Solar-powered turbocompressor heat pump system

Patent · Thu Aug 12 00:00:00 EDT 1982

OSTI ID:6219697

Landerman, A M; Biancardi, F R; Melikian, G; Meader, M D; Kepler, C E; Anderson, T J; Sitler, J W

The turbocompressor comprises a power turbine and a compressor turbine having respective rotors and on a common shaft, rotatably supported by bearings. A first working fluid is supplied by a power loop and is expanded in the turbine. A second working fluid is compressed in the turbine and is circulated in a heat pump loop. A lubricant is mixed with the second working fluid but is excluded from the first working fluid. The bearings are cooled and lubricated by a system which circulates the second working fluid and the intermixed lubricant through the bearings. Such system includes a pump, a thermostatic expansion valve for expanding the working fluid into the space between the bearings, and a return conduit system for withdrawing the expanded working fluid after it passes through the bearings and for returning the working fluid to the evaporator. A shaft seal excludes the lubricant from the power turbine. The power loop includes a float operable by liquid working fluid in the condenser for controlling a recirculation valve so as to maintain a minimum liquid level in the condenser, while causing a feed pump to pump most of the working fluid into the vapor generator. The heat pump compressor loop includes a float in the condenser for operating and expansion valve to maintain a minimum liquid working fluid level in the condenser while causing most of the working fluid to be expanded into the evaporator.

• DOE Contract Number: AC03-77CS34510
• Assignee: EDB-83-110309
• Application Number: ON: DE83013173
• OSTI ID: 6219697
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
HEAT PUMPS
SOLAR HEAT ENGINES
COMPRESSORS
RANKINE CYCLE
SOLAR AIR CONDITIONING
SOLAR SPACE HEATING
TURBINES
VAPOR COMPRESSION REFRIGERATION CYCLE
WORKING FLUIDS
AIR CONDITIONING
ENGINES
FLUIDS
HEAT ENGINES
HEATING
MACHINERY
SOLAR HEATING
SPACE HEATING
THERMODYNAMIC CYCLES
TURBOMACHINERY
140901* - Solar Thermal Utilization- Space Heating & Cooling