MTU ONSITE ENERGY GMBH Patent applications |
Patent application number | Title | Published |
20130291834 | METHOD AND CONTROL DEVICE FOR OPERATING A SPARK IGNITION GAS ENGINE - The disclosure relates to a method for operating a spark ignition gas engine, with fuel gas in the form of biogas by setting an ignition time (ZZP) of the spark ignition gas engine. The method comprises to following steps: mixing of air and fuel gas to form a combustible gas mixture in a mixing arrangement, feeding in and igniting the combustible gas mixture in the combustion chamber while setting an ignition time (ZZP) and burning the combustible gas mixture while discharging exhaust gas from the combustion chamber. The method further comprises the steps of: detection of an exhaust gas temperature (T_AG) of the exhaust gas, predefining at least one reactor position (LRV) of a component of the mixing arrangement, setting the ignition time (ZZP) of the spark ignition gas engine as a function of the exhaust gas temperature (T_AG) and the reactor position (LRV). The reactor position (LRV) is predefined as a manipulated variable by a mixture controller. | 11-07-2013 |
20110269037 | FUEL CELL ASSEMBLY COMPRISING AN IMPROVED CATALYTIC BURNER - There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the recirculation means comprise at least one catalytic burner with catalyst material for burning the remaining combustible gas contained in the anode exhaust gas, said burner being situated at the side of the fuel cell stack. | 11-03-2011 |
20110177433 | ANODE FOR A MOLTEN CARBONATE FUEL CELL AND METHOD FOR THE PRODUCTION THEREOF - The disclosure relates to a method for the production of an anode for a molten carbonate fuel cell, wherein a mixture is created, containing at least one base metal and at least one auxiliary agent, and wherein the mixture is applied onto a carrier structure. The disclosure provides that a mixture is used, which contains at least one auxiliary agent in the form of a metal oxide and/or metal hydroxide, and which contains at least one alkali metal compound. The disclosure further relates to an anode that can be produced according to said method. | 07-21-2011 |
20110171551 | FUEL CELL ASSEMBLY WITH A MODULAR CONSTRUCTION - There is disclosed a fuel cell assembly comprising: at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the assembly consists of modular sub-assemblies that are independent of one another and that communicate with one another via standardised interfaces. A first sub-assembly comprises the fuel cell stack, the combustible gas supply means and the anode gas withdrawal means, a second sub-assembly comprises the cathode gas supply means together with a cathode gas distributor, a start-up heater and a heat exchanger, a third sub-assembly comprises a cathode exhaust gas collector, a cathode exhaust gas line, a gas mixer for mixing fresh air, the cathode exhaust gas and the anode exhaust gases, a catalytic burner and a collection line of the recirculation means, and a fourth sub-assembly comprises a delivery unit of the recirculation means. | 07-14-2011 |
20110171544 | FUEL CELL ASSEMBLY WITH IMPROVED GAS RECIRCULATION - There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the recirculation means comprises at least one collection line situated on one long side of the fuel cell stack for collecting the exhaust gases to be recirculated, said line opening into an inlet of a delivery unit which is situated on the end face of the fuel cell stack and which has an outlet that communicates with the cathode gas supply means. | 07-14-2011 |
20110033771 | ELECTRODE FOR MOLTEN CARBONATE FUEL CELL AND METHOD FOR ITS PRODUCTION - The present invention relates to an electrode for a molten carbonate fuel cell, with an electrochemically active electrode layer ( | 02-10-2011 |
20110003681 | REFORMING CATALYST FOR MOLTEN CARBONATE FUEL CELLS - The present invention relates to a catalyst composition and a catalyst material which are suitable for use as a reforming catalyst in a fuel cell and are less susceptible to catalyst poisoning by alkali metals. The invention also relates to a catalyst suspension for the preparation of the catalyst composition and the catalyst material, plus a process for the preparation of the catalyst suspension and the catalyst composition. The invention is also directed towards the use of the catalyst composition or the catalyst material in a fuel cell. | 01-06-2011 |