A VERY HIGH EFFECTIVENESS HEAT EXCHANGER FOR REVERSE BRAYTONCRYOCOOLERS

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$500,000.00
Award Year:
1990
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
10835
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Alabama Cryogenic Engineering
Po Box 2470, Huntsville, AL, 35804
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr John B Hendricks
Principal Investigator
(205) 536-8629
Business Contact:
() -
Research Institution:
n/a
Abstract
THERE IS AN ACUTE NEED FOR VERY HIGH EFFICIENCY HEAT EXCHANGERS IN CRYOGENIC APPLICATIONS. THE GOAL OF PHASE I IS A HEAT EXCHANGER DESIGN WITH AN EFFECTIVENESS 0.99. THE HEAT EXCHANGER GEOMETRY IS A PERFORATED, PARALLELPLATE TYPE. THE DESIGN METHODOLOGY ENTAILS EXPLICIT CALCULATION OF HEAT TRANSFER RATES AND PRESSURE DROPS BY CONSIDERING LONGITUDINAL THERMAL CONDUCTION, BOUNDARY LAYER DEVELOPMENT, PROPERTIES OF TEMPERATURE FLUIDS AND MATERIALS,PLATE ALIGNMENT, AND PLATE SPACING. CONSIDERABLE EFFORT WILL BE DEVOTED TO DETERMINING THE PLATE FIN EFFECTIVENESS, AS THIS EFFECT CAN LIMIT SIGNIFICANTLY THE OVER-ALL HEAT TRANSFER RATE. A DESIGN PROGRAM WILL BE DEVELOPED THAT CALCULATES THE HEAT EXCHANGER PARAMETERS BASED ON CONSIDERATION OF THE LISTED EFFECTS.

* information listed above is at the time of submission.

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