Absorbtion cooler efficiency?

[BioHazard]

Recently I have been thinking very hard about providing heat/AC for the entire industrial complex where my shop is with a good sized NG cogenerator. I am very interested in the Yazaki "water fired" absorbtion chillers, though I'm still waiting to find out just how many arms/legs they cost.

What I'm wondering about is the efficiency of an absorbtion chiller such as that? I mean as far as BTU input via hot water, how many BTUs of cooling output do you get per BTU of heat input? Is there a rough rule of thumb that I can use?

[mobile_bob]

looks like single effect chillers are about .6 COP, and double effect about 1.0COP

http://www.stanford.edu/group/narratives/classes/08-09/CEE215/ReferenceLibrary/Chillers/AbsorptionChillerGuideline.pdf

page 5 goes into the efficiencies

bob g

[Ronmar]

This one looks interesting.  But it apears that the company is no longer with us...

http://andyschroder.com/rotartica.html

[Seafarer12]

I know this is rally old but I have a 30 ton Yazaki .work if you have any questions