Prototipe Safety Device Sebagai Sistem Monitoring dan Proteksi Pada Pembangkit Listrik Tenaga Uap Dengan Metode Decision Tree

Abstract

One of the problems that occurs in power plants, mining and shipping industries which are equipped with boilers and plants with high pressure and temperature working principles is the occurrence of overtemperature, overpressure and water flow control due to several factors such as the lifetime of the equipment and its protection which is not optimal, the need for supply inappropriate air and inadequate manual protection capabilities, thereby reducing safety performance from both mechanical and electrical factors. The effects of overtemperature, overpressure and water flow control on high-pressure and high-temperature devices such as boilers in power plants, autoclaves in the metallurgical, mining and oil industries, as well as governors or main engines in maritime transportation, especially ships, can trigger dangers such as decreasing the quality of protection, fires, Steam leaks and explosions can even result in death. The solution offered is a Safety Device Panel, which is a panel that has a monitoring and protection function with temperature, pressure and air supply parameters in the steam vessel whose size can be determined according to the requirements of the high pressure and temperature equipment and the air requirements to produce steam. The systematic function of this panel is guided by the temperature and pressure parameters with a comparison set-up according to the original conditions used to contact the Relay coil which is connected to the buzzer/alarm and the ignition power source line (burner) as a warning and automatic disconnection ( automatic shutdown) on equipment to reduce the risk of accidents in accordance with K3 (Occupational Safety and Health) principles using the decision tree method. In this study produces a percentage error from the temperature, pressure and air discharge sensor readings without The output in sequence is 3.82 percent, 2.31 percent n and 3.98 percent and the sensor readings are able to produce percentages with output in sequence, namely 20 percent, 13.3 percent and 6.67 percent. Conditioning the system for good safe conditions, high temperature, high pressure and danger obtained accuracy in sequence, namely 0 percent, 10 percent, 0 percent and 0 percent. So that the integrated system conditioning and sensor readings are able to produce an average boiler prototype efficiency of 92.54%, generator power of 20.21 J/sec, generator energy of 25.26 J/sec, turbine energy of 7.58 J/sec and turbine output energy of 17.68 J/sec.