A VUILLEUMIER HEAT PUMP DEMONSTRATOR (VHPD)

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 14440
Amount: $49,937.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Stirling Technology Company
2952 George Washington Way, Richland, WA, 99352
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 L. Barry Penswick
 Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
IN THIS PROJECT, A VUILLEUMIER HEAT PUMP DEMONSTRATOR (VHPD)THAT USES NO OZONE-DEPLETING MATERIALS AND HAS A SEASONAL EFFICIENCY COMPETITIVE WITH COMPARABLE CHLOROFLUOROCARBON (CFC) RANKINE HEAT PUMP TECHNOLOGIES IS BEING DEVELOPED. VHPD WILL MAKE USE OF THE PROVEN LONG-LIFE TECHNOLOGIES OF AN EXISTING KINEMATIC DRIVE MECHANISM AND AN INNOVATIVE METAL BELLOWS. THE BELLOWS SEALS THE CYCLE WORKING FLUID FROM THE OIL-LADEN GAS OF THE CRANKCASE. THE SUCCESSFUL APPLICATION OF HERMETIC-WELDED BELLOWS SEALS TO STIRLING CYCLE MACHINES HAS SOLVED THE FUNDAMENTALLY LIFE-LIMITING SLIDING SEAL PROBLEM EXHIBITED BY VIRTUALLY ALL STIRLING MACHINES TO DATE. PHASE I AIMS TO ACCOMPLISH THE FOLLOWING OBJECTIVES: 1) DEVELOPMENT OF A THERMODYNAMICALLY OPTIMIZED PROOF-OF-CONCEPT RESIDENTIAL VUILLEUMIER HEAT PUMP DESIGN, WITH A COOLING CAPACITY OF 3.5 TO 7 KW AT 95 DEGREES FAHRENHEIT AMBIENT TEMPERATURE AND A COMBINED COOLING AND HEATING COEFFICIENT OF PERFORMANCE (COP) COMPETITIVE WITH COMMERCIALLY AVAILABLE RANKINE HEAT PUMPS; (2) MODIFICATION OF AN EXISTING STIRLING CYCLE ANALYSIS CODE TO MODEL THE VUILLEUMIER CYCLE, TO ENABLE IN-DEPTH THERMODYNAMIC MODELINGAND OPTIMIZATION; (3) ANALYTICAL PREDICTIONS OF HOW COP AND LOSS MECHANISMS ARE AFFECTED BY HEAT EXCHANGER AND REGENERATOR TECHNOLOGIES, STROKE FREQUENCY LIMITATIONS OF WELDED METAL BELLOWS, AND HEATER HEAD MATERIAL; AND (4) A PERFORMANCE MAP OF VHPD OVER A REALISTIC TEMPERATURE RANGE.

* information listed above is at the time of submission.

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