Abstract: The present invention relates to an emergency power system for an aircraft having at least one fuel cell unit for producing electric power, wherein the fuel cell unit is cooled via at least one cooling circuit which includes at least one heat exchanger, and wherein the heat exchanger is connected to at least one air distribution system of the aircraft cabin so that exhaust air heated by the heat exchanger in the operation of the emergency power system can be distributed via the air distribution system in the aircraft cabin.

Abstract: The present invention relates to an energy supply system of an aircraft comprising a fuel cell and having one or more consumers which are or can be connected to the fuel cell such that they are supplied with energy directly or indirectly from the fuel cell in emergency operation as well has having at least one active energy store which is or can be connected to at least one of the consumers such that the consumer(s) is/are supplied with energy from the active energy store at least at times.

Abstract: The present invention relates to an emergency power system for an aircraft having at least one fuel cell unit for producing electric power, wherein the fuel cell unit is cooled via at least one cooling circuit which includes at least one heat exchanger, and wherein the heat exchanger is connected to at least one air distribution system of the aircraft cabin so that exhaust air heated by the heat exchanger in the operation of the emergency power system can be distributed via the air distribution system in the aircraft cabin.

Abstract: The present invention relates to an energy supply system of an aircraft comprising a fuel cell and having one or more consumers which are or can be connected to the fuel cell such that they are supplied with energy directly or indirectly from the fuel cell in emergency operation as well has having at least one active energy store which is or can be connected to at least one of the consumers such that the consumer(s) is/are supplied with energy from the active energy store at least at times.

Abstract: The present invention relates to an apparatus and a process for locating and for measuring variations in temperature and/or in degree of fouling over the internal suface of equipment.

Abstract: The present invention relates to an apparatus and a process for locating and for measuring variations in temperature and/or in degree of fouling over the internal suface of equipment

Abstract: A combined component consists of a heat exchanger and a reactor. The heat exchanger is designed in a plate form, and flow spaces for a first medium and a second medium are alternately defined between successive plates. The plates of the heat exchanger are configured as essentially annular. The heat exchanger has, substantially perpendicularly to the plates, a tubular outer wall and a tubular inner wall. The reactor is surrounded by the inner wall of the heat exchanger. The product of the reactor is conducted through supply orifices on the inner wall of the heat exchanger into the flow spaces for one of the two fluids in the heat exchanger.

Abstract: A combined component consists of a heat exchanger and of a reactor. The heat exchanger is designed in a plate form, and flow spaces for a first medium and a second medium are alternately between successive plates. The plates of the heat exchanger are configured as essentially annularly. The heat exchanger has, substantially perpendicularly to the plates, a tubular outer wall and a tubular inner wall. The reactor is surrounded by the inner wall of the heat exchanger. The product of the reactor is conducted through supply orifices on the inner wall of the heat exchanger into the flow spaces for one of the two fluids in the heat exchanger.