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Shanis Irsamayanti
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Journal of Marine-Earth Science and Technology
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : -     EISSN : 27745449     DOI : https://doi.org/10.12962/j27745449
Core Subject : Science,
Earth & Planetary Sciences Energy
In the fast-growing of science and technology of marine-earth related topics, we would like to launch a new international journal entitled MarineEarth Science and Technology Journal (JMEST). This journal is aimed as a media communication amongst scientists and engineers in the fields of marine and earth science and technology and will receive research and technical papers to be reviewed by our editors and reviewers. The JMEST issued three times a year and each issue consists of 5 (five) papers. The scope of the journal includes (but not limited to): Geology, Geophysics, Geochemistry, Atmospheric Science, Environmental Science, Hydrology, Geothermal, Marine Engineering, Marine Technology, Underwater Technology, Marine Renewable Energy
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Teknik Geologi dan Geologi Teknik
Articles 76 Documents
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SLOW STEAMING IMPACT ON CONTAINER SHIP’S FUEL CONSUMPTION AND CARBON EMISSION, CASE STUDY: SURABAYA-MAKASSAR ROUTE Anjasmara, Haikal; Dhaifullah, Muhammad; Rahmi, Lista Putri Adinda
Journal of Marine-Earth Science and Technology Vol. 5 No. 2 (2024): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v5i2.1009

Abstract

This research investigates the implementation and environmental impact of "slow steaming" as an innovative method in maritime transportation, focusing on the route from Surabaya to Ambon. Utilizing a container ship model with a capacity of 100 TEUs, the study examines resistance data, engine power requirements, and the selection of a main engine aligned with sustainability goals. Slow steaming's influence on fuel consumption and emissions is analyzed, emphasizing cost-effectiveness and environmental benefits. The study extends to sailing route calculations, highlighting reduced oil consumption during slow steaming. Additionally, the research calculates the Energy Efficiency Existing Ship Index (EEXI), crucial for assessing and improving energy efficiency in compliance with International Maritime Organization regulations. The analysis of the container ship scenarios reveals optimal operational conditions and financial performance. In the Round-trip Full Load scenario, peak profitability is achieved at 77% engine load (10.5 knots), yielding Rp50,376,332,800.00 profit. In the Round-trip 1.5 Load scenario, maximum profit occurs at 54% engine load (9.5 knots), resulting in Rp21,245,220,000.00 profit. Bunkering costs, constituting 30-50% of the total cost, significantly influence economic dynamics. The Energy Efficiency Existing Ship Index (EEXI) peaks at 11 knots (31,166.06552) and reaches a minimum at 9.5 knots (22,518.17557). These insights offer guidance for optimizing maritime operational parameters and financial outcomes.
ANALYSIS OF MEASURING STOCK OPNAME OF CEMENT SUPPORTING RAW MATERIALS BY TOTAL STATION Rahmania, Tsabita Bayu; Kristian, Naomy Elliana
Journal of Marine-Earth Science and Technology Vol. 4 No. 2 (2023): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i2.1016

Abstract

PT Semen Indonesia (Persero) Tbk is a BUMN (State-Owned Enterprise) company that operates in the cement industry in Indonesia and even abroad. PT Semen Indonesia (Persero) Tbk is located in Sumberarum Village, Kerek District, Tuban Regency, East Java Province. PT. Semen Indonesia (Persero) Tbk implements an open pit mining system using the Quarry method. This company is always close to mining activities where they can run if they meet the requirements of the Work Plan and Budget (RKAB) requirements per the Decree of the Minister of Energy and Mineral Resources No. 1806 K/30/MEM/2018. Mining activity planning is the most crucial aspect in designing mine designs, as a reference for achieving production targets and analyzing stock reserves of production raw materials. Stock taking is a temporary storage place after undergoing the transportation process from the mining front so that it can be ensured that the quality of the limestone can be maintained as originally. (Aliyusra Jolo, 2017). The method used in this research involves field surveys, taking detailed points according to the shape of the appearance, and processing the data using AutoCAD Civil 3D software which has a Triangular Irregular Network (TIN) working concept. The results of the research show that in stock-taking, after calculating the area and volume, we obtained an area of 4634,266 m² for stock opname 1, an area of 2916,728 m² for stock-taking 2, 1669,189 m² for stock-taking 3, and the total area of stock opname was 6298,750 m². And for the volume itself, the resulting volume was 24,204,084 m³ for stock opname 1, an area of 14,263,732 m³ for stock opname 2, 4321,165 m³ for stock opname 3, and the overall stock opname area was 42,788,981m³. As a result, this limestone stock will be used as a supporting material for cement production.
DESIGN MODELING USING DEM DATA AND APPLICATION OF GEOTECHNICAL STUDY ON CLAY 134 MINE PT SOLUSI BANGUN INDONESIA TBK, TUBAN PLANT Assagaf, Umar Raihan; Charea, Wanda Nurlaily
Journal of Marine-Earth Science and Technology Vol. 4 No. 2 (2023): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i2.1017

Abstract

PT Solusi Bangun Indonesia Tbk is one of of the companies engaged in the building materials solutions industry in Indonesia, with an annual cement production capacity of 14,8 million tons and operates four plant namely in Lhoknga, Narogong, Cilacap, and one of them is located in Tuban, East Java precisely in Mekarwang, Tambakboyo, Tuban, East Java. The mining operation can proceed if it fulfils the requirements of the Work Plan and Budget (RKAB) in accordance with the Minister of Energy and Mineral Resources Decree No. 1806 K/30/MEM/2018. The mine planning is important aspect in planning mine design as the production objective. mine planning is the most crucial aspect in the mine design planning as a reference to achieve production targets. The raw material targets production in 2024 for clay is 2 million tons and the calculated tonnage obtained is 1.95 million tons. The opening of a new area is carried out in two blocks, namely E3 and D3, which are divided into three sections of new open-pit mining. To provide practical, fast, and efficient mapping, mapping is carried out using UAV (Unmanned Aerial Vehicle) which produces topographic and orthophoto maps. To understand the relationship of slope stress-strain, slope stability is identified using a geotechnical study with the simplified bishop method. The results show that the north-south cut has a safety factor of 1.882, while the east-west cut has a safety factor of 1.845 and categorized as safe because it complies with the Minister of Energy and Mineral Resources Decree No. 1827 K30 MEM 2018, which states that a Safety Factor (FS) value is >1.5. From this research, the researcher hopes for improvements in the quality of aerial photo data to produce accurate and optimal slope stability results.
GEOTECHNICAL MONITORING OF SLOPE STABILITY IN OPEN-PIT MINING AT PT. SEMEN INDONESIA (PERSERO), TBK TUBAN PLANT Prasetyo, Isnaini Fadhilah; Ayu, Rr Tiara Dyah
Journal of Marine-Earth Science and Technology Vol. 4 No. 2 (2023): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i2.1018

Abstract

PT Solusi Bangun Indonesia Tbk is one of of the companies engaged in the building materials solutions industry in Indonesia, with an annual cement production capacity of 14,8 million tons and operates four plant namely in Lhoknga, Narogong, Cilacap, and one of them is located in Tuban, East Java precisely in Mekarwang, Tambakboyo, Tuban, East Java. The mining operation can proceed if it fulfils the requirements of the Work Plan and Budget (RKAB) in accordance with the Minister of Energy and Mineral Resources Decree No. 1806 K/30/MEM/2018. The mine planning is important aspect in planning mine design as the production objective. mine planning is the most crucial aspect in the mine design planning as a reference to achieve production targets. The raw material targets production in 2024 for clay is 2 million tons and the calculated tonnage obtained is 1.95 million tons. The opening of a new area is carried out in two blocks, namely E3 and D3, which are divided into three sections of new open-pit mining. To provide practical, fast, and efficient mapping, mapping is carried out using UAV (Unmanned Aerial Vehicle) which produces topographic and orthophoto maps. To understand the relationship of slope stress-strain, slope stability is identified using a geotechnical study with the simplified bishop method. The results show that the north-south cut has a safety factor of 1.882, while the east-west cut has a safety factor of 1.845 and categorized as safe because it complies with the Minister of Energy and Mineral Resources Decree No. 1827 K30 MEM 2018, which states that a Safety Factor (FS) value is >1.5. From this research, the researcher hopes for improvements in the quality of aerial photo data to produce accurate and optimal slope stability results.
APPLICATION OF SLOW STEAMING ON 100 TEUs CONTAINER SHIP ON THE TANJUNG PERAK-BELAWAN ROUTE Andinuari, Fajar; Aji, Adi Sasmito; Virmansyah, Vialdo Muhammad; Putri, Rr. Niken Danartika Hadi
Journal of Marine-Earth Science and Technology Vol. 5 No. 2 (2024): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v5i2.1020

Abstract

Sea transportation is a vital component of international trade, constituting over 80% of global cargo movement. As the shipping sector anticipates a promising future amid economic liberalization and enhanced operational efficiency, the focus on reducing fuel consumption becomes paramount. This paper investigates the potential benefits and drawbacks of implementing slow steaming, a strategy involving reduced ship speeds, to curtail operational costs, particularly fuel expenses that constitute 47% of total ship operational costs. The liner shipping industry in Indonesia is examined as a case study, evaluating the impact of slow steaming on fuel consumption, emissions, and overall financial performance. Ship that was used in this paper is a 100 TEUs container ship with 2 x 1550 HP engine Yanmar 12AYM-WET which had a voyage route that is assumed to be direct from Tanjung Perak Port to Belawan Port without any transit at other ports. There are 6 speed variations from sea trial data to calculating fuel consumption. Another assumption used is that the dwelling time at Belawan port as of December 2023 is 2.89 days. Considering the dwelling time at Belawan Port, Medan, the speed chosen is 7.6 knots with a travel time of 8.16 days. The assumption is that the fuel used is Diesel Oil B35 with a price of Rp. 22,300/litre. The fuel savings with a travel time of 8.16 days is 19,283.13 litres. The RPM ratio in existing conditions is 1:1.3. So the conversion is carried out into a graph to get the existing FOC. Next, the FOC calculation is carried out by interpolating the fuel consumption diagram against RPM. The CII value at a speed of 7.6 knots shows 0.593 with an A rating. The EEXI value when the speed is 7.6 knots shows the number 7.1235 which is compliant.
EVALUATION OF CONTAINER TERMINAL SYSTEM PERFORMANCE IN TANJUNG PERAK SURABAYA PORT IN INCREASING CUSTOMER SATISFACTION USING BINARY LOGISTICS REGRESSION Khaeruddin, Muhammad Raehan; Achmadi, Tri
Journal of Marine-Earth Science and Technology Vol. 4 No. 2 (2023): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i2.1058

Abstract

In this sophisticated era, we can do almost anything, and we can get it easily. No exception with the necessities of life that we can get easily from one place and sent to us via transportation services, even goods with a large capacity. One of the transportation services that can efficiently deliver goods in large quantities is sea transportation via ships with a shipping system using containers. Tanjung Perak Port in Surabaya is one of the ports that provides container loading and unloading services. For this reason, in this study an evaluation of the performance of container terminals at the Port of Tanjung Perak Surabaya will be carried out by looking at the factors that influence customer satisfaction (Y), which consist of several predictor variables, namely price of goods (X1), weight of goods (X2) and Travel Time (X3) using the binary logistic regression method, which is a method used to model the response variable consisting of two categories and is appropriate for modeling data consisting of possible events with response variables consisting of two choice categories. Logistic regression will form a predictor/response variable, which is a linear combination of the independent variables. In this study, modeling was carried out to determine the relationship between whether the predictor variable affects the response variable and the extent to which this variable influences it. After knowing the variables that contribute to customer satisfaction, these variables can then be used as evaluation material, whether they need to be increased or reduced. Based on the results of the study, it was found that the variable weight of goods (X2) has a significant influence on customer satisfaction with a classification accuracy of 88.1%, so it must be optimized related to the container capacity that contains customer goods because, if this variable increases by 1 unit, it will increase the probability of customer satisfaction is 1.792 times and this increase is higher than the other variables.
INCREASING MARINE TOURISM WITH MARINE SPATIAL PLANNING METHOD AND GROWTH OF MARINE ECOSYSTEM MANAGEMENT OF UNUSED MARINE AREAS Patel, Hasanain Imtiaz Ismail; Gurning, Raja Oloan Saut
Journal of Marine-Earth Science and Technology Vol. 4 No. 2 (2023): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i2.1059

Abstract

The current state of the art of ecosystem-based marine spatial management (EB-MSM), a new approach to ocean management that is being supported all over the world as the best means of ensuring the sustainability of marine ecosystems. It aims to sustain robust, fruitful, and resilient ecosystems that supply essential products and services while withstanding human influences. It concentrates on all interactions within a marine ecosystem, including human interactions. The most cutting-edge science and innovative methods are needed for successful implementation. Focusing on the role of marine spatial planning (MSP) in marine ecosystem management and discussing the use of MSP to manage the risks associated with geohazards and climate change. Including creation of networks of marine protected areas (MPAs), how maritime activities are distributed both spatially and temporally, flexibility in fisheries management, actions to promote coastal resilience, the restoration of vital coastal ecosystems, the establishment of buffer zones between permanent structures and the coastline, and the implementation of risk-mitigation tools like monitoring programs and warning systems. More responsive demands of coastal countries and more actively supporting the economic integration of foreign operators and tourism. Even during disputes or cancellations, innovative ideas and agreements can stimulate the economy. For instance, a third party can create jobs in sub-Saharan West Africa, while a recreation area could increase tourist in Indonesia.
DIGITAL MANUFACTURING MODEL FOR REMOTELY OPERATED VEHICLE (ROV) IN INDONESIA: A CONCEPT STUDY Artaraharja, Yoseph Daniswara; Widjaja, Sjarief; Hermawan, Yuda Apri
Journal of Marine-Earth Science and Technology Vol. 4 No. 3 (2023): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i3.1060

Abstract

Industrial revolution 4.0 era represents a paradigm shift in manufacturing and technology, which is characterized by an integrated and interconnected system to support the operation of an industry. Many countries contributed to this era, including Indonesia. As a maritime country, maritime-related products have the potential to be offered. Remotely operated vehicles (ROV) is a form of digitalization product that is frequently used to support the operation of the maritime industry. Therefore, ROV is manufactured locally to provide easier access to industries demanding ROV. Digital manufacturing for ROV can bring further contributions towards industrial revolution 4.0, which involves the usage of digital technologies such as computer-aided design and manufacturing (CAD/CAM), internet of things (IoT), artificial intelligence (AI), and robotics to create an integrated manufacturing system. Furthermore, digital manufacturing information system provides real-time information during the manufacturing process. According to this study, digital manufacturing can significantly improve the efficiency and integration in manufacturing the ROV.
APPLICATION OF LINELESS TECHNOLOGY IN AUTOMATIC MOORING USING VACUUM SYSTEM Kuscahyo, Adhitya Rahman; Buana, I G. N. Sumanta
Journal of Marine-Earth Science and Technology Vol. 4 No. 3 (2023): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i3.1061

Abstract

The paper explores the innovative application of lineless technology in automatic mooring systems through the utilization of vacuum systems. Departing from traditional mooring methods, this approach offers enhanced safety, efficiency, and environmental sustainability. The study provides a concise overview of vacuum-based lineless technology's integration in automatic mooring, emphasizing its unique advantages and potential challenges. Vacuum-based lineless mooring systems employ advanced suction mechanisms, sensors, and control algorithms to achieve secure vessel mooring without manual intervention. This novel approach significantly reduces operational risks, minimizes wear and tear, and optimizes berthing precision. The paper delves into the technical intricacies of sensor integration, real-time monitoring, and adaptive controls, ensuring reliable and safe mooring even under dynamic environmental conditions. The adoption of vacuum-based lineless technology introduces considerations like technological reliability, cyber-physical security, vessel adaptability, and port infrastructure compatibility. Through a blend of literature review and practical insights, the paper evaluates the feasibility and economic implications of this approach, highlighting its potential to revolutionize maritime practices. As the maritime industry seeks forward-looking solutions, vacuum-based lineless mooring technology emerges as a promising avenue for reshaping vessel berthing and contributing to sustainable port evolution.
OPTIMIZING OIL VESSEL TERMINAL LAYOUT: A COMPREHENSIVE LITERATURE REVIEW Filemon, F; Gumelar, Fajar; Nugroho, Setyo
Journal of Marine-Earth Science and Technology Vol. 4 No. 3 (2023): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i3.1062

Abstract

This research paper systematically explores oil vessel terminal layout optimization, emphasizing safety considerations, environmental impact assessment, and efficient infrastructure design. The study employs a comprehensive methodology involving literature review and data synthesis, delving into technical and organizational safety aspects, safety exclusion zones, and the key components comprising an oil vessel terminal layout. By providing a holistic overview and a visual representation of terminal infrastructure, this research contributes to a deeper understanding of the complexities involved, offering valuable insights for industry practitioners and future research endeavours in this domain.

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