TRANSPORTATION COST PLANNING ANALYSIS OF LNG PLANT MODULE AT TANGGUH, BINTUNI, WEST PAPUA

• Main Author: Fadhilah Sidik, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/87997
• Institution: Institut Teknologi Bandung

Indonesia has an abundance of commodities, including natural gas reserves. One of the locations with reserves of abundant natural gas is Teluk Bintuni Regency, which results in there being a plan to build a new Liquified Natural Gas (LNG) plant in the Teluk Bintuni area. The new plant is an onshore modularized LNG plant, which consists of modular components that can be assembled into a complete plant. Therefore, the 400 modular components of the LNG plant need to be transported from the fabrication yard to Bintuni Bay within a period of 500 days. This study will determine the transportation cost for the 400 modular components of the LNG plant. The costing will be carried out by planning four alternative transportation methods, differentiating the size of the barge used and the location of the LNG modular component fabrication yard, and comparing the transportation cost simulation results of the four alternatives. The first alternative delivers the modular components from the fabrication yard located in Batam, using a 300 ft barge. The second alternative ships the modulars from the fabrication yard located in Cilegon, using the same barge from the first alternative. The third and fourth alternatives deliver the modular components from the same fabrication yard as in the first and second alternatives, but using a 270 ft barge. The four alternatives are simulated by designing the module placement configuration on the barge according to the size of the barge per alternative for transportation of 400 modules that have different sizes and weights. In addition, the determination of shipping routes and transportation scheduling is carried out in accordance with the rules of the DNVGL ST-N001 standard. Based on the DNVGL ST-N001 and DNV-RP-H103 standard, the maximum speed of towing is influenced by the significant wave height which cannot exceed 5 m, so an analysis of the shipping duration is carried out based on historical data on significant waves and swells for 10 years along the shipping route obtained from ECMWF ERA-5 data. The scheduling determines the duration of the voyage, the number of barges used, and the duration of module loading and unloading at the fabrication yard port and Tangguh Port, Bintuni. The limited ballasting capability of the barge and the high tidal range in Bintuni resulted in the need to plan a possible timeframe for module unloading activities at Bintuni Port using cranes and SPMTs. Simulation of transportation costs was carried out by estimating rental costs, in accordance with the rules of the regulation of the Indoneisan ministry of public works and public housing, article 1 of 2022, for the duration of transportation for each alternative. Finally, a comparison of the simulated transportation costs of the four alternatives is carried out and the most economical alternative is selected. The simulation results of transportation costs for the first alternative with the location of the fabrication yard in Batam and using a 300 ft barge amounted to Rp. 1,178.72 billion with a duration of 385 days. The second alternative with a fabrication yard in Cilegon using a 300 ft barge costs Rp. 980.52 Billion with a duration of 320 days. The third alternative with a fabrication yard in Batam and using a 270-ft barge costs Rp. 703.28 Billion with a duration of 394 days. The most economical alternative is obtained for the fourth alternative, with a fabrication yard in Cilegon and using a 270 ft barge, which costs 574.35 Billion for 419 days. This result indicates that, specifically for this scenario, the use of a 270 ft barge with a smaller size, is more economical with a final cost of 51% less than the first alternative with the use of a 300 ft barge because it is limited to a period of 500 days. This simulation does not take into account the barge stability factor in module placement so that it can produce different results if taken into account. Future simulations can be carried out by taking into account the stability factor of the barge during transportation to get more accurate results.