Further improvements for this project will include breakthroughs in microchannel heat exchanger technology and improvements in the MOF's thermal properties. Both advances will help reduce the size and weight of the chiller further and squeeze out more cooling efficiency.
"This will be the most advanced adsorption cooling system ever developed, and these advances are needed to meet very demanding military requirements," McGrail said.
PNNL's military system will run off of waste heat coming from a diesel generator. This could reduce the diesel fuel use needed to cool field military installations by up to 50 percent. The planned 3-kilowatt unit will weigh about 180 pounds and take up about 8 cubic feet.
This isn't the first time the two systems have received support. PNNL began developing its MOF adsorption chiller for commercial buildings in 2010, when PNNL received ARPA-E funding for the BEET-IT, program. PNNL also received ARPA-E funding in 2011 to adapt the adsorption chiller to heat and cool electric vehicles with minimal impact on driving distance.
|Contact: Franny White|
DOE/Pacific Northwest National Laboratory