Abstract: A heat exchange device is presented, the device comprises one or more channels having inlet and outlet ports configured to direct flow of a predetermined fluid to and from said one or more channels. Said one or more channels of the device comprise at least one channel having at least one orifice of a predetermined hydraulic diameter configured such that a flow of said predetermined fluid through said orifice and through said channel thereby generating a vortex ring-like fashion of the flow within the channel to provide efficient heat transfer by the fluid.