Analysis Of The Effect Of Declining Turbocharge Performance On The Power Of The Main Engine On The Mt Chem Star Ship

Abstract

The purpose of the study is to analyze the indicators that cause the decline in turbocharge performance in the MT main engine. CHEM STAR. The research method is direct observation in the field and statistical analysis using JASP software with a paired t-test to compare conditions before and after the decline in turbocharger performance. The variables observed included boost pressure, exhaust gas pressure, intercooler temperature, engine room temperature, turbocharger rev (RPM), and engine power output (kW).

The results showed a significant decrease in boost pressure, intercooler temperature, engine room temperature, turbocharger RPM, and engine power output after a turbocharger performance disturbance (p < 0.001). A very strong positive correlation was found between power output with boost pressure (r = 0.988) and turbocharger RPM (r = 0.998), while a very strong negative correlation was observed between power output with exhaust gas pressure (r = -0.978), intercooler temperature (r = - 0.951), and engine room temperature (r = -0.992). The main causes of the decline in turbocharger performance are dirty air filters on the blowers as well as carbon buildup on the turbine blades that inhibit the flow of exhaust gases and reduce the turbocharger's working efficiency.

This study provides important recommendations for ship operations to carry out regular maintenance and cleaning of turbocharger components according to manual procedures to maintain engine efficiency and prevent further damage.