Power-saver apparatus modifying the physics of the closed-loop vapor-circuit compression-refrigeration cycle by scavenging the kinetic energy of the hot compressed liquid-vapor with at least one micro-turbine driven permanent-magnet power-generator inserted into said loop between the compressor and the condenser of said circuit, whereas said cycle repeats indefinitely in closed-loop vapor-pipe-line of one or more refrigeration stages, each having at least one of the following devices in the following sequence: a) electric-motor-driven-compressor, b) micro-turbine-power-generator, c) condenser-radiator, d) throttle and e) evaporator-radiator, whereas said generator is sealed in said pipe-line and generates low-voltage direct-current, which is converted to high-voltage alternating-current, which, using an inverter, is utilized to offset the power consumption of said refrigerator by feeding the generated power back to the grid, which powers said compressor, and wherein the refrigerated space comprising the said evaporator is separated from the rest of said devices and their interconnecting vapor-pipe-lines by heat insulation.

A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a first ejector to receive a first gas and increase pressure of the first gas to form the second fluid at the second pressure. The first ejector is further to provide the second fluid at the second pressure to the PX.

A heating, cooling, and power device includes a shaft and an expander coupled to the shaft to rotate the shaft. A first conduit is coupled to the expander and configured to transport a working fluid. A heater is coupled through the first conduit to the expander. A heat pump is coupled to the shaft. An electric machine is coupled to the shaft to produce electricity or mechanical shaft power. A recuperator includes a second conduit coupled between the expander and recuperator. The heat pump includes a first heat exchanger including a second conduit coupled between the expander and the first heat exchanger. An expansion device includes a third conduit coupled between the first heat exchanger and the expansion device. A second heat exchanger includes a fourth conduit coupled between the expansion device and second heat exchanger. A compressor is coupled to the shaft.

Improvements to a water generation system is disclosed. The atmosphere freezer to be made from modified, redesigned and rearranged components commonly used in the cryogenics and refrigeration industry but with the focus on generating maximum water from the coil and or panel systems installed inside of a modified cargo container. The atmosphere freezer is targeted to assist Governments, States and Municipal water districts, aqueducts, U.S. Military, waste water reclamation facilities and reservoir, lake and river municipal managers. Applications can also be used in agriculture and large commercial and or private facilities. This system can also be used in disaster and emergency relief, new or existing housing track developments, solar farms, golf courses, hotels, hospitals, large commercial buildings and universities. Each of these applications can have units designed to meet their needs based on the available space for the container(s) and or their need for water.

A heating, cooling, and power device includes a shaft and an expander coupled to the shaft to rotate the shaft. A first conduit is coupled to the expander and configured to transport a working fluid. A heater is coupled through the first conduit to the expander. A heat pump is coupled to the shaft. An electric machine is coupled to the shaft to produce electricity or mechanical shaft power. A recuperator includes a second conduit coupled between the expander and recuperator. The heat pump includes a first heat exchanger including a second conduit coupled between the expander and the first heat exchanger. An expansion device includes a third conduit coupled between the first heat exchanger and the expansion device. A second heat exchanger includes a fourth conduit coupled between the expansion device and second heat exchanger. A compressor is coupled to the shaft.

The present invention provides an apparatus for utilizing waste heat to power a reconfigurable thermodynamic cycle that can be used to selectively cool or heat an environmentally controlled space, such as a room, building, or vehicle. The present invention also integrates an electric machine, which may operate as a motor or generator, or both, and an additional prime mover, such as an internal combustion engine. Different combinations of these components are preferable for different applications. The system provides a design which reasonably balances the need to maximize efficiency, while also keeping the design cost effective.

A system includes a pressure exchanger (PX) and a condenser. An outlet of the condenser is fluidly coupled to a first inlet of the PX. The system further includes a generator assembly configured to be conditionally coupled to the PX. Coupling the generator assembly to the PX causes a turbine to convert rotational energy of the PX to electrical energy.

An energy recovery apparatus, for use in a refrigeration system, comprises a first nozzle, a second nozzle, a turbine, a discharge port, and a housing. The first nozzle comprises a first passageway which is adapted to constitute a portion of a refrigerant flow path when the refrigeration system is operated in a first mode. The second nozzle comprises a second conduit which is adapted to constitute a portion of the flow path when the refrigeration system is operated in a second mode. The turbine is positioned to be driven by refrigerant discharged from either or both of the first and second passageways. The discharge port is adapted to permit refrigerant to flow out of the energy recovery apparatus. The discharge port of the energy recovery apparatus is downstream of the turbine. The turbine is within the housing.

According to one embodiment, an expander includes a piston provided reciprocatively in a first direction in a cylinder, a crankshaft, an XY-separation crank mechanism provided between the piston and the crankshaft, which converts a reciprocating motion of the piston and a rotary motion of the crankshaft into one another, a cylinder head including an intake port and an outlet port, a suction valve which opens/closes the intake port, a discharge valve which opens/closes the outlet port, an intake-side valve mechanism which opens/closes the suction valve and an outlet-side valve mechanism which opens/closes the discharge valve. At least one of the intake-side and outlet-side valve mechanisms includes an XY separation drive mechanism.

The invention relates to a method for cooling a superconducting cable (1) using a coolant containing or consisting of liquid nitrogen, wherein at least a part of the coolant is subjected to a subcooling step and thereafter brought into thermal contact with the superconducting cable (1) in a cooling cycle, wherein said subcooling step is at least in part performed using a refrigerant provided in a Brayton process in which at least a part of the refrigerant is cooled and heated in a main heat exchanger (11). According to the present invention, a part of the coolant is withdrawn from the cooling cycle and heated in the same main heat exchanger (11) in which at least a part of the refrigerant is cooled and heated in the Brayton process. A corresponding device and a corresponding system are also part of the present invention.