Power and ejector cooling unit
AssigneeHamilton Sundstrand Corporation
InventorsMalcolm MacDonald, Abbas A. Alahyari
Life of this patent
Estimating the term…
Abstract
Power and cooling systems including a drive system, a power generation unit, and a cooled fluid generation unit. A primary working fluid that is expanded within a turbine of the drive system and compressed within compressors in a closed-loop cycle. The power generation unit includes a generator and a heat source configured to heat the primary working fluid prior to injection into the turbine. T cooled fluid generation unit includes an ejector downstream of the compressors and a separator arranged downstream of the ejector and configured to separate liquid and gaseous portions of the primary working fluid. The gaseous portion is directed to the compressors and the liquid portion is directed to an evaporator heat exchanger to generate cooled fluid.
Claims20
A power and cooling system comprising
- a drive system having a drive shaft with a turbine, a first compressor, and a second compressor each operably coupled to the drive shaft;
- a power generation unit defining a power generation flow path of a primary working fluid that is expanded within the turbine of the drive system and compressed within the first compressor and the second compressor in a closed-loop cycle, the power generation unit comprising:
- a generator configured to generate electrical power, the generator driven by the drive shaft of the drive system;
- and
- a heat source configured to heat the primary working fluid prior to injection into the turbine;
- and
- a cooled fluid generation unit defining a cooled fluid flow path of a portion of the primary working fluid that is extracted from the second compressor and compressed within the first compressor, the cooled fluid generation unit comprising:
- an ejector downstream of the second compressor along the cooled fluid flow path;
- a separator arranged downstream of the ejector and configured to separate liquid and gaseous portions of the primary working fluid, wherein the gaseous portion is directed to the first compressor and the liquid portion is directed to an evaporator heat exchanger to generate a cooled fluid, wherein the primary working fluid is directed to the ejector after passing through the evaporator heat exchanger;
- and
- a condenser heat exchanger arranged between the second compressor and the ejector along the cooled fluid flow path, wherein the condenser heat exchanger receives ambient air as a secondary working fluid to cool the primary working fluid prior to entry into the ejector.
A power and cooling system comprising
- a drive system having a drive shaft with a turbine, a first compressor, and a second compressor each operably coupled to the drive shaft;
- a power generation unit defining a power generation flow path of a primary working fluid that is expanded within the turbine of the drive system and compressed within the first compressor and the second compressor in a closed-loop cycle, the power generation unit comprising:
- a generator configured to generate electrical power, the generator driven by the drive shaft of the drive system;
- and
- a heat source configured to heat the primary working fluid prior to injection into the turbine;
- a cooled fluid generation unit defining a cooled fluid flow path of a portion of the primary working fluid that is extracted from the second compressor and compressed within the first compressor, the cooled fluid generation unit comprising:
- an ejector downstream of the second compressor along the cooled fluid flow path;
- and
- a separator arranged downstream of the ejector and configured to separate liquid and gaseous portions of the primary working fluid, wherein the gaseous portion is directed to the first compressor and the liquid portion is directed to an evaporator heat exchanger to generate a cooled fluid, wherein the primary working fluid is directed to the ejector after passing through the evaporator heat exchanger;
- and
- an additional compressor arranged between the first compressor and the second compressor along the drive shaft, wherein the primary working fluid of the cooled fluid generation unit is merged with the primary working fluid of the power generation unit within the additional compressor.
Dependencies are inferred from the claim text.