it is a large coldroom :)

Abe
02-12-2004, 10:47 PM
Can any body tel me about cold storage design
c ya
Abbasi

Its like asking how long is a piece of string..........

The question you pose is too open ended. To benefit from a seasoned and valid response you need to expend more time and effort posting a thread which contains more detail and information on what it is you are after or trying to achieve.

I am reminded of an exam question which required a specific answer. The student threw in all he knew, hoping that the relevant bits would be contained within his diatribe and the examiner would lift those bits out and award him.......

Needless to say...........he flunked

shogun7
03-12-2004, 04:20 AM
[QUOTE=abbasi]Can any body tel me about cold storage design

The following is from the
2002 ASHRAE Refrigeration Handbook (SI) Chapter 13 and is only a small excerpt on cold storage facilities.
Typically, the height of refrigerated spaces is at least 8.5 to 10.5 m
or more clear space between the floor and structural steel to allow
forklift operation. Pallet rack systems use the greater height. The
practical height for stacking pallets without racks is 4.5 to 5.5 m.
The clear space above the pallet stacks is used for air units, air
Figure 1 shows the layout of a one-story –23°C freezer that complies
with current practices. The following essential items and functions
are considered:
• Refrigeration machinery room
• Refrigerated shipping docks with seal-cushion closures on the
doors
• Automatic doors
• Batten doors or strip curtains
• Low-temperature storage held at –23°C or lower
• Pallet-rack systems to facilitate the handling of small lots and to
comply with first-in, first-out inventory, which is required for
some products
• Blast freezer or separate sharp freezer room for isolation of products
being frozen
• Cooler or convertible space
• Space for brokerage offices
• Space for empty pallet storage and repair
• Space for shop and battery charging
• Automatic sprinklers in accordance with National Fire Protection
Association (NFPA) regulations
• Trucker/employee break area
• Valve stations for underfloor heating
• Evaporative condenser(s) location
Other areas that must be in a complete operable facility are
• Electrical area
• Shipping office
• Administration office
• Personnel welfare facilities :o

MANIS
05-12-2004, 12:51 AM
Can any body tel me about cold storage design
evaporator condenser etc
Abbasi

Abbasi after all this important tips and reply I will recommend you a easy way just have a look for " Modern Refrigeration and Air-con" Book ,,,,,,
there you will find all the relevant answers along with easy calculation tips.

Regards .....

Dan
05-12-2004, 01:13 AM
Its like asking how long is a piece of string..........

The question you pose is too open ended. To benefit from a seasoned and valid response you need to expend more time and effort posting a thread which contains more detail and information on what it is you are after or trying to achieve.

Aiyub, you remind me of an old comedy/magic routine from way back. The magician held up a piece of string and announced that it was a normal piece of string. It had two ends. One on each.

Needless to say, he was British.:)

coolkev
05-12-2004, 01:41 PM
:cool: Had to add,many years ago a cleaner friend of mine was asked by boss how long does a mop last. His answer,you guessed it "How long is a piece of string" Very relevant reply i thought

chemi-cool
07-12-2004, 07:58 PM
Hi abbasi.
Found this page in an Alfa Laval catalogue.

Hope it will add something.

Chemi

botrous
04-01-2005, 01:42 PM
Hey there you can always benefit from some books like the ashrea handbooks and other ones , anyway i can send you a simple software that will do the load estimation for a cold store for you , but it is in french , so if anyone is interrested in that, just PM me .

botrous
06-01-2005, 08:17 PM
Hey guys , i uploaded the software to the net for you , it's free (as i know) , just go to www.kesserwan.net/INST_CF.EXE and click save .