Energetic state parameters measurements of LM 2500 naval gas turbine for modeling and simulation purposes

Bogdan Pojawa

doi:10.19206/ce-2017-437

Abstract

This article presents examples of results of energetic state parameters measurements of LM 2500 naval gas turbines operated by the Polish Navy. Currently in operation there are four LM 2500-type engines. In the near future, another LM 2500 engine will commence operations, along with a project 661M patrol ship. The energetic state parameters measurements covers the engine start-up process, their operation in idle mode and within the whole range of load variations, as well as stoppage of engine process. The article presents examples of characteristics specific to the above processes, determined based on the results of studies of this kind of engines. The results of these studies will be used to verify the modeling and simulation results of the internal energy processes occurring in this kind of engine.

Highlights

In practical operation of naval power plants, including naval propulsion systems with naval gas turbines, there is a need for analyzing them and comparing various solutions as well as for evaluating their technical condition [3, 5, 7,8,9, 16]
Start-up characteristics depend on corresponding adjustments made in the relevant engine and on its technical condition
The possibility of determining engine operating characteristics facilitates their use in the process of diagnostics in its broad sense

Summary

Introduction

In practical operation of naval power plants, including naval propulsion systems with naval gas turbines, there is a need for analyzing them and comparing various solutions as well as for evaluating their technical condition [3, 5, 7,8,9, 16]. Operational indicators of a naval power plant show its reliability, possibility of overloading main propulsion engines, ship's maneuverability, time between overhauls (TBO), etc. In cases of damage it is necessary to be able to locate it, and to identify the cause. For this purpose, systematic exploitation diagnostics are applied, including energy research. With the formulated measurement results at our disposal, it is possible to determine the characteristics of engines for further modeling and simulation purposes

Objectives

Results

Conclusion