IPTEK Journal of Proceedings Series
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Simulation of In Bag Fertilizer Loading Process In Port of Petrokimia Gresik to Increase Loading Rate
Get PDFPelabuhan Petrokimia Gresik is one of the element to support the goverment regarding to maintain stability of fertilizer loading speed. The issue that occurs at Pelabuhan Petrokimia Gresik is the low speed of loading of fertilizer in the bag for the past 4 years. The low speed of loading fertilizer in bag tends to affect its cost. This study aims to simulate the process of loading fertilizer in bag at the Port of Petrokimia Gresik in order to find out the factors which influence the speed deterioration of fertilizer bagging process and applicable alternative scenarios to improve the process of loading fertilizer in bag. Simulations were executed using discrete simulation methods. The results show that loading speed downturn are influenced by significant factors as follows: high loading preparation time at the dock, which consumes 29,35% of loading activity; the high loading time at the dock, which reaches 23,15% of loading activity; also the extensive duration of truck commute from the warehouse to the pier which utilizes 22,95% of loading activity. This study evaluate 7 alternative improvement scenarios. According to ROI perspective, it is preeminent to additionally put field internal control personnel at each shift when loading fertilizer in bag, which can increase the loading speed to 668,29 tons / day, of investment (ROI) of 68% will be obtained within 1 year and the payback period will approximately result in 0,60 years. The best scenario in terms of loading speed is to add internal control personnel and apply a new method of loading fertilizer using a sling bag with an increase in loading rate to 804.17 tons / day, following ROI value of 23% within one year and a PP value of 0.81 year
Selection of Operation and Maintenance Stategic Partner Using AHP-VIKOR Model
Get PDFIn order to increase CFSPP (Coal Fired Steam Power Plant) ABC actual EAF (Effective Availability Factor) from 76% in 2019 to designed EAF 85% by taking into consideration of investment funding hardship, PT.ABC initiate to select O&M (Operation and Maintenance) Strategic Partner, but it is not an easy decision and is associated with complexity. The purpose of this paper is to propose multi criteria decision making (MCDM) approach to effectively select the best partner out of 5 pre-selected partner candidates. The approach using AHP to calculate criteria weights, then VIKOR to get the final ranking result. The criteria and sub criteria define from experts’ discussion and literature review. Weights of 3 main criteria namely partner, collaboration and performance-oriented criteria are 0.113, 0.446 and 0.441. Alternative A1 is the first rank. There are 11 sub-criteria, with 3 biggest weights: 0.225 for project expectation, 0.162 for trust and 0.119 for technological capability. Project expectation and technological capability are from performance-oriented criteria while trust is part of collaboration-oriented criteria. This study can be useful for researchers to better understand of partner selection process and MCDM approach in theoritically, as well to companies in designing better partner selection system
Determining Business Strategy of Inspection Companies in Oil and Gas Upstream Business Activities
Get PDFInspection companies supporting upstream oil and gas business activities with multi-owned businesses are demanded to compete and survive in increasingly fierce market competition. Differences in the characteristics and scope of each business unit makes the company encouraged to be more observant in seeing the position rate of development of each business unit. A strategy is needed to ensure the treatment of each of these business units in order to achieve company goals. Identification, clustering and analysis of influencing factors affecting the company business performance are carried out through the stages of collecting secondary and primary data to obtain a follow-up plan for each business unit of the company. We use the real case in one of Indonesian Inspection Company. The method used in this paper is the analysis of strategy formulation in determining business strategies by three stages. First stage IFE (Internal Factors Evaluation) matrix and EFE (External Factor Evaluation) matrix are prepared then follow by IE (Internal External Matrix). Second stage, by assesment the following matrixes, we matched up with SWOT (Strength, Weakness, Opportunity, and Threat) matrix. Finally the final stage is taken by using QSPM (Quantitative Strategic Planning Matrix) to determine reliable strategy for inspection company in the upstream oil and gas business activities
Analysis of Root Causes of Fire in Coal Fired Power Plant Using FMEA Study Case Method at PT. PJB UBJOM PACITAN
Get PDFFire is one of the highest risks in using coal as fuel for electricity generation. Coal fires often occur in the area of coal handling facilities and are caused by damage to equipment, accumulation of coal dust that has not been cleaned and burning coal itself. This study aims to find out how the application of the FMEA method for the analysis of the root causes of fires in the Coal Power Plant with a case study of the Pacitan steam power plant uses a quantitative approach to find the root cause for prevention by respondents from PT. PJB UBJOM PACITAN at manager and supervisor level. In applying FMEA, the severity, events, and detection is needed to produce risk level figures which will be used as a step in determining the priorities of the company's mitigation management. Based on this study, 15 types of equipment failures were found in the operational coal handling facility at PT PJB UBJOM PACITAN. By using the FMEA method, 6 types of critical failures can be found that require more attention, namely dust on coal which has the potential to cause self-ignition, self-ignition of coal in the area, hot surface, self- combustion in coal yards and perforated crushing bodies
Subcontractor Selection Review Industry XYZ With Analytic Network Process (ANP) Method
Get PDFIn the steel construction of the Kendari Newport Container Facilitiy and Utilities Project's which was undertaken by the XYZ Contractor, there was a problem. Until the contractor issued a warning letter against the selected subcontractor because of delays in work. This research aims to examine the stages of selection subcontractors whether there is an error in decision making that causes delays work by subcontractor that selected as a partners.Therefore, decision makers need right selection methods. Multi Criteria Decision Making (MCDM) method is an appropriate method for the selection of several criteria. One of them is the Analytic Network Process (ANP) -Risk Assessment method.Based on the analysis using the ANP method ,sub-criteria with the highest priority weight is the bid price with a weight of 17.13%, The final results of the overall analysis showed that subcontractor B get in first place with a score 2,97. In this research subcontractor B has the highest value, which means that the subcontractor is feasible and accordance with the assessment of XYZ Company to be a partner to doing the steel construction work in this case stud
Consumable Material Spare Part Management Control in Electricity Transmission System
Get PDFOverstock spare part in the Electric Power Transmission System will affect the inefficiency in the asset management of the company. While the spare part stockouts in the company will disrupt the maintenance process of the electric transmission system, which then lead to power outages. Overstock spare parts are caused by several factors, such as forecasting errors in material requirements, intermittent requests, so it is difficult to determine the optimal order quantity. On the other hand, the unavailability of spare parts will affect the reliability of the electrical energy transmission system, which has the potential in causing a massive power outage. Monte Carlo simulations help to show the more concrete picture of the spare parts inventory condition using a periodic review (R, S) system approach. Divination of the combination of S and R parameters is very influential on the success of spare part control. Spare part classification is used for understanding the demand characteristics and the level of criticism. Moreover, the analysis of simulation results will show the information on supply fulfilment strategies to overcome the problems of either spare parts availability or spare parts overstock
Strategy for Growing the Business of Representative Office Company in Iron and Steel Industry
Get PDFIron and steel industry is among the essential strategic groups of the national industry since iron and steel products are not only raw materials for metal-based manufacture industries but also as pillars of development in infrastructure. The development of the iron and steel industry requires comprehensive handling; in the mastering of processing technology and the resources added value. The iron and steel industry is the “Backbone” in supporting the development of the national economy. Therefore, the Government’s role becomes crucial in developing the national iron and steel industry. Initially, the Indonesian steel industry was the largest in ASEAN, however over time, the position of Indonesian declines and no longer the largest. DAN is one of the three top manufacturers of plants and machines for the steel-making industry in the world. The unavailability of adequate government protection to domestic producers made imported steel products streamed heavily in all upstream and downstream sectors. This situation made the steel producer cannot grow and become stagnant in income; it cannot compete in costs; therefore, cannot invest and innovate effectively. The unavailability of the significant investment made DAN business in Indonesia become tough to grow. The purpose of the research is to develop a business strategy for DAN representative office to grow its business in Indonesia and choose a value proposition to the Indonesian market. To achieve the research objective, data collection in the method of interviews into Indonesia iron and steel industry stakeholders, along with a direct survey questionnaire into the experts to understanding industry situation and stakeholders' perspective of DAN overall performance. The various analysis framework, named PESTEL, Five Forces Porter, SWOT, were utilized to understand Indonesia iron and steel market, and company internal advantages and disadvantages in responding to it. The result of strategies is implemented with sequences: costing evaluation, financing support, human resources, partnership development, and investment
Risk Management in the Metal Casting Industry: Case in Ceper Klaten
Get PDFThis study investigates the implementation of risk management in the metal casting industry. Previous research examines risk management in the production process, while this research identifies risk management in business processes. The research sample is 68 companies incorporated in Batur Jaya cooperatives, Ceper Klaten. This research uses survey method. Business risk management consists of four dimensions: business strategic risk, operational risk, reporting risk and regulatory risk. The results showed that the implementation of business strategic risk, operational risk and reporting risk were good enough. The implementation of regulatory risk management is the lowest compared to the other three risk management dimensions
Lean Manufacturing Approach to Improve Speaker Manufacturing Process
Get PDFPT Y is a subsidiary of Y Group which specializes in producing speakers for local and international markets. At present PT Y's orders have not met the expected performance targets. Fulfillment of production orders reached 97.55% of the target of 100%. This is one of the concern of Y Group that PT Y need to improve themselves because it can result in companies becoming less competitive than competitors. Based on preliminary observations, there was indications of waste, namely defects, downtime, and process delays. The lean tool used for further waste analysis is Lean Assessment Matrix (LAM). The results of the research show that the waste which gives the most significant influences are transportation, waiting and inventory. The root causes of problems between work stations are not ergonomic, do not have preventative maintenance schedules, there are no standards for handling defective products, the layout of the room is not in the direction of material, the carrying capacity of hand trucks is small, and the Outgoing Quantity Check (OQC) processes are not included in the company’s time standards. The proposed improvement recommendations include conducting training to improve product repair skills, relayout of production plant, and making a preventative machine maintenance schedule
Sensitivity Analysis to Determine the Prospect of Tollroad Investment: Case Study Krian-Legundi-Bunder-Manyar Tollroad
Get PDFPT Waskita Bumi Wira as the Toll Road Business Entity (BUJT) is investing in the Krian-Legundi-Bunder-Manyar Toll road with a viability gap fund (VGF) scheme. In the 2016 Toll Road Concession Agreement (PPJT) between BPJT-BUJT-PII, several acceptable investment variables have been agreed, namely: total investment value = Rp12,224,389,000,000, average daily traffic volume (LHR) = 21,874 vehicle / day, loan interest = 12.5%, toll tariff for group 1 = Rp1,250 / km, internal rate of return on equity (IRRonEquity) = 17.64%, payback period of 14 years and net present value (NPV) = Rp. 3,731,695,000,000. During the construction, there was a design change and a delay in land acquisition, this causes cost overrun. With a concession period of 45 years, inaccurate risk factors in the prediction of traffic volume growth rates, specific and non-specific risk factors and other uncertainties greatly affect the investment prospects. Therefore investment needs to be reviewed before this toll road is divested in 2025 by sharpening the minimum attractive rate of return (MARR) and LHR variables, then comparing them with the initial business plan. The estimated selling price of the divestment is also examined in this study. The investment valuation criteria that will be used in the sensitivity analysis are NPV and IRRonEquity. The approach in determining MARR is the use of MARRpremium = 15.81%. Sensitivity analysis with a deterministic approach is carried out to obtain limits on changes in investment costs, land acquisition costs, LHR traffic, loans (syndicated loans) to NPV in several tariff scenarios. This research shows that the NPV value is very sensitive to changes in investment costs. It is also known that in the toll tariff scenario according to PPJT compensation can be given in one of the conditions: investment costs increase by more than 7%, LHR traffic is less than 75%, or an increase in loans (syndicated loans) of more than 9%. The analysis of the stochastic approach shows that the probability of not exceeding the investment budget revenue limits due to changes of 37.29% to 46.56%