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E.ON Power Plant Nuremberg

Water level, velocity of flow and discharge are monitored at two inflows of the E.ON power plan Franken I. The purpose of this measurement is to optimize the operation of the plan which partly covers the demand for electricity in the conurbation of Nuremberg-Fuerth-Erlangen.

Caudal – sistema Side Looking Doppler OTT SLD


Sistema Doppler para la medición estacionaria del caudal

El OTT SLD es un sistema de medición Doppler independiente para el registro continuo de la velocidad de fluidez y el nivel en aguas que fluyen naturalmente y seminaturalmente.

  • Instalación fija
  • Ultrasónico
  • Flujo, nivel de agua (opcional)
  • Filtro de barco integrado, interfaz Modbus para sistemas de control de proceso, cálculo de cantidades de extracción y vertido por intervalo de tiempo (máx. 1 día). Alcance hasta 80 m, según la frecuencia.
  • ±10 m/s
  • ±1 % del vaor medido ±0.5 cm/s
Registrador de datos IP OTT netDL 500, OTT netDL 1000


Registrador de datos con amplias posibilidades para la transmisión remota de datos

Los registradores IP de la serie OTT netDL permiten manejar de forma segura grandes cantidades de datos. Ofrecen una gran flexibilidad en la transmisión remota de datos y soportan numerosos formatos de datos.

  • Ethernet USB-Host USB-Device RS-232 Satelite Móvil Comunicación IP Comunicación industrial
  • Elevada disponibilidad de datos gracias a la memoria de gran capacidad y diferentes opciones de comunicación; Vías de comunicación redundantes; Comunicación por TCP/IP; Servidor web integrado; Muy bajo consumo; Opciones de comunicación industrial
  • SDI-12, RS-485 (SDI-12), Modbus RTU, Entradas analógicas (tensión y corriente), Entradas de estado/impulsos

The power plant Franken I in Nuremberg-Gebersdorf went on line already in 1913. Today it contributes a capacity of 843 megawatts to meet the demand for electricity in the conurbation of Nuremberg-Fuerth-Erlangen. This conventional power plant uses gas and oil as fuels. The high efficiency of plant allows an economical use of fuels thus reducing CO2-emissions.

  • The E.ON Kraftwerke GmbH is running Franken I in the so-called peak load segment which means, it is always used when the demand for electricity rises
  • The „peak-production“ is generated by a combined gas-and steam turbine. First, natural gas or oil is burned with compressed air in the burning chamber of the gas turbine, the combustion gas which originates from this process drives the gas turbine – exhaust gases are directed through the burner into the steam generator (boiler), where hot combustion gases are generated by combustion of natural gas or oil.
  • The combustion gases bring water to boil which is running through pipes in the boiler, the so-called boiler-feed-water. The steam produced is heated to 540 °C and directed under high pressure to the blades of a multistage steam turbine. This turbine is coupled to a generator so that the mechanical energy is converted to electrical energy.
  • Because of the efficiency advantages and the cooling capacity of the river Rednitz, the power plant units in Franken I are designed for cooling by freshwater and, if the water level is low, by cooling towers. The cooling water is taken from the river, cleaned mechanically and fed back into the Rednitz after flowing through the capacitors. The quantity and temperature of the cooling water is continually monitored and data is forwarded to the responsible authorities.

Two measuring sites at the inflows 1 and 2 of the power plant are equipped with an online measurement system. Monitoring water level WL1 and WL2, velocity of flow V1 and V2 and discharge Q1 and Q2. To optimize operation (reduce accumulation of sand) data is continually saved and transmitted. The systems are maintained remotely.

  • Two discharge measurement sites were equipped with  OTT SLD 2.0 – Side Looking – Doppler sensors for measuring the local velocity of flow (index velocity). It was not necessary to lead cables through the water.
  • Further components: station manager LogoSens2 to collect, process, save, and transmit all measured data , 12 V power supply, modem for data retrieval and remote maintenance


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