FINITE ELEMEN METHOD MODEL FOR STRENGTH ANALYSIS OF CARGO MACHINERY UNIT STRUCTURE ON FLOATING STORAGE REGASIFICATION UNIT

• Main Author: Mukti Prasetia, Fakhri
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50543
• Institution: Institut Teknologi Bandung

Floating Storage Regasification Unit (FSRU) is an LNG floating storage equipped with LNG processing facilities. Constructing FSRU cost less resources and time compared to the onshore terminal which can support the increment of natural gas utilization as fuel. In the FSRU regasification unit there is a component called cargo machinery unit which consist of electric motor, BOG compressor, oil separator, and gas cooler. Analyzing the strength of cargo machinery unit support structure is required to ensure the safety of the structure due to static and dynamic stress. In this study, structural strength analysis will be carried out using two configuration of support to obtain the best support configuration. The structural strength assesment is carried out by comparing the safety factor and critical natural frequency. Each type of support configuration will be simulated using two operation condition. The simulation will be carried out on the condition with one compressor is operating and both compressors are operating. The analysis result show that the safety factors due to static load are 2.09 for the first support configuration and 5.92 for the second support configuration. The critical natural frequencies are 25,3 Hz for the first support configuration and 26.2 Hz for the second support configuration. The safety factors due to combined load range from 1.36 – 1.81 for the first support configuration and 5.90 - 5.92 for the second support configuration. Based on the safety factor, number of support, and critical natural frequency the second support configuration is better than the first support configuration.