Abstract:
According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.
Abstract:
A gas turbine is configured to operate with a high temperature combustion gas stream. The gas turbine may include a combustor that provides a combustion gas stream including charged particles and at least one turbine stage including at least one high temperature surface that may be driven with a voltage selected to repel the charged particles. The at least one high temperature surface may output a film-cooling layer including cool air, the film-cooling layer being stabilized by Coulombic forces between the voltage and the charged particles.
Abstract:
Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas- entrained particles.
Abstract:
A burner includes a flame sensor configured to detect at least one of permittivity, capacitance, or resistance across a flame region. The permittivity, capacitance, or resistance is used to determine the presence or absence of the flame in a combustion system.
Abstract:
A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.
Abstract:
A burner system includes staged reactions selected to output a low oxides of nitrogen (NOx) flue gas even when fuel carrying fuel-bound nitrogen is burned. The burner system further includes a perforated reaction holder generating a fuel by holding a gasification reaction within the perforated reaction holder by adding and mixing an oxidant. The fuel and oxidant are passed to a perforated flame holder for holding a combustion reaction between the fuel and the oxidant within the perforated flame holder. Heat is transferred from the perforated flame holder to the perforated reaction holder.
Abstract:
A furnace has a fuel and oxidant source to create a flow of combustible fuel/air mixture, a perforated flame holder on which the flow impinges, and a support structure to support the perforated flame holder in a position where it at least partially contains combustion of the fuel/air mixture. The support structure mechanically engages with the interior of the furnace to support the perforated flame holder, which may be movable within the furnace via a mechanism to optimize combustion or reduce NOx. The support may contain fluid coolant.
Abstract:
Embodiments disclosed herein are directed to devices and methods for improving operation of a combustion system. According to various embodiments disclosed herein, a prefabricated integrated combustion assembly is disclosed that may be installed into a combustion chamber of a combustion system. The combustion system may be a new combustion system that is being manufactured or a conventional combustion system that is being retrofitted.