Open AccessLow Power Steam Turbine Energy Efficiency and Losses During the Developed Power Variation
Author(s) -
Vedran Mrzljak
Publication year - 2018
Publication title -
tehnički glasnik
Language(s) - English
Resource type - Journals
eISSN - 1848-5588
pISSN - 1846-6168
DOI - 10.31803/tg-20180201002943
Subject(s) - boiler feedwater , turbine , feedwater heater , steam electric power station , steam turbine , nuclear engineering , combined cycle , heat recovery steam generator , environmental science , power (physics) , engineering , mechanical engineering , thermodynamics , physics
This paper investigates low power marine steam turbine during the variation in its developed power. The turbine is used for the Main Feedwater Pump (MFP) drive.Energy analysis of the Main Feedwater Pump Turbine (MFPT) is based on the measurements performed in nine different operating regimes. The measured operating parameterswere steam pressure and temperature at the turbine inlet, steam pressure at the turbine outlet, and a water volume flow through MFP. Turbine energy power losses are mostinfluenced by steam mass flow through the turbine and by steam specific enthalpy at the turbine outlet. An increase in turbine developed power causes a continuous increase inturbine energy efficiency. Analyzed turbine is balanced as most of the other steam system components – maximum energy efficiency will be obtained at the highest load, on whichthe majority of turbine and system operation can be expected during exploitation.