Optimasi Kecepatan Putar Fan Pada Air Cooled Condenser Berbasis Fuzyy-PID di Unit WHRPG SEMEN INDONESIA TUBAN

Waste Heat Recovery Power Generation (WHRPG) is a steam power generation system that utilizes exhaust gas heat from industrial production, in this way reducing CO2 gas emissions by 122,358 tons/year. In addition, the plant with WHRPG installation system is very cheap and environmentally friendly because without using coal fuel in general, but the exhaust gas to produce steam that will be used for electricity generation process on WHRPG.
In this WHRPG plant, researchers want to know the operational reliability of the fan on the air cooled condenser to the performance of the condenser by adjusting the fan speed in accordance with changes in the temperature of the condenser exhaust turbine, so that the high temperature of the condenser is reduced and the condensation process is accelerated and how to run fuzzy-pid control to determine the rotational speed of the fan to changes in the temperature of the exhaust turbine in the condenser. To determine the optimal fan operation on the performance of air cooled condenser, the researchers used Fuzzy-PID based method. This study uses simulation with matlab 2018A software.
In this study when the condenser pipe without a fan as a cooling medium the temperature produced is 80°C, this temperature increases from the initial 30°C, the increase in temperature is caused by heat flow from the turbine exhaust fluid with a calorific value of 272.22222244. To lower the temperature in the condenser required 5 fans as a cooling medium, in this process called forced convection heat transfer with voltage values respectively on the fan is 113.8 V, 125.5 V, 137.7 V, 150.4 V, and 163.8 V and fan speeds of 500Rpm, 525Rpm, 550Rpm, 575Rpm, and 600Rpm. With the performance of the fan condenser pipe temperature can drop to 33.30°C to lower the temperature at the expected sett point is 32°C then the performance of the condenser fan needs to be controlled using fuzzy-pid method.
From this study it can be concluded that by controlling the condenser fan using fuzzy-pid method can reduce the temperature in the condenser pipe in accordance with the expected sett point temperature is 32°C.