A system includes at least one capacitor comprising a dielectric material having a Curie temperature, each capacitor exhibiting an increased capacitance at a temperature below the Curie temperature and exhibiting a decreased capacitance at a temperature above the Curie temperature, a liquid source positioned adjacent to the capacitor and having a temperature above the Curie temperature, and means for exposing the capacitor to the liquid source for a predetermined time so the temperature of the dielectric material exceeds the Curie temperature, at which point the capacitance decreases. A voltage storage is connected to the capacitors to capture the increased voltage discharged from the capacitors. The capacitors are then removed from the liquid source and cooled. The capacitors may iteratively be recharged, exposed to the liquid source until their temperature exceeds the Curie temperature, connected to the voltage storage, removed from the liquid source, and cooled.

A system includes at least one capacitor comprising a dielectric material having a Curie temperature, each capacitor exhibiting an increased capacitance at a temperature below the Curie temperature and exhibiting a decreased capacitance at a temperature above the Curie temperature, a liquid source positioned adjacent to the capacitor and having a temperature above the Curie temperature, and means for exposing the capacitor to the liquid source for a predetermined time so the temperature of the dielectric material exceeds the Curie temperature, at which point the capacitance decreases. A voltage storage is connected to the capacitors to capture the increased voltage discharged from the capacitors. The capacitors are then removed from the liquid source and cooled. The capacitors may iteratively be recharged, exposed to the liquid source until their temperature exceeds the Curie temperature, connected to the voltage storage, removed from the liquid source, and cooled.

A method and a device for heat recovery on a vapour compression refrigeration system allowing the produce hot water, includes at least a first piping closed refrigerating circuit in which a refrigerant fluid circulates, a compressor, an evaporator, an expansion valve, a condenser and/or a heat recovery unit including a water inlet and a water outlet respectively connected to a second piping circuit including a circulating pump. At least one physical unit of the refrigerant fluid and/or water of the second piping circuit is determined. When the physical unit is lower than a predetermined threshold, condensing temperature is increased, and when said physical unit is greater than said predetermined threshold, condensing temperature is decreased to a minimum value.

A method and a device for heat recovery on a vapour compression refrigeration system allowing the produce hot water, includes at least a first piping closed refrigerating circuit in which a refrigerant fluid circulates, a compressor, an evaporator, an expansion valve, a condenser and/or a heat recovery unit including a water inlet and a water outlet respectively connected to a second piping circuit including a circulating pump. At least one physical unit of the refrigerant fluid and/or water of the second piping circuit is determined. When the physical unit is lower than a predetermined threshold, condensing temperature is increased, and when said physical unit is greater than said predetermined threshold, condensing temperature is decreased to a minimum value.

This invention provides a thermal energy battery having an insulated tank contains a multitude of densely packed plastic tubes filled with a phase-change material (PCM, such as ice) that changes from solid to liquid and vice-versa. Energy is stored when the PCM transitions from liquid to solid form, and released when the PCM transitions back from solid to liquid form. The tubes are arranged vertically, span the height of a well-insulated tank, and are immersed in heat transfer fluid (HTF) contained within the tank. The HTF is an aqueous solution with a freezing point temperature below the freezing point temperature of the chosen PCM. The HTF remains in liquid form at all times during the operation of the battery. Diffusers located allow the HTF to be extracted uniformly from the tank, pumped and cooled by a liquid chiller situated outside the tank and then and inserted back into the tank.

This invention provides a thermal energy battery having an insulated tank contains a multitude of densely packed plastic tubes filled with a phase-change material (PCM, such as ice) that changes from solid to liquid and vice-versa. Energy is stored when the PCM transitions from liquid to solid form, and released when the PCM transitions back from solid to liquid form. The tubes are arranged vertically, span the height of a well-insulated tank, and are immersed in heat transfer fluid (HTF) contained within the tank. The HTF is an aqueous solution with a freezing point temperature below the freezing point temperature of the chosen PCM. The HTF remains in liquid form at all times during the operation of the battery. Diffusers located allow the HTF to be extracted uniformly from the tank, pumped and cooled by a liquid chiller situated outside the tank and then and inserted back into the tank.

The invention relates to an in-tank raw milk monitoring system and method used in the agriculture and animal husbandry sector, in the field of food production, especially in the cooling and storage tanks in raw milk collection centers, which allows remote and digital measurement of milk quality determining values such as temperature and pH and milk quantity, storage and transmission of these measurement values to remote computers, remote and real-time 24/7 monitoring of tanks, and all these operations to be carried out with minimal need for personnel intervention, which is compatible with industrial computer systems and cloud systems, sends mobile sms and e-mail notifications, can be managed by artificial intelligence thanks to the software it contains, creates a suitable ground for data mining and reporting, and saves labor, energy and time accordingly.

A milking system configured to milk animals includes a milking station, a first milk tank, and a second milk tank, a controllable valve arrangement configured to open or close a first branch and to open or close a second branch of a milk transport conduit, to control to which tank that milk is transported, and a control device configured to control the controllable valve arrangement. The milking system includes a sensor configured to sense a property of milk present in the first milk tank or of milk flowing towards the first milk tank, or a sensor configured to sense a property of a cooling arrangement for controlling the temperature of the milk in the first milk tank. The control device is configured to control the controllable valve arrangement based on information from the sensor.

A milking system configured to milk animals includes a milking station, a first milk tank, and a second milk tank, a controllable valve arrangement configured to open or close a first branch and to open or close a second branch of a milk transport conduit, to control to which tank that milk is transported, and a control device configured to control the controllable valve arrangement. The milking system includes a sensor configured to sense a property of milk present in the first milk tank or of milk flowing towards the first milk tank, or a sensor configured to sense a property of a cooling arrangement for controlling the temperature of the milk in the first milk tank. The control device is configured to control the controllable valve arrangement based on information from the sensor.