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Title: Solar-powered turbocompressor heat pump system

Abstract

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 compressormore » 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.« less

Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
6219697
Application Number:
ON: DE83013173
Assignee:
EDB-83-110309
DOE Contract Number:  
AC03-77CS34510
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Landerman, A.M., Biancardi, F.R., Melikian, G., Meader, M.D., Kepler, C.E., Anderson, T.J., and Sitler, J.W. Solar-powered turbocompressor heat pump system. United States: N. p., 1982. Web.
Landerman, A.M., Biancardi, F.R., Melikian, G., Meader, M.D., Kepler, C.E., Anderson, T.J., & Sitler, J.W. Solar-powered turbocompressor heat pump system. United States.
Landerman, A.M., Biancardi, F.R., Melikian, G., Meader, M.D., Kepler, C.E., Anderson, T.J., and Sitler, J.W. Thu . "Solar-powered turbocompressor heat pump system". United States.
@article{osti_6219697,
title = {Solar-powered turbocompressor heat pump system},
author = {Landerman, A.M. and Biancardi, F.R. and Melikian, G. and Meader, M.D. and Kepler, C.E. and Anderson, T.J. and Sitler, J.W.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {8}
}