STTR Phase I: Condensing Ejector for Second-Step Compression in Reversed Rankine Cycle

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0610613
Agency Tracking Number: 0610613
Amount: $99,992.00
Phase: Phase I
Program: STTR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: CT
Solicitation Number: NSF 05-605
Small Business Information
68 Winterhill Road, Madison, CT, 06443
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mark Bergander
 (203) 421-3562
Business Contact
 Mark Bergander
Phone: (203) 421-3562
Research Institution
 Univ of MA Amherst
 David P Schmidt
 Box 33285
Amherst, MA, 01003
 (413) 545-1393
 Nonprofit college or university
This Small Business Technology Transfer Phase I project is the research and analysis of critical two-phase flow in condensing ejectors.. This proposal takes a novel and broad-based approach to analyzing the two-phase flow processes and brings about the possibility of substantial improvement in design methodology for various components of energy systems. In particular, the application of critical two-phase flow devices will lead to development of more efficient thermodynamic cycles for refrigeration and A/C and in the future possibly also for propulsion and energy production. Use of a condensing ejector as a second step compression in a reverse-Rankine thermodynamic model has demonstrated that by using, the efficiency of vapor compression refrigeration cycle can be improved by as much as 40%. Considering $40 Bln per year spent for refrigeration and A/C in US, this can translate into an annual savings of $8 Bln even if only half of this efficiency improvement is realized in practice.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government