Apparatus for cleaning a fluid, in particular air

A method for controlling an apparatus for cleaning a fluid, in particular air, comprising a through-channel for the fluid, a radiation source device and a photocatalysis device, wherein the radiation source device emits electromagnetic radiation, and wherein the photocatalysis device can be exposed to at least some of the electromagnetic radiation in order to generate a photocatalytic reaction, the method comprising:

• a) detecting at least one radiation parameter of the electromagnetic radiation by means of a sensor device;
• b) comparing data detected by the sensor device with a setpoint value range by means of the control device;
• and
• c) modifying at least one control parameter of the radiation source device,
• wherein the radiation source device comprises a total number (Ntot) of radiation sources and the at least one control parameter is an operating number (NO) of radiation sources, and
• wherein in a first operating state the operating number (NO) of radiation sources being smaller than the total number (Ntot) of radiation sources and the radiation source device is emitting electromagnetic radiation with an optimal radiation parameter, it being possible for the operating number (NO) of radiation sources to be increased by means of the control device in case of a deviation of the radiation parameter from a setpoint value range in a form of falling below a threshold value such that the optimal radiation parameter continues being emitted by the radiation source device with an unchanged operating current (IO).

Apparatus for cleaning a fluid, comprising a through-channel for the fluid, a radiation source device and a photocatalysis device, the radiation source device emitting electromagnetic radiation, it being possible for the photocatalysis device to be exposed to at least some of the electromagnetic radiation in order to generate a photocatalytic reaction,

• wherein a sensor device is provided to detect at least one change in radiation parameters of the electromagnetic radiation, a control device being connected to the sensor device via signals, it being possible to modify at least one control parameter of the radiation source device by means of the control device in case of a deviation of the radiation parameter from a setpoint/threshold value or setpoint/threshold range,
• wherein an operating number (NO) of radiation sources corresponding to a total number (Ntot) of radiation sources and the at least one control parameter is an operating current (IO),
• wherein in a first operating state the operating current (IO) being smaller than a maximum operating current (Imax) and the radiation source device is emitting electromagnetic radiation with an optimal radiation parameter, it being possible for the operating current (IO) of the operated radiation sources to be increased by means of the control device in the case of a deviation of the radiation parameter from a setpoint value range in a form of falling below a threshold value such that such that the optimal radiation parameter continues being emitted by the radiation source device with an unchanged operating number (NO) of radiation sources.

A method for controlling an apparatus for cleaning a fluid, comprising a through-channel for the fluid, a radiation source device and a photocatalysis device, wherein the radiation source device emits electromagnetic radiation, wherein the photocatalysis device can be exposed to at least some of the electromagnetic radiation in order to generate a photocatalytic reaction, the method comprising:

• a) detecting at least one radiation parameter of the electromagnetic radiation by means of a sensor device;
• b) comparing data detected by the sensor device with a setpoint value range by means of the control device;
• and
• c) modifying at least one control parameter of the radiation source device,
• wherein an operating number (NO) of radiation sources corresponding to a total number (Ntot) of radiation sources and the at least one control parameter is an operating current (IO), and
• wherein in a first operating state the operating current (IO) being smaller than a maximum operating current (Imax) and the radiation source device is emitting electromagnetic radiation with an optimal radiation parameter,
• it being possible for the operating current (IO) of the operated radiation sources to be increased by means of the control device in case of a deviation of the radiation parameter from a setpoint value range in a form of falling below a threshold value such that such that the optimal radiation parameter continues being emitted by the radiation source device with an unchanged operating number (NO) of radiation sources.