A cooling device includes a cooling plate with a bottom wall portion with a lower surface which contacts a heat-generating component, a top wall portion which covers an upper surface of the bottom wall portion, a side wall portion which couples the bottom wall portion and the top wall portion, and an internal space which is surrounded by the bottom wall portion, the top wall portion, and the side wall portion to define a first cooling medium flow passage. The bottom wall portion includes blades on the upper surface. An inlet port or an outlet port is on one end side of the first cooling medium flow passage. An inner peripheral wall of the side wall portion includes a first bent portion which is bent convex inward between ends of the blades and the at least one of the inlet port and the outlet port.

A cooling device includes a cooling plate with a bottom wall portion with a lower surface which contacts a heat-generating component, a top wall portion which covers an upper surface of the bottom wall portion, a side wall portion which couples the bottom wall portion and the top wall portion, and an internal space which is surrounded by the bottom wall portion, the top wall portion, and the side wall portion to define a first cooling medium flow passage. The bottom wall portion includes blades on the upper surface. An inlet port or an outlet port is on one end side of the first cooling medium flow passage. An inner peripheral wall of the side wall portion includes a first bent portion which is bent convex inward between ends of the blades and the at least one of the inlet port and the outlet port.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

A store (1) for thermal energy, the store comprising: a housing (5) defining an internal chamber having an inlet and an outlet; and a plurality of receptacles (7) provided within the internal chamber and spaced from one another so that heat transfer fluid can flow over and around the receptacles (7) as the fluid moves from the inlet to the outlet; wherein each said receptacle (7) defines an internal cavity (9) for the storage of phase change material (PCM) so that thermal energy can transfer between the stored PCM material and the heat transfer fluid as the fluid passes over and between the receptacles.

The disclosure relates to a heating and/or cooling system having an energy conversion device included in a refrigerant circuit and having reducing means for reducing and/or removing solidified phase change material from a component of a heat transfer circuit, wherein the reducing means are driven by energy provided from the energy conversion device. The disclosure also relates to a corresponding method for reducing or removing solidified phase change material.

A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

A heat exchanging device includes: an inner wall and an outer wall, wherein the inner wall is close to the center axis of the heat exchanging device. The inner wall and the outer wall together form a chamber for a cooling medium to flow. The inner wall is provided with at least one protrusion component having an internal cavity. The protruding direction of the protrusion component faces the center axis. The internal cavity of the protrusion component is in communication with the chamber formed by the inner wall and the outer wall. The protruding direction of the protrusion component faces the crystal bar, and the internal cavity of the protrusion component is in communication with the chamber formed by the inner wall and the outer wall, which increases the heat exchanging area, and reduces the horizontal distance between the cooling medium and the crystal bar.