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?
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
This one looks interesting. But it apears that the company is no longer with us...
http://andyschroder.com/rotartica.html
I know this is rally old but I have a 30 ton Yazaki .work if you have any questions