Abstract: An arrangement for thermal management is disclosed, wherein a heat generating component is arranged within an enclosure, defined by an enclosure wall and in thermal contact with a thermal management fluid. The arrangement comprises an electrohydrodynamic flow unit, comprising a first and a second electrode, for controlling the flow of fluid within the enclosure.

Abstract: A method for altering one or more properties of a dielectric fluid for use in an electrohydrodynamic, EHD, thermal management system (100), as well as the system, are provided. The system comprises at least one EHD pump unit (110) comprising at least two electrodes for pumping the dielectric fluid and at least one enclosure (120) for accommodating the fluid within the system. The method comprises exposing the dielectric fluid to an ionizing process (122) configured to ionize the dielectric fluid, and operating the pump unit to circulate the exposed fluid in the enclosure.

Abstract: A thermal control system includes a closed loop arranged to carry a circulating fluid. There is at least a first heat exchanger and a flow unit in the closed loop. The flow unit includes a first electrode and a second electrode offset from the first electrode in a downstream direction of a flow of the circulating fluid. The first electrode and the second electrode are connectable to a voltage source. The first electrode is formed as a grid structure and arranged to allow the circulating fluid to flow through the first electrode.

Abstract: A method for altering one or more properties of a dielectric fluid for use in an electrohydrodynamic, EHD, thermal management system (100), as well as the system, are provided. The system comprises at least one EHD pump unit (110) comprising at least two electrodes for pumping the dielectric fluid and at least one enclosure (120) for accommodating the fluid within the system. The method comprises exposing the dielectric fluid to an ionizing process (122) configured to ionize the dielectric fluid, and operating the pump unit to circulate the exposed fluid in the enclosure.

Abstract: An arrangement for thermal management is disclosed, wherein a heat generating component is arranged within an enclosure, defined by an enclosure wall and in thermal contact with a thermal management fluid. The arrangement comprises an electrohydrodynamic flow unit, comprising a first and a second electrode, for controlling the flow of fluid within the enclosure.

Abstract: A battery device (100) is disclosed, comprising a plurality of cells (110), an enclosure (120) configured to accommodate cells when they are at least partly immersed in a thermal management liquid, and at least one flow unit (130) arranged within the enclosure to control a flow of the thermal management liquid through the enclosure. The at least one flow unit comprises a first electron (131) and a second electrode (132) that are arranged offset from each other and being connectable to a voltage source so as to affect the flow between the electrodes.

Abstract: A fluidic device is disclosed, comprising an enclosed passage that is adapted to convey a circulating fluid. The enclosed passage comprises a flow unit having a first electrode and a second electrode offset from the first electrode in a downstream direction of a flow of the circulating fluid. The first electrode is formed as a grid structure and arranged to allow the circulating fluid to flow through the first electrode. The fluidic device may be used for controlling or regulating the flow of the fluid circulating in the enclosed passage, and thereby act as a valve opening, reducing or even closing the passage.

Abstract: An array (10) of flow units (100) for controlling a flow of a fluid is disclosed. The flow units (100) are arranged to have a lateral extension in a common lateral plane and such that a downstream side (D) of a first one the flow units is in fluid communication with an upstream side (U) of a second one of the flow units so as to allow a flow of fluid to pass through said flow units. The flow units comprise a first electrode (110) and a second electrode (120) which are connectable to a voltage source. At least a portion of the first electrode has a maximum height (h1) in a direction parallel to the direction of the flow and a maximum gauge (w1) in a direction orthogonal to the direction of the flow, wherein said maximum height is larger than said maximum gauge so as to improve the pumping efficiency of the device. A method for controlling a fluid flow by means of such device is also disclosed.

Abstract: A device (100) for controlling a flow of a fluid is disclosed. The device comprises a first electrode (110) and a second electrode (120) offset from the first electrode in a downstream direction of the flow. The electrodes are connectable to a voltage source. The first electrode comprises bridges (111) and joints (112) forming a grid structure which is arranged to allow the fluid to flow through the first electrode. At least a portion of at least one of the bridges has a maximum height (h1) in a direction parallel to the direction of the flow and a maximum gauge(w1) in a direction orthogonal to the direction of the flow, wherein said maximum height is larger than said maximum gauge so as to improve the pumping efficiency of the device. A method for manufacturing the device, and a method for controlling a fluid flow by means of such device, is also disclosed.