Digital Twin Monitoring System for Diesel Engine Based on Arduino, Case Study: RPM and Exhaust Gas Temperature

An engine is one of the most important equipment for a prime mover on the ship. Several sensors are needed to monitor the engine performance parameters, such as RPM and engine temperature. The digital twin technology makes it easy to ensure the performance of ship engines. Several variables on ship engines need to be monitored, including RPM and exhaust gas temperature. In this preliminary lab-scale research, Yanmar TF-65 was used to develop digital monitoring that can be carried out directly and continuously with the digital twin technology. In this research, a digital twin was developed with an Arduino-based system. Furthermore, an infrared sensor is installed to calculate the RPM and MAX 6675, which is connected to a thermocouple to measure the exhaust gas temperature. These sensors are connected to the Mappi 32 microcontroller circuit to monitor these parameters every 10 s. RPM parameters are measured by placing an infrared sensor on the flywheel of the Yanmar TF-65. Exhaust gas temperature measurement is conducted by placing a thermocouple on the engine exhaust. The average percentage value of the overall error for RPM is 27.1%, and the exhaust gas temperature is 6.4%.