22 May 2008

DEVELOPMENT OF A “HYBRID” ABSORPTION CHILLER FOR COMBINED HEAT AND POWER SYSTEMS


The objective of this effort was the development and testing of an absorption chiller optimized
for integration with waste heat from a reciprocating engine in a Combined Heat and Power
(CHP) system. The design, which can provide 30% more cooling capacity than a typical
single-effect absorption chiller, has been named a “hybrid chiller” due to the fact that it
couples a double-effect cycle using exhaust energy and a single-effect cycle using jacket
water energy. In this paper, the design of the chiller will be described along with presentation
of results from component and system testing of a 387 kW full-scale prototype.