16 results about "Stirling cycle" patented technology

The invention discloses a micro-channel plate cooler for a Stirling engine and a cooling method, and the micro-channel plate cooler for the Stirling engine comprises a cooling shell and a heat exchange core body; the whole heat exchange core body is of an annular columnar structure and is formed by stacking a plurality of gas guide plates and a plurality of heat dissipation plates and then conducting vacuum diffusion welding. Hot fluid enters the hot runner of the air guide plate through the flow guide groove, and cold fluid enters the cold runner of the heat dissipation plate through the water inlet; the hot fluid and the cold fluid exchange heat in the plurality of air guide plates and the plurality of heat dissipation plates; and the hot fluid is discharged from the heat exchange core body through the second airflow groove. According to the micro-channel plate type Stirling engine cooler, the design concept of the micro-channel plate type Stirling engine cooler is adopted, the air guide plates and the heat dissipation plates in the heat exchange core are alternately stacked, the heat exchange area of unit volume can be remarkably increased, the compactness of the cooler structure can be improved, the heat exchange power is improved, and the heat exchange efficiency is improved. And a technical method is provided for stable operation of a next-generation megawatt underwater platform efficient Stirling cycle power system.

The utility model provides a low-temperature Stirling cycle performance test platform which comprises a low-temperature Stirling heat engine and further comprises a heat preservation barrel, hot water with a preset amount of temperature is contained in the heat preservation barrel, a bearing table is arranged in the heat preservation barrel in an up-down sliding mode, and the low-temperature Stirling heat engine is placed on the bearing table. The measuring module comprises a pressure intensity sensor, and the pressure intensity sensor is arranged on an exhaust port of an air cylinder of the low-temperature Stirling heat engine in a threaded connection mode; the displacement sensor is arranged on the heat preservation barrel through a fixing support and located above the low-temperature Stirling heat engine, and an acquisition window of the displacement sensor points to the surface of the upper end of a piston of the low-temperature Stirling heat engine; the temperature sensor is arranged on the heat preservation barrel through a fixing support, and an acquisition head of the temperature sensor is located in the heat preservation barrel.

The paper presents an invention regarding a SPM smart power module, intended for the creation of distributed, safe and efficient energy networks. An elementary module is composed of an innovative Carnot Battery, with high power density, consisting of a heat engine / heat pump whose working agent (gas or vapor) goes through a Carnot / Ericsson / Stirling cycle and which transfers thermal energy between two accumulators with different temperatures. In supply mode, the cycle is run in the direct direction and supplies mechanical / electrical energy, and in charging mode, the heat pump receives energy from the outside (from the network or from renewable sources), and the cycle is run in the opposite direction, transferring thermal energy from the cold reservoir to the hot reservoir. The maximum efficiency of the battery is ensured by at least two isothermalizers, similar to the one described in PCT / R02023 / 050009. Through a system of tanks, heat exchangers, circulation pumps, solenoid valves and pipes, the elementary module can receive a series of extensions, both on the thermal energy capture and distribution side. An intelligent processor collects signals from the SPM system, from a dispatcher, from the Internet, etc, processes them, then sends commands to the motors that actuate the solid pistons of the isothermalizers, the flow regulators of the liquid pistons and of the cooling systems, the solenoid valves, the circulation pumps, in such a way as to ensure the maximum exergetic and economic efficiency of the module, the flattening of load peaks, the maximum safety, the maximum utilization coefficient of all components. Any energy production unit and any consumer can be included in a smart module that ensures the storage, then the supply of the entire energy offers, ensuring consumers a safe, uninterrupted supply.

One aspect of the invention relates to a regulation system (100) comprising: a microelectromechanical system (200) called "MEMS", comprising a base (210); at least one thermal micromachine (300) configured to operate according to a Stirling cycle, comprising: an expansion volume (310) delimited in part by a first deformable membrane (130); a rear volume (330) separated from the expansion volume (310) by the first deformable membrane (130); the base (210) of the MEMS (200) delimiting in part the rear volume (330). Figure to be published with the abstract: Figure 1

One aspect of the invention relates to a regulation system (100) comprising: - a micro-electro-mechanical system (200) or "MEMS", comprising a base (210); - at least one thermal micromachine (300) configured to operate according to a Stirling cycle, comprising: - an expansion volume (310) delimited in part by a first deformable membrane (130); - a rear volume (330) separated from the expansion volume (310) by means of the first deformable membrane (130); wherein the base (210) of the MEMS (200) partially delimits the rear volume (330).

The paper presents an invention regarding a SPM smart power module, intended for the creation of distributed, safe and efficient energy networks. An elementary module is composed of an innovative Carnot Battery, with high power density, consisting of a heat engine / heat pump whose working agent (gas or vapor) goes through a Carnot / Ericsson / Stirling cycle and which transfers thermal energy between two accumulators with different temperatures. In supply mode, the cycle is run in the direct direction and supplies mechanical / electrical energy, and in charging mode, the heat pump receives energy from the outside (from the network or from renewable sources), and the cycle is run in the opposite direction, transferring thermal energy from the cold reservoir to the hot reservoir. The maximum efficiency of the battery is ensured by at least two isothermalizers, similar to the one described in PCT / R02023 / 050009. Through a system of tanks, heat exchangers, circulation pumps, solenoid valves and pipes, the elementary module can receive a series of extensions, both on the thermal energy capture and distribution side. An intelligent processor collects signals from the SPM system, from a dispatcher, from the Internet, etc, processes them, then sends commands to the motors that actuate the solid pistons of the isothermalizers, the flow regulators of the liquid pistons and of the cooling systems, the solenoid valves, the circulation pumps, in such a way as to ensure the maximum exergetic and economic efficiency of the module, the flattening of load peaks, the maximum safety, the maximum utilization coefficient of all components. Any energy production unit and any consumer can be included in a smart module that ensures the storage, then the supply of the entire energy offers, ensuring consumers a safe, uninterrupted supply.

In one aspect the invention provides a Stirling cycle machine including a chamber containing a working fluid and defining a terminal end displaced from a thermal transfer zone, and a displacer shuttle free to reciprocate within the chamber towards and away from the terminal end of the chamber. Also provided is a drive piston with an end linked to a mechanical or electrical drive configured to reciprocate the drive piston towards and away from the terminal end of the chamber, the displacer shuttle being at least partly located inside the drive piston with the drive piston being free to move axially around and relative to the displacer shuttle. At least one switch magnet is engaged with the drive piston whereby motion of a magnet mounted to the displacer shuttle through the switch magnet forces the displacer shuttle to move in the opposite direction of travel to the drive piston.

To provide a carbon dioxide recovery system that highly efficiently enables separation, recovery and liquefaction storage of carbon dioxide by using a simple and compact configuration.SOLUTION: A carbon dioxide recovery system includes: a separation recovery device 2 for selectively separating and recovering carbon dioxide from material gas containing carbon dioxide; and a liquefaction storage device 3 that liquefies and stores in a container 36 the carbon dioxide separated and recovered by the separation recovery device 2. The liquefaction storage device 3 includes a Stirling refrigerator 24 that cools and liquefies the carbon dioxide separated and recovered by the separation recovery device 2. Due to this configuration, without using an expensive multistage compression type high pressure compressor that compresses carbon dioxide to high pressure and complicated and expensive multistage and multisource-type refrigerators for cooling to a low temperature, etc., carbon dioxide is efficiently separated and recovered from material gas and the separated and recovered carbon dioxide can be highly efficiently liquefied and stored by using a simple device configuration using the Stirling cycle enabling sophisticated low temperature cooling.SELECTED DRAWING: Figure 1

The application provides a Stirling engine unit and a Stirling engine, wherein the Stirling engine unit comprises: a falling film evaporator, which has a liquid pool inside, the liquid pool is filled with active liquid, and the active liquid can change phase between liquid and gas; a regenerator, which is arranged on the falling film evaporator and communicates with the falling film evaporator, the regenerator is filled with the active liquid, and the gas flow channel of the regenerator is in a flow-through state; and a cooler, which is arranged on the regenerator and communicates with the regenerator; wherein the falling film evaporator, the regenerator and the cooler are filled with basic gas, and the basic gas and the active liquid perform evaporation Stirling cycle in the regenerator. The Stirling engine unit and the Stirling engine provided by the application aim to solve the problem that the traditional evaporation Stirling engine cannot operate stably.

According to the double-acting wobble plate Stirling engine, periodic swinging of a wobble plate is achieved through a plurality of air cylinders distributed in a circumferential array mode and a nutation transmission mechanism, and working medium gas distribution and power output are synchronously completed. The expansion cavities and the compression cavities of the adjacent air cylinders are communicated through heat regenerators, and the phase difference of the air cylinders is set to be 360 degrees / N, so that the volume change conforms to the volume phase relation of Stirling circulation; the device has the advantages of high volume power, low vibration noise, high multifunctional expansibility and the like.

A Stirling machine including: a heat exchanger; an expansion chamber; and a compression chamber, in which the Stirling machine is configured to perform a Stirling cycle to convert heat into mechanical power, a heater of the heat exchanger includes a first flow channel configured to allow a working fluid to flow therethrough, and a second flow channel configured to allow a first fluid for exchanging heat with the working fluid to flow therethrough, a fluid introduction chamber for introducing the first fluid into the second flow channel is provided on an outer side of the expansion chamber, and a partition wall between the expansion chamber and the fluid introduction chamber is provided with a plurality of grooves on an expansion chamber side and / or a fluid introduction chamber side.

A stirling cycle machine includes a thermal energy exchange apparatus including a first side plate having a plurality of first side pins extending therefrom and a second side plate having a plurality of second side pins extending toward the plurality of first side pins. A regenerator / displacer is positioned between the first side plate and the second side plate. The regenerator / displacer includes a plurality of pin openings, each surrounding a first side pin and a corresponding second side pin. The regenerator / displacer is configured to be driven in a first direction toward the first side plate and in a second direction toward the second side plate. The motion of the regenerator / displacer drives displacement of a working fluid in flow communication with the regenerator / displacer, the first side pins and the second side pins, to urge a thermal energy exchange between the first side pins and the second side pins via the working fluid.

The present invention discloses an expansion engine that, by means of a cycle similar to the Carnot cycle, converts thermal energy in general, and solar energy in particular, so as to transform the heat from a hot source and a cold source into mechanical work and subsequently into electrical energy. There is no economically viable means in the prior art for converting heat resulting from small temperature differences into work. This applies both to systems based on the Rankine cycle and to those based on the Stirling cycle. The present invention generates useful energy from an inexhaustible source such as the sun, using an abundant resource such as water, in a closed circuit. When applied to the utilization of solar energy, the expansion engine has the notable advantage of using virtually the entire spectrum of solar radiation, from infrared and visible light to ultraviolet, and not just a fraction of the visible spectrum, as is the case with photovoltaic panels. The invention is aimed at the production of energy from vast heat sources resulting from small temperature differences, such as those available in geothermal sources, from the temperature difference between surface water and deep-sea water, or from water heated by solar thermal radiation. The present invention enables the production of energy at the required locations and in the required amounts, thereby eliminating the need for electrical distribution networks. The present invention encompasses a system for storing large amounts of energy.

The invention provides a thermal state conversion device, a control method, a conversion system and a coupling system, and the device comprises a state conversion container unit which is internally provided with two conversion spaces with adjustable volumes and is used for accommodating and transferring a working fluid; the fluid control unit is used for controlling inflow and / or outflow of the working fluid of the corresponding conversion space; the energy exchange unit is coupled between the two conversion spaces and is used for performing energy exchange on the working fluid when the working fluid is transferred between the conversion spaces; and the system control unit is configured to cooperatively control the volume change of the state conversion container unit, the opening and closing of the fluid control unit and the energy exchange process of the energy exchange unit, so that the preset thermal state parameter change is realized when the working fluid is transferred between the conversion spaces. A continuous isovolumetric process is discretized into a plurality of controllable unit processes, and a direct thermal coupling technology is adopted, so that high-efficiency operation of approximate ideal Stirling cycle is realized under an open cycle frame.

The utility model relates to the technical field of high and low temperature devices, and solves the problem that deep hypothermia and high temperature test or high and low temperature rapid temperature shock needs to be carried out on a device or some other test piece. The problems that the low temperature of a common high-low temperature test box can only reach about-100 DEG C, liquid nitrogen needs to be used when high-low temperature rapid temperature shock needs to be carried out, liquid nitrogen filling is troublesome, and the maintenance cost is high are solved. The high and low temperature device comprises a box body, a top plate is arranged at the top of the box body, a through groove is formed in the middle of the surface of the top plate, a connecting pipe is arranged in the through groove, a Dewar is arranged at the top of the connecting pipe, and a control screen is arranged on one side of the surface of the box body. And a switch is arranged on the side adjacent to the control screen, a circulating device is arranged in the box body and comprises a control panel fixedly installed on the other side of the surface of the box body, and a cold and hot all-in-one machine is fixedly installed in the box body.