UTILIZATION OF AMMONIA AS A HYDROGEN STORAGE APPLIED IN THE TOSHIBA CYCLE

• Main Author: Alwan Azhari, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/68904
• Institution: Institut Teknologi Bandung

Hydrogen is currently widely used for oil refining and petrochemical fertilizers. Another potential use of hydrogen is as a fuel in power plants. Several studies related to this, for example, the Hydrogen Fueled Combustion Turbine Cycle (HFCTC). However, its development is still constrained by technology as well as the transportation and distribution of hydrogen as a fuel. In this study, a change in fuel storage from hydrogen to ammonia was made for one type of HFCTC, namely the Toshiba cycle. The modeling of the Toshiba cycle with ammonia storage was done by converting ammonia to hydrogen before the combustion. The software used is DWSIM with the advantage of being open-source software so that it can be used legally and free of charge. Energy and exergy analysis are carried out in the cycle hereinafter referred to as the integration cycle. Cycle performance results are modified for higher power and efficiency. The economic model analysis is also carried out to estimate the pay-out time as well as the current net present value. The simulation results show that the modification integration cycle produces a power of 500.5 MW with an efficiency of 51.78%, 9.9% lower than the Toshiba cycle. In economic modeling, there was an increase in NPV from -231 million USD in the Toshiba cycle to 1.32 billion USD in the modified integration cycle with a shortened payback period from 15 years to 6 years.