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Power Dense Turbo-Compression Cooling Driven by Waste Heat

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-20-C-0630
Agency Tracking Number: N19A-013-0038
Amount: $1,099,956.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: N19A-T013
Solicitation Number: 19.A
Solicitation Year: 2019
Award Year: 2020
Award Start Date (Proposal Award Date): 2020-06-23
Award End Date (Contract End Date): 2023-03-03
Small Business Information
2101 N 30th Street
Tacoma, WA 98403-3318
United States
DUNS: 078823001
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Todd Bandhauer
 (970) 672-7661
Business Contact
 Michael Cushman
Phone: (508) 410-9230
Research Institution
 Colorado State University
 Bill Moseley
700 Meridian Ave. 1301 Campus Delivery
Fort Collins, CO 80523-6030
United States

 (970) 491-1541
 Nonprofit College or University

The U.S. Navy seeks methods to improve the fuel economy of marine diesel engines through utilization of waste heat. Low temperature engine jacket water, lubrication oil, and aftercooler air are largely untapped streams of thermal energy on these ships, but their utilization circumvents many operation challenges associated with exhaust gases. For example, variable and high exhaust gas temperatures cause thermal cycling of heat exchangers, whereas low temperature engine coolant rarely exceeds 90°C. However, this low temperature makes increasing system efficiency by =10% with a volume increase =4% very difficult due to the large heat exchanger volumes necessary to maximize energy conversion. Nevertheless, if these targets can be achieved by utilizing only low temperature heat, then U.S. Navy will be able to implement directed energy weapons and high power draw sensor technology onboard ships. In this Phase II STTR, Mantel and CSU will continue to develop a turbo-compression cooling system capable of meeting US Navy requirements for SSDG efficiency improvement, size/weight, and shipworthniess.

* Information listed above is at the time of submission. *

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