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tjk2007
19-09-2007, 06:08 AM
Hi Friends,

Hereby i would like to know details for supermarket Refrigeration.A supermarket at dubai comprises Sales areas for Fruits,Bakeries,Meats,storage & Freezing of Meats,Fishes also.

I am in the responsibility to Calculate heat load calculations for each room and cabinets and design pipelines.

We are having the thumb rules only.

Kindly refer me a outline for calculations,softwares & websites.

Hope you do this help to me.

Thank you,

Regards,
TJK

Brian_UK
19-09-2007, 11:22 PM
I think TJK that as Project Engineer you should have this information and capability already.

I would suggest that you contact a specialist to design the equipment for you and therefore prevent any design failures and heavy costs to yourselves and your reputation.

Dan
20-09-2007, 01:32 AM
Major manufacturers publish their Btu requirements on their web sites. Look under technical information, case specifications etc. Some have quick reference tables too.

Example: http://hillphoenix.com/information/data_sheets/2007_DX_Data.pdf

750 Valve
20-09-2007, 12:18 PM
Sounds like someone bit off more than they can chew :D

I strongly suggest listening to Brian

But if you must do it then get all the case ratings (capacity and saturated suction temp) from whatever brand cases you intend to use, size the rooms yourself like normal rooms but allow for high usage.
And if you haven't sized rooms before then please refer to my second line. Have you ever sized pipework before? These programs help BUT you have to know what you are doing with them, as they say - no liability for misuse.

Coolpack (http://www.et.web.mek.dtu.dk/Coolpack/UK/download.html) is a really good design tool

Dircalc (http://www.danfoss.com/North_America/BusinessAreas/Refrigeration+and+Air+Conditioning/Product+Selection+Tools+Details/DIRcalc.htm) from danfoss will help with pipe sizing

Good luck and for a fee I will be happy to do your job for you :D