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All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science TEKMAPRO Journal of Industrial Engineering and Management Teknik dan Ilmu Komputer Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Accounting and Management Journal Prosiding Seminar Nasional Program Pengabdian Masyarakat JURNAL INOVASI TEKNIK INDUSTRI Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Mokh. Suef
Departement Of Business And Management Technology, Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Journal : IPTEK Journal of Proceedings Series

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Outage Management and House of Quality to Improve Power Station Performance Rochmansyah, Wahyu; Suef, Mokh.
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i1.5131

Abstract

The Coal Power Plant from Fast Tracking Project (FTP) owned by PT ABC is built by contractors from China. PT ABC is a company working in the area of the provision of electricity services business . In 2010 PT ABC establish business units new special serving the implementation of the operation & maintenance unit whenever the business units services operation & maintenance . Currently has been implement operation & maintenance four units of steam power plants a large scale with, namely Coal Fired Power Plant Indramayu , Coal-Fired Power Plant Rembang , Coal Fired Power Plant Pacitan And Paiton New Coal Fired Power Plant, The condition of generating equipment is not good enough. Maintenance undertaken is currently inadequate again despite the condition of the equipment age is still young. The maintenance of the power plant is needed so that the power plant can improve the quality of service in order to meet the community's guidance and the challenges of technological development. To improve overhaul planning and preparedness at an optimum level, maintenance management is required using Outage Management, which is a synergistic and sustainable process of Planning, Monitoring, Controlling and Evaluation of Planed Outage and using House of Quality (HOQ). Outage Management is used to optimize power plant maintenance activities by applying the rules of Right Problem, Right Solution, Right Design, Right Implementation. By using House of Quality (HOQ), broadly voice of costumer attempted to be converted directly into technical characteristics of maintenance. By applying it is expected the company will be able to achieve technical characteristics in accordance with the target set. from attribute of quizoner made there is Priority Voice of customer (VOC) requirement to Critical Customer Requirements (CCR) are Safety Base Outage Management on Frame Outage Management on priority 1 with score 97 while Outage Management on score 72
Quality Improvement of Public Services in Surabaya Radio Frequency Spectrum Monitoring Office with Integration of Service Quality, Important Performance Analysis and House of Quality Pribadi, Henry; Suef, Mokhamad
IPTEK Journal of Proceedings Series No 2 (2020): IConISE & ACISE 2020
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i2.9018

Abstract

The purpose of frequency spectrum management is to be effective, efficient, and free interferrence in frequency usage. As a Ministry Technical Unit, Balmon Surabaya has the task to supervise and controll the frequency usage in East Java. In carrying out their duties, there are some user’s complaints about Balmon Surabaya services. Therefore it is necesary to improve the quality of service and to know what service factors affecting the customers satisfaction. Objective of this research is to determine the quality of services and technical response that should be done in accordance with expectations of customers. The services as the object of the research are Radio Station License Distribution, Payment Notification Letter Distribution, and Interferrence of Frequency Report Handling. Measurement of the service is performed using Servqual methode while determining the variable to be improved use Important Performance Analysis. Then, Quality Function Deployment is utilized to develop the technical response influencing the service quality. The result shows that the highest gap is providing the free-toll telephone line, the 2nd is mentioning the data/references in giving the informations, and the 3rd is distributing the Payment Notification Letter before the due date. The Importance- Performance Analysis shows that there are 3 variabels in Quadrant I, distributing the Payment Notification Letter before the due date, mentioning the data/refferences in giving the informations, and providing of free-toll telephone line. QFD reveals that there are 3 Technical Responses with highest value of Important Rating of ie., the printing the Payment Notification Letter 2 months before the due date; confirming the letter receipt by the user, and proposing the toll-free number
Reliability Analysis and Economic Life Calculation for Asset Management Optimization (Case Study in Steam Power Generation Unit at XYZCompany) Anugrah, Gede Bayu; Suef, Mokhamad
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11200

Abstract

In a competitive market driven industry at a power generation business, requires The electricity producers to provide electricity with a low cost of supply. On the other hand, the large number of equipment assets managed by the power plant companies requires an appropriate asset management process, in order to reduce the increased maintenance and investment costs of equipment which which can cause an increase in the cost of supply. XYZ Company as a company that manages assets of more than Rp 174 trillion has challenges in the process of optimizing its company's asset management. The decreasing amount of maintenance and investment budget in the company each year and the equipment conditions that have been operated for more than 20 years, requires an asset management method that can provide a comprehensive understanding of the technical and economic conditions of each equipment, so it can be provide appropriate information to support the decision making process that is expected to reduce cost of supply.In this study, the authors conducted an analysis of asset conditions at XYZ Company by combining the method of reliability analysis and calculation of the economic life of the equipment. Case study was conducted at one of the units at XYZ Company precisely in Steam Turbine Unit 2.0. The purpose of this study is to obtain comprehensive information including the value of reliability and economic life of each equipment in the unit to facilitate management in the decision making process for the selection of maintenance strategies and asset replacement.Reliability analyzes were performed using RBD, RGA, and Weibull software. Reliability calculation will be done by looking at the amount and time between damages. Economic life calculation is done by calculating the annual equivalent cost. The analysis was performed on each equipment in the Steam Turbine Unit 2.0. From this analysis, it’s resulted the procedure for the classification of power plant equipment for the replacement process in accordance with the limits of the parameters of the reliability index and economic lifereliability and economic life conditon. Moreover, It’s resulted the mapping of Steam Turbine critical quipment. This mapping illustrates the amount of equipment that must be replaced immediately, still maintained, and the maintenance strategy needs to be evaluated immediately. This information is used by management in deciding the evaluation of equipment maintenance strategies and replacement strategies to reduce the power plant cost of supply.
Optimization of Gas Turbine Component Maintenance to Improve Reliability of Power Plant Industries Dharmawan, Doni Ardhi; Suef, Mokh.
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11076

Abstract

he thermal power plant unit in Java is PLTGU Z with 3 blocks consisting of 9 gas turbines, and 3 steam turbines with a total installed capacity of 1578.78 MW. One of the problems faced is a high component failure rate, decreased system reliability, and an impact on rising maintenance costs. The method to be implemented in order to maintain the achievement of power plant performance and reliability of generating units is to optimize equipment reliability. Periodic component replacement is one way to maintain the reliability of the unit, where current conditions do not yet exist as a standard that is specifically used as a basis for the component replacement activities. For this reason, optimization of component replacement is required by considering the value of reliability, equipment downtime, frequency of replacement time, and costs required. It is intended that the reliability of the equipment is achieved at the optimum cost. The first stage is to identify the reliability value based on the failure data using Weibull ++ 6 software, then adjusted to the system reliability target in accordance with company standards. The second stage performs calculations to determine the minimum time of downtime and minimum preventive maintenance costs in a period of time. The third stage is determining the optimization of equipment reliability and the consequence of the required cost increase according to the system reliability target. After optimizing the reliability of the system with a target value of R(G) = 0.7 the optimization results obtained with the longest preventive maintenance intervals on gas nozzle equipment every 8000 hours, and the shortest maintenance time intervals are found on the fuel gas system equipment that is 40 hours.
Fishermen Intentions Toward Floating Net Cage based on Technology Acceptance Model and Theory of Reasoned Action Suef, Mokh; Kurniati, Nani; Azizah, Farras Rahardini
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i1.5130

Abstract

In order to support offshore aquaculture in Indonesia, a floating net cage is being developed by Pusat Studi Kelautan ITS and will be placed in Sidoasri Village, Malang, Indonesia. The use of floating net cage will shift the habits of the fishermen. It will be very for the effort of developing the floating net cage if it will be rejected by the fishermen. Therefore, it is important to measure the factors influencing fishermen intention as a potential user to use the cage. In this paper, Technology Acceptance Model is integrated with Theory of Reasoned Action to identify the factors. The findings of this study, obtained that fishermen intentions to use floating net cage is influenced by their attitude and subjective norm, while perceived usefulness and perceived ease of use have a role to affect the intentions indirectly
The Effect of Customer Loyality and Satisfaction's Factors in Visiting Mall XYZ Farony, Rivan; Suef, Mokh.; Ratnasari, Vita
IPTEK Journal of Proceedings Series No 1 (2020): The 1st International Conference on Business and Engineering Management (IConBEM)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i1.11941

Abstract

Mall Success can be seen with a large number of mall visitors and visitors coming. In this case, one of the malls in the Tidar area of Surabaya is more important than most of the malls in general in the city of Surabaya. At the XYZ mall area, visitors are seen lonely from day to day, this is a big question mark whether visitors are satisfied to receive a compilation of visiting the mall. For this reason, the satisfaction of visitors and customers in the mall is an important factor in determining the buying and selling activities in the mall. The research offered suggests about customer satisfaction and customer loyalty proposed by, hedonic value, Relaxation Value, socialization value, Utilitarian Value. This can affect the purchasing power of consumers to buy at the mall. Satisfaction can provide a supported spending will, thus providing a significant turnover of money. By creating a sense of satisfaction can generate customer loyalty in the mall. This research was conducted by distributing questionnaires to visitors or customers who have come to the XYZ mall. The method used in this research is Structural Equation Modeling. by Processing data using Smart PLS software because the research model is complex. The findings in this study are the outcome variable, Hedonic Value, Relaxation Value, and Socialization Value regarding customer satisfaction and customer loyalty, while the Utilitarian Value only has a significant effect on customer satisfaction. The results of this study are expected to make the mall management considerations to develop the right strategy in increasing the number of visitors and customers to come to the mall.
Product Quality Improvement in the Assembly Process of the 5.56 mm Ammunitions (Variant MU5-TJ) at PT.X Using the Six Sigma Method Ratna Sari Trisna Wardani; Mokhamad Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11196

Abstract

Quality is one of the essential indicators for companies to exist amid strong competition. The 5.56 mm ammunition, especially variant MU5-TJ, is the primary commodity of PT. X. The process in ammunition production includes making cartridge cases, making bullets, making primers, and assembling ammunitions. The highest cost of defective products is led by defects in the preparation of the 5.56 mm ammunition, reaching 32.3%. In the process of preparing this kind of ammunition, most of the defects came from variant MU5-TJ, which accounted for 64%. This study aimed to improve the quality of the MU5-TJ ammunition preparation process by increasing its level of sigma. The method used in this study was the Six Sigma method through the Define, Measure, Analyze, Improve, and Control (DMAIC) phases. The quality identification results showed that the weighing and gauging process was the most contributing factor to the defects in the preparation of MU5-TJ ammunitions. The main defect found was the improper weight of the munitions due to the underfilling of propellant powder. The results of the chi-square test showed that the defect-causing factors with significant effects included the presence of sensor filling, varnish composition, tool material, and inspection methods. To reduce the defects, further improvements were made by installing the filling sensor on the ammunition assembly machine, changing the composition of the cartridge case mouth varnish, the use of tools made of hartmetall, and auto-control by the operator every 15 minutes. The results of the implementation of the improvements made resulted in an increase in sigma level from 3.69 to 3.79.
Waste Reduction in Electrical Production Process in PT Petrokimia Gresik Coal Utility Using Value Stream Mapping and FMEA Applications Rosyid Ridlo; Mokh. Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11075

Abstract

Unit Utilitas Batu Bara (UBB) is one of the power plants owned by PT Petrokimia Gresik which began operating in 2010. UBB consists of a steam boiler with a capacity of 2x150 tons per hour and a power plant with a capacity of 25 megawatt. There is waste in the electricity production process at UBB which is indicated by the value of actual efficiency is low compared to the value of efficiency in the design and performance test. This research discusses efforts to reduce waste in the process of steam and electricity production in UBB by making value stream mapping, identifying waste, conducting root cause analysis, and making FMEA. Through data collection and processing, interviews with expert employees at UBB, as well as comparing reference activities and actual activities, obtained that waste occurs in coal out from coal mill, boiler water, and boiler efficiency. Through analysis 5 whys, obtained fifteen root causes of waste. Through the calculation of events, severity, and detection the risk priority number is obtained. Based on the existing critical risks, through the collection of FMEA worksheets, an estimate of actions to reduce waste that occurred at UBB was obtained. The results showed that all total waste obtained was Rp. 126,364,598.13 / day in UBB. By asking for alternative improvements, a potential savings value of Rp.74,436,596 / day is obtained.
Mitigation of Fire Risk Using HIRARC Method in a Flexible Plastic Printing Company Rabbani Arieza Satya Yoga; Mokh. Suef; Indung Sudarso
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.156 KB) | DOI: 10.12962/j23546026.y2019i5.6433

Abstract

Fires are incidents and must be considered in all types of industrial production activities. In the last 2 years there were some incidence of fires on PT. XYZ, plastic printing company, 6 cases of small fires and 3 cases of large fires. The fire incident caused big losses, machine stopfor a long time and paId the employees fee who kept coming to work when the machine was being repaired. Main objective of this research is how to prevent fires and its causes and how to mitigate the fireusing the HIRARC method. The researchwas carried out in three main stages: The hazard identification stage, The risk assessment stage, and The risk control.The risk control was carried out based on 5 hierarchical risk control analysisto minimize the high risk of fire that can disrupt production activities in the company. The result of focusgroup discussion, the main cause of fire incident is the static electricity. Due to routine maintenance of the machines that currently have not been maximized, a maintenance strategy have been developed and inserted into the company risk management system
Quality Improvement of Instrument Transformer Using Taguchi Experiment Method in PT. XYZ Ziyaurrohman Alladany; Mokh. Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11109

Abstract

Up to this year, PT. XYZ has been experienced of increasing sales of instrument transformer products, along with increasing consumer demand. Quality is the most important thing in the manufacturing product. But on the production floor of PT. XYZ faces quality problems. Based on the 2018 production report from January to December the number of defective products is more than 2 %. The high defective products indicate that there needs to be an improvement in the production process as a form of effort to improve quality on an ongoing basis. However, to achieve these objectives the company must know which control factors have an effect on improving the quality of the product. This research is intended to assist companies in solving problems of multiresponse cases that occur in the case of instrumentation transformer defect products, it will be analyzed using Taguchi Experiment combined with the PCR- TOPSIS method to improve product quality. Based on the results of this research, the results obtained that using the PCR-TOPSIS method optimum conditions can be achieved in the oven temperature control factor 110°C, oven time 240 minutes, mixing temperature 60°C, mixing time 130 minutes, clamping pressure 3 bars, and time clamping 20 minutes. By using the optimum treatment settings can be achieved quality improvement in each response with the characteristics of the quality is larger is better, where the increase in power frequency response increases by 11.11% and the response of partial discharge increases by 39.17%.
Co-Authors Angreni, Endah Angreni, Endah Annisa Dewi Akbari, Annisa Dewi Anugrah, Gede Bayu Atmam Abdha Arianandha Aulia Akbar, Reza Azizah, Farras Rahardini Benhard Panangian Dewanti Anggrahini Dharmawan, Doni Ardhi Farony, Rivan Faurizal Limansyah Fauziyah Fatma Ningrum Febrianto, Anggi Handiwibowo, Gogor Arif Harahap, Elfira Febriani Hari Supriyanto Hariono Hariono Indung Sudarso Kurniati, Nani Loverinca Millenia, Vira Lucky, Novryan Lutvianto Pebri Handoko Maria Anityasari Novi Dwi Jayanti Pribadi, Henry Putu Dana Karningsih Rabbani Arieza Satya Yoga Ratna Sari Trisna Wardani Rindi Kusumawardani Rizaldy Rizki Pratama Rochmansyah, Wahyu Ronald Sukwadi Rosdianto, Moch Afif Rosdianto, Moch Afif Rosyid Ridlo Saiful Hakim, Muhammad Santoso, Bagus Jati Septin Puji Astuti Sherina Amalia Permatasari Sukma Setia Risnatha, I Gede Tommy Anandra Sunardi Udisubakti Ciptomulyono Vita Ratnasari Widawati, Enny Winoto, Maria Nicolas Ganden Gondho Yojana, Ratna Mira Yuanus, Franki Yudha Prasetyawan Yusita Mega Kuncoro Ziyaurrohman Alladany