6 results about "Carnot cycle" patented technology

The application discloses a kind of high-efficiency power generation devices of air-breathing hypersonic aircraft, including being arranged in the reformer of air-breathing hypersonic aircraft and SOFC system, air inlet hole is equipped on the wall of inlet duct, and air inlet hole is communicated with the oxidant inlet of SOFC system;Supersonic combustion chamber is equipped with fuel inlet hole and fuel outlet hole on the wall, fuel inlet hole is connected with the air inlet end of reformer, the air outlet end of reformer is communicated with the fuel inlet of SOFC system, and the product outlet of SOFC system is communicated with fuel outlet hole.The application is applied to the field of aerospace energy generation technology, chemical energy is directly converted into electric energy by electrochemical reaction process using the feature that SOFC does not need to take force, not limited by Carnot cycle, thereby improve energy conversion efficiency, not only reduce pollutant emission, but also meet the demand of high electric power ratio and long time online power supply flight task, can be effectively applied to air-breathing hypersonic aircraft.

The invention discloses a heat pump and solar energy coupled marine ranch culture hotbed device. The invention relates to the technical field of marine ranch culture hotbeds. The system comprises a culture pond 4, a hotbed pipe assembly 3 mounted in the culture pond 4, a heat source assembly 1 for inputting heat energy to the hotbed pipe assembly 3, and a relay assembly 2 for providing a flowing medium for transferring the heat energy, the hotbed pipe assembly 3 is spirally arranged in the culture pond 4 in a rectangular-ambulatory-plane shape. Efficient photo-thermal conversion of the solar heat collector is achieved through a parabolic reflector and a selective absorbing coating, conversion from low-grade heat energy to high-grade heat energy is achieved through the heat pump unit through reverse Carnot cycle, and intelligent distribution of heat energy flow is achieved through a three-way proportional regulating valve. The relay assembly adopts a closed circulation system structure, a liquid tank reduces heat loss through a double-layer heat preservation structure, a spiral spoiler is arranged in a circulating water pipe to enhance turbulent flow heat exchange, flowing media are dynamically matched according to environmental conditions (such as freezing prevention of ethylene glycol water solution and high temperature resistance of heat conduction oil), and the heat energy transmission efficiency is ensured.

The invention discloses a vacuum heat insulation efficient energy utilization device for simulating combustion membrane catalytic reversible reaction and light surging coupling, and belongs to the technical field of efficient energy conversion. The device is of a concentric / coaxial nested totally-closed structure and is sequentially provided with a core membrane catalytic reversible reaction layer, a light surge driving layer, a first-stage vacuum heat insulating layer, a total energy recovery layer, a total reflection radiation shielding layer, a second-stage vacuum sealing layer, a matched wavelength adjustable light incident window, an ion / product selective separation membrane and an energy output interface from inside to outside. The core membrane catalyst layer divides traditional combustion into three-step reversible element reaction, the light surge driving layer achieves directional driving through photon excitation photon-generated carriers and local photo-thermal, the double-layer vacuum heat insulation layer is matched with the high-reflection shielding layer to achieve heat conduction, convection and radiation triple loss blocking, the total energy recovery layer conducts reverse conversion on trace leakage energy and conducts backflow, and the total energy recovery layer is matched with the high-reflection shielding layer. And energy closed loop is realized. The device breaks the Carnot cycle limitation, has the theoretical energy utilization efficiency of 100%, the engineering actual efficiency of more than or equal to 99.9%, is flame-free in reaction, zero in pollutant emission, flexible in energy output form, compact in structure and high in environmental adaptability, can be widely applied to aerospace propulsion, aviation power, micro-nano energy chips, distributed power generation and other scenes, and has wide application prospects. And the method has obvious energy utilization value and industrial application prospect.

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.

A Carnot cycle battery energy storage system based on supercritical carbon dioxide comprises a heat pump cycle, a heat engine cycle, a high-temperature heat storage system, a low-temperature heat storage system and a working medium supplementing and adjusting system. During energy storage, the heat pump cycle converts electric energy into temperature difference potential energy, and heat in the low-temperature heat source is pumped to the high-temperature heat source; the high-temperature heat storage system is used for storing heat transferred from the heat pump cycle; the low-temperature heat storage system releases the stored low-temperature heat to the heat pump cycle; during energy release, the heat engine cycle converts temperature difference potential energy into electric energy, absorbs heat from the high-temperature heat source and then releases the heat to the low-temperature heat source; the high-temperature heat storage system releases the stored high-temperature heat to the heat pump cycle; the low-temperature heat storage system is used for storing heat released by the heat pump cycle; the working medium supplement adjusting system is used for maintaining stable pressure and flow of the carbon dioxide working medium in the system operation process. In the working temperature difference range of 600 DEG C, the system can achieve high circulation efficiency.

The present application relates to HVAC system intelligent control and fault diagnosis technical field, specifically to a kind of refrigeration system energy consumption optimization method based on machine learning;Contain ideal benchmark construction, virtual fault simulation, residual projection identification and closed-loop correction steps;System is through the collection real-time load and environmental data, based on inverse Carnot cycle constructs ideal state vector;Its core is to generate virtual fault state vector using Taylor series expansion, calculate the projection similarity of real-time characteristic residual and virtual characteristic residual, to accurately identify fault;When identifying specific fault, automatically adjust control parameters or alarm;The present application constructs thermodynamic ideal benchmark to replace traditional historical data modeling, effectively decouples environmental variables, avoids misjudging equipment aging as normal, ensures the purity and accuracy of benchmark.