DESIGN OF INLET AIR COOLING SYSTEM CASE STUDY: PLTGU MUARA KARANG

• Main Author: (NIM : 13106100); Dosen Pembimbing : Dr. Ir. Prihadi Setyo Darmanto, ZULFIKRY
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17728
• Institution: Institut Teknologi Bandung

One of the most influential parameter on the electrical generating capacity in the Combined Cycle Power Plant is the compressor inlet air temperature. In general, gas turbine manufacturers design the maximum electrical generating capacity at temperatures less than 200C of ambient air temperature. Combined Cycle Power Plant in Indonesia, almost all work on the condition of the average temperature of 300C because of Indonesia's tropical climate, so that the capacity obtained was not optimal. To maximize the generation capacity in PLTGU additional installation required to cool the air to be used in gas turbine cycle. <br /> <br /> <br /> An Inlet Air Cooling system have been designed for 1 unit of Gas Turbine Generator with a capacity of 260 MW with air volumetric rate of 530 m3/s and assuming the condition of environmental air at a dry bulb and wet bulb temperature of 300C and 260C. For extreme conditions, the system serves the cooling load of 2008 TR. <br /> <br /> <br /> Estimation of system performance during one year of operation had been carried out using temperature data PLTGU operation Muara Karang. From the estimation performance can be concluded that the cooling system is able to maximize electricity generation capacity by an additional net power ranging from 9.5 MW to 15.6 MW. The total investment cost for this system is Rp. 18.529.021.000,-.