Cogeneration and Absorption Chillers

too many unknows. Simple cycle gas turbines? Boiler/steam turbines.

You chiller plant will the waste heat, to know the waste heat, only your power plant vendor can tell you the amount and level of the waste heat.

techman09

Does your gas turbine plant presently have some sort of heat recovery such as a hi temp hot water generator or a waste heat steam boiler ?

If so how do you run it - open, closed or combined cycle and what are the percentages of the the run time in each mode? Is it run 24/7 or is it run as a "peaking" plant?

If not is your company willing to make the investment in some heat recovery equipment and the absorber and the auxiliary equipment you will need?

What are you planning to do with the cold water that you make? Building/plant/process cooling or inlet air cooling?

If you plan on using it for inlet air cooling you will most likely never recover your investment( or even come close to it) with a plant as small as yours unless your location is extremely hot all year long.

If your plan is inlet air cooling an evaporative system would be MUCH CHEAPER and would boost your kW production considerably depending on ambient air temps and humidity.

My plant has a 1200 Ton absorber that we use on a cold water loop for building cooling. It has been an expensive maintenance headache since day one. It has crystallized a couple of times and gone through a couple of spray pumps at nearly $20K(US) a pop. If we used our absorber for inlet air cooling we would pick up maybe 3000 to 4000kW production for 4 months a year at best ( if it doesn't break down as it has the last 2 summers) It is cheaper in our situation to buy the power off the grid.

You have a lot to consider before going this route.

Ed

Thanks.

Can anyone suggest any good books and material for cogeneration with absorption chiller?

Ammonia Absorption Refrigeration in Industrial Processes by Marcel Bogat, Gulf Publishing

Geeeeehhhhhhh!!!!! I believe it will be at 1:2 ratio aproximatly may be little flexible as well. I don't sure, but I guess that as soon as you have a nice LiBr at good operating temperature for your chiller you are on your way to cool things without much trouble. Probably by installing an automatic shut off gas by sensor on the chiller solution to control heat input into the LiBr solution just to satisfy demands as need it. But anyway the best bet will be to check it out with chiller manufacturer to be on the safe side.

They have the technology,

MC