A heat transfer device is disclosed having a housing including a first main wall and a second main wall, the housing having a sealed internal cavity, a liquid contained in the internal cavity, and a mixer able to set the liquid in motion, the heat transfer device being able to be switched between a first state and a second state in which the liquid is in motion and transfers heat by convection between the first main wall and the second main wall, the thermal conductance between the first main wall and the second main wall in the first state being four times less than the thermal conductance between the first main wall and the second main wall in the second state.

The utility model discloses a novel phase change heat storage device, comprising a housing, wherein the housing is internally provided with a lining; an insulating layer is disposed between the lining and the housing; the lining is internally filled in with a phase change material; a coiled pipe is embedded in the phase change material; the inlet and outlet of the coiled pipe both extend out of the lining and are respectively welded with and communicate with a main water inflow pipe and a main water outflow pipe, so all welds between the coiled pipe and the main water inflow pipe and main water outflow pipe are positioned outside the lining and are not soaked by the phase change material. The lining is provided with at least one partition board; the partition board divides the inner space of the lining into independent spaces such that the phase change material is respectively positioned in the independent spaces divided by the partition board. Compared with the prior art, the utility model has a simple and novel structure design, solves the defects of existing phase change heat storage devices, greatly improves the heat exchange effect of the phase change heat storage device, reduces the production cost of the device, and prolongs the service life of the device.

The heat storage apparatus of the present disclosure includes a casing, a heat storage material that is located in the casing, a stirrer that is located in the casing, that is in contact with the heat storage material, and that rotates to stir the heat storage material, and a projection that is in contact with the heat storage material, that projects from the stirrer, and that rotates with rotation of the stirrer. The projection is continuously in contact with an inner face of the casing while the stirrer rotates.

A device (100) for storing heat/cold, by transfer from a charge fluid, for re-use by transfer to a discharge fluid, comprising: an external rigid container (102) and a storage assembly (118) inside an internal rigid container (116) for calorie/frigorie storage; a cold external interface (104.sub.1) on a wall (106) of the external container (102), communicating with a cold internal interface (110.sub.1) on the storage module (108), for passage of cold fluids between the cold external interface (104.sub.1) and the storage module (108); and a hot external interface (104.sub.2) on a wall (106) of the external container (102), communicating with a hot internal interface (110.sub.2) arranged on the storage module (108), for passage of hot fluids between the hot external interface (104.sub.2) and the storage module (108), the cold and hot external interfaces (104.sub.1, 104.sub.2) being on a single wall (106.sub.1) or on adjacent walls (106) of the external container (102).

A heat exchanger comprises a conduit defining an inlet flow path for a fluid; a heat exchanger matrix disposed to receive a flow from the inlet flow path; and a swirler disposed within the conduit and arranged to improve dispersion of a flow from the inlet flow path over the heat exchanger matrix.

A vibration isolating thermally conductive connector includes a first thermally conductive element configured to draw heat from a heat source, a second thermally conductive element separated from the first thermally conductive element, and a flexible seal connected with the first and second thermally conductive elements and defining an enclosed cavity between the elements. The enclosed cavity contains a thermally conductive liquid, and allows limited movement of the second and first thermally conductive elements with respect to each other while maintaining thermal connection.

The present disclosure relates to a water purifier. A water purifier according to an aspect includes a coolant tank in which a coolant is stored, a cold water pipe accommodated in the coolant tank, an evaporator accommodated in the coolant tank, a stirring member placed inside the coolant tank to stir the coolant, and a partition member accommodated inside the coolant tank to partition an inner space of the coolant tank into a first space and a second space, wherein the evaporator is located in the first space, and the cold water pipe is located in the second space.

A refrigerator, including a sealed refrigeration system, is provided herein. The sealed refrigeration system may include a compressor, a phase separator, and a rotatable heat exchanger. The compressor may compress a refrigerant fluid through the sealed refrigeration system. The phase separator may be in fluid communication with the compressor. The phase separator may include a separator body defining an inner face and an outer face. The inner face may define a refrigerant cavity within the phase separator body. The outer face may be directed away from the refrigerant cavity opposite the inner face. The rotatable heat exchanger may include a thermally conductive body defining a dynamic shear surface directed toward the outer face of the separator body. Moreover, a set fluid gap may be defined between the dynamic shear surface and the outer face.

A system and method is provided for direct condensing steam heating of oil sands process slurry streams including viscous bitumen froth and tailings products streams. Slurry viscosities greater than that of water increase cavitation and vibration issues. High solids content exacerbate component erosions. Difficult, and competing, steam and slurry interactions are managed by steam nozzle arrangements and management of steam injection at sub-sonic velocities based on a ratio of the slurry back-pressure Pb and steam supply delivery pressure Po.

An air agitator assembly for use with a heat-emitting object, where the air agitator assembly includes a perforated flexible plate confronting and spaced from a portion of the heat-emitting object to define an air space there between and at least one piezoelectric structure located on the perforated flexible plate and operably coupled to a power source.