FLUIDIZED BED FOR PREVENTION OF FREEZING IN CRYOGENIC HEAT EXCHANGERS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$50,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
5426
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
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
ELIA P DEMETRI
(617) 964-2042
Business Contact:
() -
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.

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