摘要:
The present invention relates to a preheating arrangement in a fuel cell apparatus, the fuel cell apparatus comprising at least a fuel cell unit having an anode side and a cathode side with an electrolyte therebetween, the fuel cell apparatus having at least a fuel inlet to the anode side and an oxygen-containing air inlet to the cathode side as well as a sulphur removal unit and a fuel modifying unit and an afterburner for combustion the exhaust gases from the anode and/or cathode side. According to the invention, the afterburner is provided with a separate fuel inlet channel for introducing fuel to the afterburner during the start-up phase of the fuel cell apparatus and that at least a part of the exhaust gases formed in the combustion of the separately fed fuel is arranged to be directed from the afterburner for heating at least the sulphur removal unit and/or the fuel modifying unit during the start-up phase. The outlet channels are provided with heat exchangers and adjustment means for adjusting the exhaust gas flow rate.
摘要:
The present invention relates to a preheating arrangement in a fuel cell apparatus, the fuel cell apparatus comprising at least a fuel cell unit, the fuel cells of which include an anode side and a cathode side and an electrolyte therebetween and in which fuel cell apparatus there is at least a fuel inlet into the anode side and an oxygen-containing gas inlet into the cathode side as well as a de-sulphuring unit and a fuel modifying unit and an afterburner for combusting the exhaust gases of the anode and/or cathode sides. According to the invention, a separate fuel channel has been arranged for the afterburner for introducing fuel to the afterburner at least during the start-up phase of the fuel cell apparatus and that at least a portion of the exhaust gases formed in the combustion of the separately fed fuel is arranged to be directed during the start-up phase of the fuel cell apparatus from the afterburner for heating at least the de-sulphuring unit and/or the fuel modifying unit.
摘要:
A method for spraying an aqueous liquid into the air intake duct (2) of a turbocharged piston engine (1) for humidifying the intake air to reduce nitrogen oxide emissions. In a first stage in the method, the intake air is heated by a heat exchanger element (5′) before the turbocharger and water midst is injected into the air intake duct after the first heading stage through at least one first nozzle (9, 10), and in a second stage the intake air is compressed by the turbocharger (4), causing its temperature to rise, and water mist is injected into the air intake duct through at least one second nozzle (12, 13) after the second stage.
摘要:
A fire shutter comprises a plurality of substantially planar fire plate elements each having first and second opposite edges and supported so that they are adjacent to each other and turnable about respective parallel axes from a flow-through open position, in which gas-flow passages are formed between the plate elements, to a closed position, in which the first edge of one plate element of each pair of adjacent plate elements is close to the second edge of the other plate element of the pair and the fire plate elements together form a closed barrier. The first edge of the one plate element is provided with a sealing structure including a plane part, which laps over an area adjacent the second edge of the other plate element to lie substantially parallel to the plane of that area of the other plate element, and a transverse part which is substantially perpendicular to the plane part and confronts the second edge of the other plate element, whereby distortion of the other plate element does not create a significant gap between the one plate element and the other plate element.
摘要:
The present invention relates to a preheating arrangement in a fuel cell apparatus, the fuel cell apparatus comprising at least a fuel cell unit having an anode side and a cathode side with an electrolyte therebetween, the fuel cell apparatus having at least a fuel inlet to the anode side and an oxygen-containing air inlet to the cathode side as well as a sulphur removal unit and a fuel modifying unit and an afterburner for combustion the exhaust gases from the anode and/or cathode side. According to the invention, the afterburner is provided with a separate fuel inlet channel for introducing fuel to the afterburner during the start-up phase of the fuel cell apparatus and that at least a part of the exhaust gases formed in the combustion of the separately fed fuel is arranged to be directed from the afterburner for heating at least the sulphur removal unit and/or the fuel modifying unit during the start-up phase. The outlet channels are provided with heat exchangers and adjustment means for adjusting the exhaust gas flow rate.
摘要:
A gas supply arrangement of a marine vessel being adapted to carry liquefied gas in its cargo tank having an ullage space section and a liquid phase section, which arrangement utilizes the gas as fuel to provide power for the vessel, the arrangement comprising a first gas supply line provided for processing the natural boil-off gas formed in the cargo tank, a second gas supply line which connects the cargo tank and the gas main supply line and which is provided with at least a pump for raising the pressure of the liquid gas and for pumping it forward. The second gas supply line is provided with a gas reservoir having an ullage space section and liquid phase section, and that the arrangement is provided with a first duct section of the second gas supply line connecting the liquid phase section of the cargo tank and the liquid phase section of the gas reservoir, and being provided with the pump, and that the arrangement is additionally provided with a return line connecting the liquid phase section of the reservoir and the cargo tank being provided with a control valve for controllable returning liquid gas back into the cargo tank.
摘要:
The present invention relates to an arrangement in fuel cell apparatuses for processing the leakage gases of fuel cells, the fuel cell apparatus comprising at least a fuel cell unit, the fuel cells of which include an anode side and a cathode side and an electrolyte therebetween and in which fuel cell apparatus there is at least a fuel inlet into the anode side and an oxygen-containing gas inlet into the cathode side. According to the invention the fuel cell unit is surrounded by a fire-proof casing provided with a combustion space, the combustion space of the casing being combined with an inlet for introducing oxygen-containing gas into the combustion space.
摘要:
A gas supply arrangement of a marine vessel being adapted to carry liquefied gas in its cargo tank having an ullage space section and a liquid phase section, and to utilize the cargo as fuel to provide power for the vessel, the arrangement comprising a first gas supply line which connects an ullage space section of the cargo tank and a gas main supply line and which is provided with a compressor for raising the pressure of the gas to an adequate level, a second gas supply line which connects liquid phase section of the cargo tank and the gas main supply line and which is provided with at least a pump for raising the pressure of the liquid gas and for pumping it forward. The second gas supply line is provided with a gas reservoir having an ullage space section and liquid phase section, which reservoir is connected to the liquid phase section of the cargo tank by a first duct section of the second gas supply line and to the gas main supply line by a second duct section of the second gas supply line. The invention relates also to corresponding method.
摘要:
A fuel cell arrangement comprising a number of fuel cell stacks (17, 17′) consisting of planar fuel cells, the stacks being arranged one after the other, each of which being provided with a gas connection for the inlet and outlet flows of the gas of the anode and the cathode side. The fuel cell stacks (17, 17′) are arranged as a tower on a fastening plane element (2, 2′) acting as a load-bearing structure, the tower being supported by means of an end piece (19, 19′) arranged at the end opposite to the fastening plane element (2, 2′) of the tower and by tie bars (11, 11′) connecting the fastening plane element and the end piece. The fastening plane element (2, 2′) is provided with inlet and exhaust flow channels for both anode and cathode side gas, the channels being connected to the common anode and cathode side gas tubes (6, 6′; 7, 7′) of the tower arranged in connection with the tower for arranging the gas connection of the fuel cell stacks.
摘要:
The present invention relates to a preheating arrangement in a fuel cell apparatus, the fuel cell apparatus comprising at least a fuel cell unit, the fuel cells of which include an anode side and a cathode side and an electrolyte therebetween and in which fuel cell apparatus there is at least a fuel inlet into the anode side and an oxygen-containing gas inlet into the cathode side as well as a de-sulphuring unit and a fuel modifying unit and an afterburner for combusting the exhaust gases of the anode and/or cathode sides. According to the invention, a separate fuel channel has been arranged for the afterburner for introducing fuel to the afterburner at least during the start-up phase of the fuel cell apparatus and that at least a portion of the exhaust gases formed in the combustion of the separately fed fuel is arranged to be directed during the start-up phase of the fuel cell apparatus from the afterburner for heating at least the de-sulphuring unit and/or the fuel modifying unit.