RE: Chilled Water Storage Tank

From: <Steve>
Date: Mon Mar 21 2005 - 15:40:00 EST

Hi Rommel

I did a number of these some years back. They were all mild steel (cheapest) and horizontal axis with torispherical ends. I used BS5500 for the code although they was no code requirement. Cant remember the pressure but it would have been around 3-5 bar. The support saddles took an age to work out. If you need a "stratified" system to keep the chiller capacity down remember you cannot use the density difference of water to stratify the charge as water is at its minimum volume at about 40F. I used baffles and mesh diffuser plates; seemed to work although space limitations required multiple vessels to be used which helped stratification.
For higher pressures, long skinny tanks are cheaper than short fat ones, but watch the supports as they get awfully complicated if you need more than two saddles.

Cheers

Steve

-----Original Message-----

From: rommel noderama [mailto:nrommelh@yahoo.com] Sent: Monday, March 21, 2005 11:46 PM
To: PipingDesign@yahoogroups.com
Subject: [PipingDesign] Chilled Water Storage Tank

Team,

I have a chilled water storage tank project, can anybody provide me a website that can provide me the knowlede on whats the best economical materials to be use, the procedure for fabrication upto finishing, tank design, etc. The storage tank capacity is 36,000 gallons, max. pressure is 100 psi, chilled water temperature to be maintain @ 44 F, maximum ambient temperature is 90 F, storage tank is fully insulated with SUS cladding.

Thanks and best regards,

Rommel

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