International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Energy and Financial Analysis of Dual Fuel Gas Turbine Generator System

Abstract

The paper focuses on analyzing the energy and financial viability of a dual-fuel gas turbine generator (GTG) system, which operates on both diesel and natural gas. The study evaluates the GTG's performance in a gas processing facility located in East Java, which utilizes three GTGs configured to run two at a time with one on standby, each with a capacity of 13.7 MW. The exhaust gases from these GTGs are currently unused, representing a potential energy resource for the facility's steam requirements. To address this, a Heat Recovery Steam Generator (HRSG) system is proposed to harness the exhaust gas heat, producing medium-pressure (MP) and low-pressure (LP) steam. The study compares the thermal efficiency, power output, and cost-effectiveness of natural gas versus diesel fuel, considering their respective exhaust temperatures and flow rates. Results indicate that natural gas provides higher thermal efficiency, lower fuel consumption, and reduced emissions compared to diesel. Additionally, the HRSG using natural gas can produce more steam, enhancing the facility's overall efficiency. Financially, using natural gas could result in substantial savings, amounting to approximately $3,255.1 per hour. This analysis concludes that natural gas offers a more cost-effective and environmentally friendly solution for GTG operations, optimizing both the steam production and power generation capacity of the facility.

Country : Indonesia

1 Heru Sugiarto2 Marcelinus Christwardana3 W. Widayat

  1. Master Program of Energy, School of Postgraduate Studies, Diponegoro University, Semarang. 50241, Indonesia
  2. Master Program of Energy, School of Postgraduate Studies, & Department of Chemistry, Faculty of Science and Mathematics, & Research Collaboration Center of Electrochemistry, BRIN – Diponegoro University, Semarang. 50241, Indonesia
  3. Department of Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang. 50275, Indonesia

IRJIET, Volume 8, Issue 11, November 2024 pp. 128-133

doi.org/10.47001/IRJIET/2024.811012

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