ORGANIC RANKINE CYCLE ANALYSIS ON GEOTHERMAL BASED ELECTRIC POWER PLANT IN TULEHU VILLAGE, MALUKU

• Main Author: Izzatur Rahman Noor, Zakka
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/71274
• Institution: Institut Teknologi Bandung

The rapid development of technology has an impact on the increasing human need for energy, especially electricity. At present, population growth and climate change are encouraging new interest and investment in renewable energy sources to provide access to reliable and sustainable energy. One of the renewable energy sources with huge potential in Indonesia is geothermal. With the advancement of geothermal technology, low-temperature sources can be used as a source of electrical energy by using organic rankine cycle (ORC). The use of lowtemperature geothermal sources can be an electrical energy solution for areas in Indonesia which are located still far from cheap electricity generation. In this research, a geothermal ORC plant study was conducted with a research location in Tulehu, Maluku. The source used is the TLU-01 exploration well with its geothermal fluid characteristics, namely 3 bar pressure, temperature 133.5 ° C, and debit of 238.89 kg / s. The results of this study are the use of a preheater and recuperator can increase the efficiency of the plant, with the highest efficiency obtained is 12.6% and the power generated is around 1800 kW. The highest efficiency plant design uses the R245FA work fluid with a maximum temperature of 133.5 ° C, a maximum pressure of 9 bar, a minimum pressure of 1.85 bar, and a mass flow rate of the working fluid of 65.5 kg / s. The cost of generation using the system is Rp. 1093.94, or 64% lower than the BPP of Ambon city in Maluku.