摘要:
The invention relates to a method for maintaining a desired temperature by means of a thermal accumulator (1) in a thermal container (2). According to the invention, a desired temperature in relation to the outer temperature is generated in the thermal container (2) during an active tempering phase. During another passive tempering phase, a thermal element is not activated. A temperature accumulator medium is also selected for the thermal accumulator (1), said medium changing state in the positive degree Celsius temperature range, thereby cooling the inner chamber. The invention also relates to a thermal accumulator.
摘要:
The invention concerns a heating and cooling system adapted to exchange thermal energy with a radiant surface (11), and comprising a first heat exchanger (20, 350) adapted to exchange thermal energy with said premises by means of a first coolant, a second heat exchanger (30) having at least one exchanging surface (32), a first circuit (35) circulating said coolant between said first heat exchanger and said second heat exchanger, and further comprising a plurality of Peltier-effect cells (250, 251, 252, 253, 254), each of said cells having a first-type so-called cold surface and a second-type so-called hot surface, the plurality of cold surfaces being in direct thermal contact with said exchanging surface, and the plurality of said hot surfaces being in direct thermal contact with first thermal energy dissipating means; and an electric supply (60) of said plurality of Peltier-effect cells.
摘要:
A system, apparatus, and method are provided for selectively actively and passively refrigerating one or more enclosures. The apparatus includes a primary heat sink (26) that defines at least one surface configured to receive thermal energy from a gas in the enclosure so that the enclosure is refrigerated. First (40) and second coolant heat sinks (50) thermally communicate with the primary heat sink (26) to remove thermal energy therefrom. For example, in a passive mode, a coolant is circulated through the first heat sink (40) to cool the primary heat sink (26). In an active mode, the coolant is circulated through the second coolant heat sink (50) and at least one heat pump (60) is operated to transfer thermal energy from the primary heat sink (26) to the coolant in the second coolant heat sink (50).
摘要:
Ice cube apparatus for the production of ice cubes, comprising a water reservoir (1) with a filling opening (3), which can be filled with a desired amount of water, an ice-cube tray (10), which is separate from the water reservoir and has at least one mould cavity (11), water-metering means for supplying a metered amount of water from the water reservoir to the mould cavity, at least one thermoelectric element (15) for freezing the amount of water in the mould cavity, control means (21) with a timer unit for providing current to the thermoelectric element for a defined freezing time, in such a manner that this element extracts heat on the side of the ice-cube tray, release means for releasing a frozen ice cube from the ice-cube tray after the cube freezing time, and discharge means for collecting and discharging the ice cube which has been released from the ice-cube tray.
摘要:
A food chiller (14) includes a container (2) into which cool air is moved over the cold sink (10) of a Peltier effect thermoelectric device (12) and directly into the container (2). Return air from the container exits the bottom of the container directly into the fan (9) for recirculation. Elimination of a long air duct system simplifies the construction and reduces heat loss.
摘要:
The invention relates to a heat exchanger, preferably a scraped surface heat exchanger, designed to heat or cool viscous or highly viscous material. Said heat exchanger is equipped with a product cylinder (3), which is surrounded by the heat transfer medium and contains a rotationally driven shaft (2). The shaft and the product cylinder form a gap (10) with an annular cross-section for receiving the material to be treated. To avoid the use of substances that are harmful to the environment or the operator as coolants, Peltier elements (5) are arranged between the heat transfer medium and the product cylinder (3) on the side of latter that faces away from the annular gap (10). Said Peltier elements cool the material to be treated on the secondary side, enabling water to be used as the coolant, said water posing no threat to the environment and being re-cooled without difficulty in water towers. The cooling process takes advantage of the effect of the thermal pump of the Peltier element.
摘要:
A method and device for rapidly changing at least one of the temperature and the state of a liquid in a container (10) is provided. The container (10) is rapidly rotated about its longitudinal axis. A source of a thin film of a medium having a different temperature than the liquid in the container (10) is provided to thermally affect the container (10) while rotating the container (10). The container (10) is positioned at an angle to the horizontal of less than 45°, and the position of the container (10) with respect to the thin film source is controlled by angling the axis of the container (10) skewed from the axis of the rotating mechanism. The device can be used to cool liquids such as beverages, warm liquids such as infant formula, and/or make ice cream.
摘要:
A thermal transfer comb includes numerous upwardly extending pins received in spaces around and between the sample containing wells of a well plate. Peltier effect modules are in contact with a base panel of the thermal transfer comb to apply heat to or remove heat from the comb. A heat sink and fan transfer heat from or to the modules.