Cel To demonstrate the use of:(a) a 1,80 m diameter Fibreglass Reinforced Plastic (FRP) pipeline,(b) a steel draught tube for a Kaplan bulb turbine,(c) a voltage control system for an asynchronous generator, allowing insolated operation.Anticipated energy produced: 720,000 kWh/annumAnticipated cost: 0.08 ECU/kWh.The success of the several componentries can be commented on as follows :- fibreglass reinforced plastic pipeline. simple laying, especially with the steel-made coupler. little pipeline - losts, which help the plant to the high efficiency. so far no recognizable abrasion or damages- turbine. high total efficiency (81,4%). very reliable operation- coupler and steel intake pipe. simple and quick installation. saving of the formwork. steel draught tube- draught tube. fast installation. saving of the formwork. high efficiency- electronic controller. basically functional also for higher outputs. in need of improvement concerning voltage and frequency controlling. at the time not so perfected that a continuous operation is possible.Messrs. Ewald currently operate a 370 kW steam turbine and a 60 kW hydro turbine to produce electricity for their chemical works. The new hydroelectric scheme operates parallel with both of these during working hours; outside working hours the steam turbine is not used.Due to restricted space, the 40 metre long, 1,80 metre diameter pipeline cannot be constructed from concrete. Steel pipes present problems due to the available sizes and corrosion, so a fibreglass reinforced plastic pipeline is being used. Although commonly used in sewerage applications, FRP pipes of this diameter have not been used in hydroelectric applications.The conventional reinforced concrete draught tube of the bulb turbine is being replaced with a cheaper steel draught tube. Its vibration stability will be monitored.During working hours the steam turbine provides the magnetising current for the asynchronous generator. Out of working hours the magnetising current will come from capacitors, and the output voltage will be controlled by a new electronic voltage controller developed at Aachen Technical College.Alternatively connected with the public network.Head 3,2 metres Flow 4.7 m s-1 Turbine Kaplan bulb Turbine power 115 kW Generator 1 asynchronousEnd-use isolated system, weekend public network. Program(-y) ENG-ENDEMO C - Programme (EEC) of demonstration projects and industrial pilot projects (EEC) in the energy field, 1985-1989 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania DEM - Demonstration contracts Koordynator EWALD-WERKE GMBH & CO. KG. Wkład UE Brak danych Adres 6553 SOBERNHEIM Niemcy Zobacz na mapie Koszt całkowity Brak danych
