Abstract: An apparatus and method for precisely, quickly and substantially uniformly controlling a combustion system by a transfer of heat to a fluidic fuel along a heat/fuel interface having a large surface area substantially immediately prior to the mixing of the fuel with air is provided. The control of the temperature of the fuel input to an air/fuel mixing region of the combustion system provides improved efficiency by an expansion of modulation ranges available for factors that together are determinative of the efficiency of combustion system operation such as fuel flow rate, fuel droplet size, air flow and input fuel pressure. In addition, the fuel/heat interface can be utilized as an in-line fuel flow meter for remote monitoring of the fuel flow rates and the prediction of problems in system functionality and future system failure time frames.

Abstract: This disclosure is directed to devices, systems, and methods associated with a passive heat exchanger using thermally conductive foam. With reference to some systems the thermally conductive foam is positioned between a heat source and a heat dissipater to lower an operating temperature. With reference to other systems the thermally conductive foam is positioned between a component to be heated and a heat source to increase an operating temperature. Some embodiments of the thermally conductive foam are substantially pliable, other embodiments of the thermally conductive foam are substantially rigid, and other embodiments of the thermally conductive foam are initially fluid. Some devices related to the present disclosure include thermally conductive foam having thermally conductive particles within the thermally conductive foam.