HIGH DENSITY CHEMICAL THERMAL STORAGE SYSTEM FOR LOW GRAVITY ENVIRONMENTS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$497,987.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
12079
Agency Tracking Number:
12079
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P.o. Box 1086, Boulder City, NV, 89005
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Uwe Rockenfell
President
(702) 293-0851
Business Contact:
UWE ROCKENFELL
PRESIDENT
(702) 293-0851
Research Institute:
n/a
Abstract
THERMAL STORAGE SYSTEMS ARE NEEDED FOR EFFECTIVE THERMAL MANAGEMENT ON MANNED SPACECRAFT AND PLANETARY BASED SYSTEMS. THERMAL STORAGE EQUIPMENT HAS THE POTENTIAL TO REDUCE THE OVERALL SYSTEM MASS BY DECREASING THE CAPACITY REQUIREMENTS OF HEAT PUMPS, REFRIGERATORS AND CHILLERS THROUGH LOAD LEVELING. TODAY'S THERMAL STORAGE CONCEPTS, HOWEVER, ARE INADEQUATE FOR SPACE APPLICATION, SINCE THE ENERGY DENSITIES ARE VERY LOW (333 KJ/KG THEORETICAL MAXIMUM FOR ICE COOL STORAGE) AND NONE OF THE ENVIRONMENTALLY SAFE SYSTEMS CAN PROVIDE DUAL TEMPERATURE (HEAT AND COOL) STORAGE. THEREFORE, IT IS PROPOSED TO DEVELOP A WATER BASED CHEMICAL ABSORPTION PROCESS WHICH PROVIDES COOL AND HEAT STORAGE AT ENERGY DENSITIES THREE TIMES HIGHER THAN OBTAINABLE WITH ICE, EUTECTIC SALTS, CLATHRATES OR SENSIBLE THERMAL STORAGE SYSTEMS. THE PROPOSED SYSTEM IS BASED ON THE ABSORPTION OF WATER VAPOR INTO SELECTED AQUEOUS SOLUTIONS, IS ENVIRONMENTALLY SAFE AND BENEFITS FROM LOW GRAVITY ENVIRONMENTS. THE PHASE I OBJECTIVE IS TO IDENTIFY SUITABLE SORPTION SYSTEMS, MEASURE THE KEY PROPERTIES, DESIGN THE PRINCIPAL HARDWARE CONFIGURATION AND PROVIDE EXPERIMENTAL PROOF-OF-PRINCIPLE. PHASE II WILL THEN FOCUS ON THE DETERMINATION OF HEAT AND MASS TRANSFER ADDITIVIES AND THE CONSTRUCTION AND TEST OF A PROTOTYPE THERMAL STORAGE SYSTEM.

* information listed above is at the time of submission.

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