7531 results about "Cold storage" patented technology

Thermal energy derived from a low temperature heat source is stored in one reservoir above ambient temperature and in another reservoir below ambient temperature for use in driving an organic Rankine cycle engine to produce electricity. The organic Rankine cycle engine may utilize an organic working fluid that boils below or near ambient temperature. Solar energy may be used to power a heat pump or chiller that provides the hot and cold storage fluids stored in hot and cold reservoirs for use in the organic Rankine cycle engine.

The invention relates to a system for comprehensively utilizing LNG cold energy for power generation and cold supply. The system comprises a LNG supercharging gasification direct expansion power generation system, a mixed working medium Rankine cycle power generation system, a liquid ammonia refrigeration house cold supply system and an ethylene glycol ice storage bath air conditioner cold supplycirculation system. The cold energy released in the LNG gasification process is utilized; high-grade electric energy is generated through LNG supercharging gasification direct expansion power generation and mixed working medium Rankine cycle power generation; cold is supplied to a refrigeration house through the cold energy released in the LNG gasification process for ammonia recycling; and cold is supplied to an air conditioner through the cold energy released in the LNG gasification process for ethylene glycol ice storage bath recycling. By means of the system, gradient utilization of the LNG cold energy is achieved, and the cold energy utilization efficiency is high.

A system and method for transaction bitcoin is described. Bitcoin can be sent to an email address. No miner's fee is paid by a host computer system. Hot wallet functionality is provided that transfers values of some Bitcoin addresses to a vault for purposes of security. A private key of a Bitcoin address of the vault is split and distributed to keep the vault secure. Instant exchange allows for merchants and customers to lock in a local currency price. A vault has multiple email addresses to authorize a transfer of bitcoin out of the vault. User can opt to have private keys stored in locations that are under their control. A tip button rewards content creators for their efforts. A bitcoin exchange allows for users to set prices that they are willing to sell or buy bitcoin and execute such trades.

The present invention relates to a directly-expanded type solar heat pump air conditioning and water-heating system, the directly-expanded type solar heat pump and ice cold-storage air conditioner are combined organically, and it is mainly formed from solar heat collector/evaporator, compressor, condenser, electronic expansion valve, four-way reverse valve, heat water storage tank, hot water tank, air conditioner tail end cover and system control component. The solar heat collector/evaporator adopts the plate type heat collector which has no cover plate and whose bottom is heat insulated and whose surface is coated with solar spectrum absorbing material, and the energy storage device adopts a closed pressure-bearing heat storage water tank whose interior is equipped with high-effective heat exchange equipment which can store heat in winter and can store ice in summer.

This invention relates to an energy-saving central air conditioning system, which comprises cold and hot water source host, terminal device and the control system to adjust and monitor. The said control system processes according to the large amount of data collected to get the needed optimized status operation orders. It real-time adjusts the each part load of the system into cold storage or cold discharging modes and the said host works under the mode of cold storage and stops working in cold discharging mode.

Automated cold storage unit and systems for storing, monitoring, and maintaining a supply of temperature sensitive pharmaceutical and/or other products in compliance with regulatory requirements are provided. Such units contain an array of independently addressable holding locations for containers with product in one or more controlled temperature zones fitted with temperature sensors. The units include a reader to track product information and status. Product movement within the unit is performed by a computer-controlled robot. A user interface device, preferably in communication with an application service provider to provide remotely managed inventory management and other services, provides users with secure access to the contents of the unit and associated product data and information.

A portable cooler has at least three separate storage compartments that comprise at least one ice-cold storage compartment; at least one dry moderately cold storage compartment; and at least one dry non-cold storage compartment. A temperature gradient construction enables the user to proficiently store food and non-food items of varying water sensitivities and temperature needs. Typically, a wet cooling medium is added to the ice-cold storage compartment. Discrete thermal conduction pathways extend from the ice-cold storage compartment into the moderately cold storage compartment, cooling the moderately cold storage compartment. The less cold compartment and the non-cold compartment are completely dry of water. Each of the compartments has its own lid enabling selective entry and thereby preventing temperature fluctuations and moister transfer when another compartment is accessed. The portable cooler has a plurality of foldable wheels on the base thereof to facilitate portability.

By using a core made of laminated sheets of inorganic fibers having a particular shape and composition as part of a vacuum heat insulator for a heat insulation box, a heat insulation box excellent in long-term heat insulating properties and productivity can be provided. The vacuum heat insulator can be shaped easily. Therefore, a vacuum heat insulator suitable for a required heat insulation portion can be produced easily and applied to a heat insulation box. This property can increase coverage of the vacuum heat insulator on the heat insulation box, thus improving heat insulating properties of the heat insulation box. This can improve heat insulating properties and productivity of a refrigerator, thermal storage box, cold storage box, or vending machine, and contribute to energy savings.

The invention relates to an air-cooling refrigerator control method. A refrigeration system of an air-cooling refrigerator comprises a compressor, a condenser, a freezing evaporator, a cold storage evaporator, a condensate fan, a freezing fan, a cold storage fan, a cold storage temperature sensor, a freezing temperature sensor, an environment temperature sensor and a controller, wherein the controller of the refrigerator controls the rotating speeds of the compressor, the condensate fan, the freezing fan and the cold storage fan according to the temperature of a cold storage chamber, the temperature of a freezing chamber and the temperature of the external environment detected by the cold storage temperature sensor, the freezing temperature sensor and the environment temperature sensor respectively. Due to the arrangement of the environment temperature sensor for measuring the temperature of the external environment on the refrigerator, the rotating speeds of the compressor, the condensate fan, the freezing fan and the cold storage fan can be adjusted simultaneously according to the temperature of the external environment and the temperature of each internal chamber, the refrigeration system is optimized, the temperature in the refrigerator can be controlled more accurately and quickly, and energy consumption and noise are reduced to the lowest level.

The invention relates to a high-heat-discharge-quantity refrigerating and heating temperature control system for a reaction kettle. The high-heat-discharge-quantity refrigerating and heating temperature control system comprises a reaction kettle, wherein one end of the reaction kettle is sequentially connected with a heating pipe, an electric proportioning regulating valve, a first cold storage tank and an evaporation heat exchanger through a fourth pipeline, the output end of the evaporation heat exchanger is sequentially connected with a first circulation pump, a first one-way valve, an expansion tank and an exhaust valve through a first pipeline, the exhaust valve is connected to the other end of the reaction kettle through a fifth pipeline, the two ends of the evaporation heat exchanger are connected with a refrigerating machine, the refrigerating machine is structurally characterized in that one end of the evaporation heat exchanger is sequentially connected in series with a gas-liquid separator, a compressor, an oil separator, a condenser, a drying filter, a second cold storage tank, an electromagnetic valve and an expansion valve through a third pipeline, the outer end of the expansion valve is connected with the other end of the evaporation heat exchanger through an eighth pipeline, the refrigerating machine is positioned between the electromagnetic valve and the second cold storage tank and is connected with the third pipeline through the second pipeline, and an electronic expansion valve is arranged on the second pipeline. The work reliability is good.

The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

A food storage system allows at least one warm item and one cool item, especially foods to be stored and transported together. A housing with a closable internal volume receives at least one container for the cool items and one container form the warm items. In each of these containers, cool items and warm items are paired with a appropriate phase change material that either absorbs heat or emits heat. The items and the phase change materials can be separately contained.

Exemplary embodiments are directed to a thermoelectric energy storage system (TEES) and method for converting electrical energy into thermal energy to be stored and converted back to electrical energy with an improved round-trip efficiency are disclosed. The TEES includes a working fluid circuit for circulating a working fluid through a first heat exchanger and a second heat exchanger, a thermal storage medium circuit for circulating a thermal storage medium, the thermal storage medium circuit having at least one hot storage tank coupled to a cold storage tank via the first heat exchanger. The arrangement maximizes the work performed by the cycle during charging and discharging for a given maximum pressure and maximum temperature of the working fluid.

In one embodiment, a cold storage system for biological samples has one or more freezers, each freezer having one or racks, each rack receiving one or more boxes, each box receiving one or more sample containers. In addition to the biological sample, each sample container has a unique passive RFID tag. Control electronics in each box energize reader coils to query individual RFID tags. Control electronics in each rack communicate with and provide power to the control electronics of each corresponding box, and control electronics in each freezer communicate with and provide power to the control electronics of each corresponding rack, and a host computer communicates with the control electronics in each freezer. In each instance, communication and power provisioning is implemented using magnetic inductive coupling. The system is able to determine the identity of each sample container in the system and maintain that information in a database.

The invention relates to a liquefied compressed air energy storage system with cold-storage liquid media. The liquefied compressed air energy storage system comprises compressor systems, a cold storage system, a heat storage system, a liquefying system and a turbine power generation system. During energy storage, the multistage compressor system is driven by renewable energy sources, so that compressed air is supercharged to exchange heat with a room-temperature cold-storage liquid medium, the cold quantity stored in the liquid medium is lowered to liquefying temperature, and the compressed air is liquefied through throttling; during energy releasing, the liquid air is supercharged to exchange heat with a high-temperature cold-storage liquid medium, the medium recycles cold energy to give to the liquefying process, and the air is warmed to be vaporized; room-temperature high-pressure air is input into a multi-stage turbine expander for acting, and a power generator is driven to output electric energy; the heat storage system reduces the power consumption of the next stage of compressor, and the stored heat is heated step by step before expansion to raise the intake air temperature; a cold-storage medium with a low freezing point and a high/low boiling point recycles the cold energy of the liquid air, the specific heat capacity of the liquid media is large, and the large-temperature-span heat exchange is realized. The liquefied compressed air energy storage system has the advantages of being simple in structure and stable in performance, can realize integration of energy storage and power generation, and can realize the large-scale grid-connection of renewable energy generation, therefore improving the capacity of a power grid accepting new energy power generation.

The invention relates to a control method for refrigerator, concretely, it relates to control method for a frequency variable refrigerator, the invention provides a method for time division work of freezing chamber and cold storage chamber in the process of temperature control, and through the cold quantity demands estimation, the frosting process includes the refrigerating process of the cold storage chamber. The variable frequency refrigerator includes: primary CPU, freezing chamber, cold storage chamber, temperature sensor, compressor, the invention introduces the concepts of temperature change rate and target approaching rate, the refrigerator can adjust the temperature change of the refrigerator according to the rate.

A cold-storage appliance comprises an open-topped insulating container defining an external surface, an insulating lid adapted to close the open top of the container, a cooling means adapted to cool the interior but not the exterior of the container, and a structure supporting the container, the lid and the cooling means. In accordance with the invention, the container is mounted to the structure for movement relative to the structure and the lid to open the container and afford access to its interior or to close the container, and at least a majority of the external surface of the container is exposed to ambient air when the container is closed by the lid.

The invention discloses a phase change cold storage material with double phase change points and a preparation method thereof. The phase change cold storage material with double phase change points is prepared from the following raw materials in percentage by weight: 0 to 60 percent of inorganic salts, 5 to 60 percent of organic phase change materials, 20 to 95 percent of de-ionized water, 0.1 to 2 percent of surfactants, 1 to 5 percent of thickening agents and 1 to 5 percent of nucleating agents. The phase change cold storage material provided by the invention has double phase change points; the temperature can be controlled between the double phase change point temperatures in the material distribution process; the freezing and cold storage effect is achieved; the proper unfreezing effect can also be achieved; in addition, the material has high phrase change latent heat enthalpy value (greater than 220kJ/kg); the more efficient and faster temperature reduction effect is achieved; in addition, the temperature can be permanently maintained in a specific temperature range.

This invention relates to energy technique field and especially to a multi-function distribution heat and electricity co-production system and method, which comprises the following: gas turbine, dual-purpose lithium brominate absorptive-type set, exhaust-heat boiler, heat exchanger, absorptive dehumidification device, cold storage device, heat storage device and compression set. The system comprehensively uses the multiple energies and resources to become a new system with input and output of multiple energies.