Abstract:
A chemical heat storage device includes a reactor disposed around an oxidizing catalyst and containing MgCl 2 which chemically reacts with NH 3 to generate heat, a storage connected to the reactor through a pipe to store NH 3 , an on-off valve disposed in the pipe, a temperature sensor detecting the temperature of the exhaust gas passing through the oxidizing catalyst, and a controller controlling the on-off valve based on the detected value of the temperature sensor. The controller controls the on-off valve such that the on-off valve unconditionally opens if the temperature of the exhaust gas is greater than a heat generating start temperature T L and is equal to or less than a heat generating end guide temperature T Q , and the on-off valve unconditionally opens if the temperature of the exhaust gas is greater than a regenerating temperature T H .
Abstract:
The present invention provides a plasma nozzle atomizing and pyrolyzing a liquid supplied by generating plasma therein to be mixed and sprayed with a gas with a fast speed by heat due to a plasma arc and flow excited chemical species. The plasma nozzle according to an exemplary embodiment of the present invention includes: a first housing discharging a supplied gas to a narrowed discharging port and being electrically grounded; a second housing provided near the discharging port of the first housing and spraying a liquid supplied through a spraying hole in the discharging port; and a driving electrode built in the first housing, forming a discharge gap along with the discharging port at an end part, and applied with a driving voltage.
Abstract:
Verfahren zur Abgasnachbehandlung eines Abgases einer Verbrennungskraftmaschine (1) unter Verwendung eines Thermoreaktors (11), wobei das vom Thermoreaktor (11) vorbehandelte Abgas katalytisch oxidiert wird, vorzugsweise im Thermoreaktor (11) katalytisch oxidiert wird.
Abstract:
The invention relates to an exhaust gas aftertreatment system particularly for a self-ignition internal combustion engine (1) having a catalytic converter and/or particulate filter inserted into a housing and associated with a burner (6) arranged upstream in an exhaust gas line (7), to which fuel can be supplied, and combustion air can be supplied via a combustion air line. The invention further relates to a method for operating an exhaust gas aftertreatment system of said kind. According to the invention, an exhaust gas aftertreatment system and a method for operating a system of said kind are provided, which are improved regarding the operation of the internal combustion engine (1). This is achieved in that the combustion air line (5) is connected to a crankcase ventilation line (2) of the internal combustion engine or that according to the claimed method the combustion air is the crankcase ventilation gas of the internal combustion engine (1). Thus advantageous use or disposal of the crankcase ventilation gas is achieved.
Abstract:
An exhaust system includes a combustion chamber and a radiation source configured to heat particles in an exhaust stream as the stream passes through the chamber. Once the particles are brought to an ignition temperature and begin to burn, the reaction within the chamber can become self-sustaining. The radiation source can comprise a resistive heating element, an infrared emitter, or a microwave emitter. The radiation source may radiate into the chamber through a radiation transparent window. The chamber may have a cross-section perpendicular to a longitudinal axis that is parabolic or partially parabolic. The exhaust system can also comprise a heat exchanger to pre-heat the exhaust before entering the chamber. Embodiments of the system can be configured to additionally perform as a catalytic converter and/or a muffler.
Abstract:
A method of using internal combustion engine exhaust in a combined cycle power plant is disclosed, wherein the quality and distribution of exhaust to the boiler space of a steam generated electric power plant is controlled to achieve greater system efficiencies, and wherein exhaust pollutants are reduced. Outside air is blended only with that portion of the exhaust that passes through the burner ports as secondary or higher level combustion gas. The remainder of the exhaust is provided to the boiler space by a route other than through the burner. The highest overall system efficiencies are achieved where the amount of outside air blended with the portion of exhaust that passes through the burner is such that the blend contains about the minimum amount of oxygen required for complete and stable combustion of the selected fuel, where a substantial percentage of the total exhaust is routed to the boiler space by a route other than through the burner, and where the amount of fuel is sufficient to achieve a desired boiler entering temperature upon its combustion. Pollutants are reduced by combinations of staged reburning, Selective Non-Catalytic Reduction, and Selective Catalytic Reduction processes applied at various points along the combustion and exhaust path.
Abstract:
A reactor that can be attached to the exhaust manifold of an internal combustion engine to oxidize and burn carbon soot particles, carbon monoxide, and unburned hydrocarbons, and to dissociate nitrogen and sulfur oxides. The reactor has a reaction zone that contains porous heat-retaining foam cells and that is bounded by a porous heat-retaining zone, which in turn is surrounded by ceramic insulation materials to minimize energy losses. Engine exhaust at elevated temperatures and containing some oxygen (air) enters the reaction chamber. By means of impinging heat transfer, thermal radiation enhancement, energy trapping and combustion of engine emissions, temperatures sufficient to oxidize carbon soot particles, carbon monoxide, and unburned hydrocarbons are attained. Steam or atomized water droplets are introduced to improve the efficiency of the reactor through gasification, regasification, water shift reactions, methanation, and hydrocracking reactions. Harmless product of the oxidation reactions, H2O and CO2, are released from the reactor.