POWER SYSTEM-

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 2565
Amount: $49,900.00
Phase: Phase I
Program: SBIR
Awards Year: 1985
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Energy Engineering, Inc.
4616 Mcleod Road, Ne, Albuquerque, NM, 87109
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR. K. THOMAS FELDMAN, JR
 PRINCIPAL INVESTIGATOR
 (505) 836-4182
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROJECT WILL INVESTIGATE THE FEASIBILITY OF A PAS- SIVE-PUMPED RANKINE CYCLE POWER GENERATOR SUITABLE FOR USE IN A SPACE NUCLEAR POWER SYSTEM. THE SYSTEM WILL OPERATE ON A THERMODYNAMIC CYCLE THAT IS A MODIFICATION OF THE CONVENTIONAL RANKINE CYCLE, IN WHICH THE NORMAL BOILER FEED PUMP IS REPLACED BY A "PASSIVE PUMPING MODULE" (PPM) AND THE WORKING FLUID IS A SUITABLE ORGANIC FLUID. THIS NEW ORGANIC VAPOR CYCLE IS ATTRACTIVE BECAUSE IT CAN BE USED EFFECTIVELY WITH MEDIUM TEMPERATURE HEAT SOURCES INCLUDING RADIO- ISOTOPES, REACTORS, OR SOLAR COLLECTORS. THE PARASITIC POWER REQUIRED FOR THE BOILER FEED PUMP IN MEDIUM TEMPERATURE CONVENTIONAL ORGANIC RANKINE CYCLE POWER SYSTEMS TESTED TO DATE CAN BE 20% TO 30% OF THE SYSTEM OUTPUT POWER. BY REPLACING THE BOILER FEED PUMP BY THE PPM, THE PARASITIC PUMPING POWER SHOULD BE ONLY 2% TO 3% OF THE OUTPUT POWER. THUS, THE USE OF THE PPM PROMISES HIGHER SYSTEM EFFICIENCY, LIGHTER WEIGHT, AND HIGHER RELIABILITY FOR SMALL TO MEDIUM SIZE ORGANIC RANKINE CYCLE POWER GENERATORS. A MAJOR PART OF THE RESEARCH WILL BE TO DEVELOP A ZERO-GRAVITY PPM. A PPM HAS BEEN DEVELOPED THAT CIRCULATES FREON IN A TERRESTRIAL SOLAR HEATING SYSTEM. ALSO SOLAR RESEARCHERS AT THE LOS ALAMOS NATIONAL LABORATORY HAVE DEVELOPED A SIMILAR PPM. THE ZERO-GRAVITY PPM WILL USE FEATURES OF THE TERRESTRIAL PPMS ALREADY IN USE IN ADVANCED FREON PHASE-CHANGE SOLAR HEATING SYSTEMS.

* information listed above is at the time of submission.

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