Session: 14-02-02: Reliability and Risk in Energy Systems

Paper Number: 110981

110981 - Implementation Risk Indicator and Application of Reliability Management to Ensure the Success of LCM and Risk Management Integration 

In providing services or products for PT PLN as our single buyer, one of the strategies undertaken by PT Indonesia Power is by managing its assets and the risks together and delivering customer products beyond demand. The strategic method used is Life Cycle Management (LCM) based risk management, where the company manage its assets and risks that can lead to the processes that can impact the company's target, and then prioritize the investment to prolong the life of the assets and enhanced the asset’s health. Therefore, the treatment of assets can lead to increase the reliability and enhance availability. In order to that, we developed Integration Risk Management (IRMA) application that can integrate the root cause in LCM with risk cause and the problem solving with risk mitigation. In this application, we implement Key Risk Indicator (KRI) and its monitoring system to monitor primary cause that can make risk happen.

One of the risks with significant impact and frequency is the occurrence of leaks in the boiler tube. This incident caused a significant loss of production. The common existing mitigations are tube replacement and conventional manual monitoring. Seeing this condition, we seize the opportunity for innovation through a risk management process, by monitoring and predicting digitally. We call it DOTA, which is a digital application in Reliability Management that is able to provide boiler tube wellness information sequentially down to the detailed sub-positions. In addition, this application is also able to provide information related to erosion rate (mm/yrs), the remaining life of each part of the boiler tube and prediction of material requirements based on the health of the boiler tube.

Basically a boiler is a equipment that functions to heat water using the heat from the combustion of fuel, the heat from the combustion then the heat from the combustion is flowed into the water to produce steam (water vapor that has a high temperature). The boiler also has hundreds of tubes in the process of heating water into steam, so these tubes require special monitoring so that there are no leaks that result in unit trips. The monitoring process is currently still using excel obtained from internal and external measurement data during the outage. So it is possible that there are errors when reading the health of the boiler tube and calculating the movement of the remaining life of the boiler tube using the thickness, replica and oxide scale methods. If this happens, it can result in boiler leakage problems caused by tube thinning

Presenting Author: Didi Rooscote PT PLN Indonesia Power

Presenting Author Biography: didi rooscote is a graduate of a master's degree in materials engineering and metallurgy. now working for more than 5 years in the field of reliability engineering, especially in the power plant business. Responsible to monitor asset management reliability process including Failure Mode Effect Analysis, Maintenance Strategy, Root Cause Failure Analysis report and ensure failure defense task to prevent force outage and derating. Monitoring asset wellness based on asset criticality ranking

Authors:

Didi Rooscote PT PLN Indonesia Power
Danianto Hendragiri PLN Indonesia Power
Agung Suharwanto PLN Indonesia Power Labuan