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Coupled Free-Piston Stirling Engine (FPSE), Stirling Cooler, and Absorption…

Award Information

Department of Defense
Office of the Secretary of Defense
Award ID:
Program Year/Program:
2010 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
OSD 09T002
Solicitation Number:
Small Business Information
1840 Terminal Drive  Richland , WA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: Coupled Free-Piston Stirling Engine (FPSE), Stirling Cooler, and Absorption Chiller (FROST) for Shelter Air Conditioning
Agency / Branch: DOD / OSD
Contract: N00014-10-M-0054
Award Amount: $99,749.00


The cost of logistical fuels, including transportation and distribution, is significant. According to the Defense Energy Support Center, nearly $3B was spent on fuel in 2007. The increasing use of electronics is driving a growing need for shelter air conditioning, which in turn is another demand for fuel. Existing Environmental Control Units (ECU) coupled to electrical generators can provide the necessary cooling, but are inefficient. In recent years, the DoD has pursued a wide range of technologies for tactical power generation and environmental control. Feasibility demonstrations of novel power sources, such as fuel-cells, have produced units with one or more key deficiencies such as short operating life, poor reliability, excessive weight, and/or inability to use logistics fuels. An energy efficient solution that conserves fuel is needed while still generating sufficient cooling effect for electronic systems. Infinia, with support from Washington State University, proposes to develop a Free-Piston Stirling Engine (FPSE) coupled to a Stirling Cooler and Absorption Chiller (FROST) powered by a JP-8 burner. At the core of the system is Infinia-Ys long-life hermetically sealed Stirling engine. This unique combination of technologies will deliver 7.2 refrigeration tons at 46,aF in a 95,aF ambient with a COP of 0.87 to 0.93.

Principal Investigator:

Songgang Qui
Vice President of Research and Deve

Business Contact:

Jason Modrell
Director of Goverment Programs
Small Business Information at Submission:

6811 West Okanogan Place Kennewick, WA 99336

EIN/Tax ID: 911319589
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Washington State University
PO Box 642920
Pullman, WA 99164
Contact: Daniel Nordquist
Contact Phone: 5093358654