FLUIDIZED BED FOR PREVENTION OF FREEZING IN CRYOGENIC HEAT EXCHANGERS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 5426
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Advanced Mechanical Technology
151 California St, Newton, MA, 02158
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 ELIA P DEMETRI
 (617) 964-2042
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A SERIOUS PROBLEM IN HEAT EXCHANGERS WHERE ATMOSPHERIC AIR IS COOLED TO CRYOGENIC TEMPERATURES IS THAT THE AMBIENT WATER VAPOR AND CO(2) FREEZE ONTO THE HEAT TRANSFER SURFACES. AS THE SOLID DEPOSITS ACCUMULATE THEY ADVERSELY AFFECT PERFORMANCE BY DECREASING HEAT EXCHANGER EFFECTIVENESS AND INCREASING PRESSURE DROP. AN INNOVATIVE APPROACH FOR DEALING WITH THE FREEZING PROBLEM WHICH OFFERS SIGNIFICANT POTENTIAL ADVANTAGES OVER CONVENTIONAL TECHNIQUES IS THE USE OF A FLUIDIZED BED HEAT EXCHANGER. AN EXPERIMENTAL AND ANALYTICAL PROGRAM IS PROPOSED TO INVESTIGATE THE TECHNICAL FEASIBILITY OF IMPLEMENTING THIS CONCEPT IN CRYOGENIC APPLICATIONS. PARAMETRIC TESTS WILL BE CONDUCTED ON LABORATORY-SCALE MODELS TO OBTAIN DETAILED EXPERIMENTAL DATA ON THE KEY TECHNICAL ISSUES RELATIVE TO THE APPLICABILITY OF THE CONCEPT. ANALYSIS AND CORRELATION OF THE TEST RESULTS WILL PROVIDE A DEFINITIVE ASSESSMENT OF FEASIBILITY AND WILL IDENTIFY THE SPECIFIC DEVELOPMENT REQUIREMENTS FOR EVENTUAL FULL-SCALE IMPLEMENTATION.

* 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