Brine Chiller Wanted

http://en.wikipedia.org/wiki/Refrigeration

Having worked for Carrier Air conditioning, in the group that made very large chillers, the short answer is NOTHING is different from air conditioning to brine.

Willis Carrier, founder of the company, took an air conditioning chiller and sold it for brine, or more specifically to make ice for Madison Square Garden back in the early days. As the story goes, everyone told Dr. Carrier that it couldn't be done.

Long story short, Dr. Carrier got to the Garden an hour before the meeting with the owners and when the owners showed up, they found Dr. Carrier ice skating on the Garden floor... Pretty cool, I saw the film.

Laby

There can be major differences between brine chillers and chillers for standard a/c applications.One major difference depending on the operating temperature of the brine chiller is that lower temp chillers are sometimes designed to operate at low temps,ie the condenser is designed for a certain duty,the compressors selected on the suction pressure,the TEV may be set as an MOP device etc etc etc,raising the operating temp of the chiller will result in the system cooling more efficiently and consequently rejecting more heat through the condenser.Using a chiller designed for operating at -30C and asking it to operate at standard a/c temps say 6C/12C is asking for trouble.

There are many incorrectly applied chillers out there,check the small print on the tin is my advice.

Depending on the specific brine and its concentration (salt, glycol, calcium chloride, etc.), the metals used may vary as needed to resist corrosion. Also, the capacity of any compressors will vary according the evaporation temperature, which will ordinarily be lower than when chilling water. The general principles are the same, however.

Could you give some more specifics as to choice of brine, desired temperatures and flows, and capatity?

Brine chillers generally work at much lower temperatures. For a cryomachining application we needed a -20 Deg C chiller to cool Propylene Glycol coolant. This was supplied by Werner Finley.

You can visit their site and contact them for more info.

http://www.wernerfinley.com/

bioramani

There prety much they same except conventional chiller, the water circulated in the system does not go below 2 deg C, at 0 C and below water will start to crystalize and circulation will be a problem, thats why brine water comes in, they added some ingrients to water to lower its freezing or crystalization point. but take note, water has a large specific heat capacity(SHC) ( 1 Btu/lb-deg F) adding something to water lowers it, (to some degree, dont have now the SHC of Brines ) means that you can transfer higher energy at a lower volume than using brine.

That depends actually to your application, you can equate were to position.

Besides water is cheap.

Thats why on the other end of scale we used steam w/c is mainly water.

Hope this help.

Don't know the actual specific heat of brine but it's similar to water, which makes it one of the highest specific heat liquids.