Irvan Santoso, H. Warnars, F. Gaol, E. Abdurachman, B. Soewito
The development of technology and the internet is one of the critical factors that must be considered by companies especially those engaged in e-commerce. The web-based application is one of the tools used by e-commerce in making it easier for users to conduct transactions and data processing. The application that developed must be calculated carefully so the effectiveness and efficiency can be appropriately maintained. In this research, the calculation of the size of the software, effort, time, staff, and the total cost needed to work on an application was calculated using the Function Point Analysis (FPA) and Constructive Cost Model II (CoCoMo II) methods. The application that has been analyzed and estimated is Merchant Application Portal (MAP) which is an application designed by one of the companies in Indonesia. The estimation results obtained, scilicet the size of software amounted to 10,02972 KLOC, effort amounted to 48.521 Person Month, time development of 13 months, staff needed as many as four staff, and the estimated cost amounted to IDR 13,828,852.79 or $ 971.54. In addition, this calculation can be used by other companies to find out the resources needed in making a software to be more effective and efficient.
{"title":"Measurement of Web-Based Merchant Application Portal (MAP) Using Function Point Analysis and Constructive Cost Model II","authors":"Irvan Santoso, H. Warnars, F. Gaol, E. Abdurachman, B. Soewito","doi":"10.1145/3468013.3468670","DOIUrl":"https://doi.org/10.1145/3468013.3468670","url":null,"abstract":"The development of technology and the internet is one of the critical factors that must be considered by companies especially those engaged in e-commerce. The web-based application is one of the tools used by e-commerce in making it easier for users to conduct transactions and data processing. The application that developed must be calculated carefully so the effectiveness and efficiency can be appropriately maintained. In this research, the calculation of the size of the software, effort, time, staff, and the total cost needed to work on an application was calculated using the Function Point Analysis (FPA) and Constructive Cost Model II (CoCoMo II) methods. The application that has been analyzed and estimated is Merchant Application Portal (MAP) which is an application designed by one of the companies in Indonesia. The estimation results obtained, scilicet the size of software amounted to 10,02972 KLOC, effort amounted to 48.521 Person Month, time development of 13 months, staff needed as many as four staff, and the estimated cost amounted to IDR 13,828,852.79 or $ 971.54. In addition, this calculation can be used by other companies to find out the resources needed in making a software to be more effective and efficient.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131328662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dyah Rusty Indriani, Andri D. Setiawan, A. Hidayatno
In an attempt to increase domestic palm oil consumption, Indonesia has enforced the mandatory use of 20 per cent blended biofuel (B20). This policy is a part of the government's efforts to reduce oil dependency in energy use and greenhouse gas emissions. Nevertheless, the policy implementation is prone to affect water and food availability as the demand for biofuel crops is expected to grow significantly in the coming years. Correspondingly, a sufficient quantity of water, energy, and food resources is considered essential to achieve the sustainable development agenda. The increasing demand for all three resources undeniably places a great strain on its preservation management. On the other hand, the planning and management of these resources are under dissonant sectoral systems. This issue, which can make the balance between the three resources arduous to realize, needs to be scrutinized. The complex relationship between the three resources reflects a complex dynamic system, needing a holistic approach that considers the integration of Water-Energy-Food (WEF) nexus to understand the system better. Therefore, this study aims to understand the trade-offs between the WEF nexus on the production and utilization of biofuel. For this purpose, a conceptual system dynamics model in the form of Causal Loop Diagram is developed to analyze the complex structure of biofuel development in Indonesia from the WEF nexus perspective. The conceptual model shows that many underlying factors affecting biofuel development should be considered when formulating policy for attaining a sustainable balance between water and food resources.
{"title":"Managing the Biofuel Industry in Indonesia: A Conceptual Model of the Water-Energy-Food Nexus","authors":"Dyah Rusty Indriani, Andri D. Setiawan, A. Hidayatno","doi":"10.1145/3468013.3468646","DOIUrl":"https://doi.org/10.1145/3468013.3468646","url":null,"abstract":"In an attempt to increase domestic palm oil consumption, Indonesia has enforced the mandatory use of 20 per cent blended biofuel (B20). This policy is a part of the government's efforts to reduce oil dependency in energy use and greenhouse gas emissions. Nevertheless, the policy implementation is prone to affect water and food availability as the demand for biofuel crops is expected to grow significantly in the coming years. Correspondingly, a sufficient quantity of water, energy, and food resources is considered essential to achieve the sustainable development agenda. The increasing demand for all three resources undeniably places a great strain on its preservation management. On the other hand, the planning and management of these resources are under dissonant sectoral systems. This issue, which can make the balance between the three resources arduous to realize, needs to be scrutinized. The complex relationship between the three resources reflects a complex dynamic system, needing a holistic approach that considers the integration of Water-Energy-Food (WEF) nexus to understand the system better. Therefore, this study aims to understand the trade-offs between the WEF nexus on the production and utilization of biofuel. For this purpose, a conceptual system dynamics model in the form of Causal Loop Diagram is developed to analyze the complex structure of biofuel development in Indonesia from the WEF nexus perspective. The conceptual model shows that many underlying factors affecting biofuel development should be considered when formulating policy for attaining a sustainable balance between water and food resources.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121269556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inventory control is very important in company bussiness. Based on data from the Ministry of Industry, the electricity cable industry is expected to experience growth of around 10% -15%. And it is predicted that this increase will continue to grow for the next few years, given that Indonesia is developing in terms of infrastructure and industry. To keep good in track, a good inventory planning is needed so that the goals are achieved to meet customer needs. Several previous studies on the predictions of the quantity of future product stocks, concluded that inventory, both in the form of raw materials, in-process goods, semi-finished products and finished products. The main contribution of this research is to make decision support models by predicting orders from customers so as to minimize the risk of inventory failure. In order for inventory management to be more efficiently assessed according to experts, the opinions of experts. Therefore, a combination of Fuzzy Analytical Hierarchy Process (Fuzzy AHP) and Artificial Neural Network (ANN) is carried out for inventory management.
{"title":"Inventory Estimation Model with Fuzzy Analytic Hierarchy Process and Neural Network Approaches in the Wiring industry","authors":"Fauzie Rachman, Z. Zulkarnain","doi":"10.1145/3468013.3468401","DOIUrl":"https://doi.org/10.1145/3468013.3468401","url":null,"abstract":"Inventory control is very important in company bussiness. Based on data from the Ministry of Industry, the electricity cable industry is expected to experience growth of around 10% -15%. And it is predicted that this increase will continue to grow for the next few years, given that Indonesia is developing in terms of infrastructure and industry. To keep good in track, a good inventory planning is needed so that the goals are achieved to meet customer needs. Several previous studies on the predictions of the quantity of future product stocks, concluded that inventory, both in the form of raw materials, in-process goods, semi-finished products and finished products. The main contribution of this research is to make decision support models by predicting orders from customers so as to minimize the risk of inventory failure. In order for inventory management to be more efficiently assessed according to experts, the opinions of experts. Therefore, a combination of Fuzzy Analytical Hierarchy Process (Fuzzy AHP) and Artificial Neural Network (ANN) is carried out for inventory management.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126641631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The safety culture plays a very important role in shaping the behavior of workers in the operation and maintenance of the Coal Power Plant. Thus efforts to reduce work accidents in operation and maintenance must begin by establishing a good work safety culture. However, the study of the culture of workplace safety and the influence between dimensions of the culture of workplace safety is still very rare in the operation and maintenance of the Coal Fired Power Plant (PLTU). This research is aimed at knowing empirically the influence of the dimensions of safety culture on strategies to improve safety performance. To achieve this goal, first proposed a model consisting of eight dimensions of safety culture namely commitment, leadership, responsibility, competence, engagement & involvement, information & communication, risk, and organizational learning. Confirmatory Factor Analysis (CFA) was conducted to confirm the eight safety culture constructs. This model is then tested by Structural Equation Modeling (SEM) to identify the most significant relationship influence. Data was obtained by distributing questionnaires to 246 workers at PLTU A and PLTU B in Indonesia using stratified sampling and measurement methods using a safety culture maturity model. These findings attempt to help the operation and maintenance services company management by identifying the significant influence of dimensions to improve safety performance.
{"title":"Conceptual Modeling of Safety Culture in Coal Steam Power Plant Operations and Maintenance Services in Indonesia","authors":"A. Sudiarno, E. Hermawan, S. Partiwi","doi":"10.1145/3468013.3468668","DOIUrl":"https://doi.org/10.1145/3468013.3468668","url":null,"abstract":"Abstract The safety culture plays a very important role in shaping the behavior of workers in the operation and maintenance of the Coal Power Plant. Thus efforts to reduce work accidents in operation and maintenance must begin by establishing a good work safety culture. However, the study of the culture of workplace safety and the influence between dimensions of the culture of workplace safety is still very rare in the operation and maintenance of the Coal Fired Power Plant (PLTU). This research is aimed at knowing empirically the influence of the dimensions of safety culture on strategies to improve safety performance. To achieve this goal, first proposed a model consisting of eight dimensions of safety culture namely commitment, leadership, responsibility, competence, engagement & involvement, information & communication, risk, and organizational learning. Confirmatory Factor Analysis (CFA) was conducted to confirm the eight safety culture constructs. This model is then tested by Structural Equation Modeling (SEM) to identify the most significant relationship influence. Data was obtained by distributing questionnaires to 246 workers at PLTU A and PLTU B in Indonesia using stratified sampling and measurement methods using a safety culture maturity model. These findings attempt to help the operation and maintenance services company management by identifying the significant influence of dimensions to improve safety performance.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130603339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The routine spare parts with vital criticality had 4899 items stock in the spare parts warehouse, consisting of 3778 items on the 1st floor, 1060 items on the 2nd floor, and 61 items non-location. Non-location and un-located spare parts into the rack caused by the poor put away process. It impacted on additional time of pick-up order process to search and pick-up the spare part, and possibly missing spare parts, and also it already became finding by the internal audit of PT. Tire Indonesia. This research was to identify and analyze the poor put away process then improves with class-based and dedicated-based storage. Adopting the haphazard storage in the put away process to allocate the item by considering the empty rack, might cause the poor put away process. The poor put away process impact to pick-up order process that takes time to search and non-location spare part occurred. Change the method to Class-based and dedicated-based storage provides information to allocate the spare part and create the alternative layout. The result is total throughput of the pick-up order process on the alternative layout was increased by 25 % on the 1st floor and by 56 % on the 2nd floor spare part warehouse.
{"title":"Improvement Put Away Process with Class-Based and Dedicated-Based Storage in Spare Part Warehouse PT. Tire Indonesia","authors":"Ali Firmansyah, A. Pratama, T. D. Sofianti","doi":"10.1145/3468013.3468651","DOIUrl":"https://doi.org/10.1145/3468013.3468651","url":null,"abstract":"The routine spare parts with vital criticality had 4899 items stock in the spare parts warehouse, consisting of 3778 items on the 1st floor, 1060 items on the 2nd floor, and 61 items non-location. Non-location and un-located spare parts into the rack caused by the poor put away process. It impacted on additional time of pick-up order process to search and pick-up the spare part, and possibly missing spare parts, and also it already became finding by the internal audit of PT. Tire Indonesia. This research was to identify and analyze the poor put away process then improves with class-based and dedicated-based storage. Adopting the haphazard storage in the put away process to allocate the item by considering the empty rack, might cause the poor put away process. The poor put away process impact to pick-up order process that takes time to search and non-location spare part occurred. Change the method to Class-based and dedicated-based storage provides information to allocate the spare part and create the alternative layout. The result is total throughput of the pick-up order process on the alternative layout was increased by 25 % on the 1st floor and by 56 % on the 2nd floor spare part warehouse.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116665672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Transportation is one of the problems faced by many countries with a high population with limited urban areas and road capacity. Another problem with the transportation system is the poor quality of services. Surabaya is one of several most populated cities in Indonesia. According to data from the Central Statistics Agency in 2018, the population in Surabaya reached 2.89 million with a population density of 8,844 people per KM2. The Government already took action about this issue. They would like to build an urban transportation system which is the trans bus, namely Suroboyo Bus. This is a pilot project from the Government to reduce congestion in Surabaya by using plastic waste as innovation payment. To build a good urban transportation system, good services of quality is a must to be implemented. Therefore, it is necessary to evaluate service quality in a measured, structured, and comprehensive way. SEM (Structural Equation Modeling) will be suited to this problem because it can accommodate the complexity of evaluation models with many constructs and indicators. Besides, SEM can provide results to the core of the research, so that researchers can determine the weight of each indicator. In the end, the researcher can provide accurate recommendations for improving the quality of services. There will be 350 respondents which are then processed through AMOS. A model is built using 28 indicators with 8 independent variables and 1 dependent variable (user satisfaction). Based on the calculation results, it shows that the model has met the assumptions and fit after the first modification was made. The output obtained is that 3 independent variables already had a positive influence on user satisfaction. Meanwhile, 5 other independent variables become input and suggestions for improvement to service providers. The five variables are connectivity, information, time, friendliness, and security.
{"title":"Modeling for Services Evaluation of Trans Bus at Surabaya Based on User's Perspective","authors":"Muhammad Zulfikar Emir Zanggi, N. Arvitrida","doi":"10.1145/3468013.3468315","DOIUrl":"https://doi.org/10.1145/3468013.3468315","url":null,"abstract":"Transportation is one of the problems faced by many countries with a high population with limited urban areas and road capacity. Another problem with the transportation system is the poor quality of services. Surabaya is one of several most populated cities in Indonesia. According to data from the Central Statistics Agency in 2018, the population in Surabaya reached 2.89 million with a population density of 8,844 people per KM2. The Government already took action about this issue. They would like to build an urban transportation system which is the trans bus, namely Suroboyo Bus. This is a pilot project from the Government to reduce congestion in Surabaya by using plastic waste as innovation payment. To build a good urban transportation system, good services of quality is a must to be implemented. Therefore, it is necessary to evaluate service quality in a measured, structured, and comprehensive way. SEM (Structural Equation Modeling) will be suited to this problem because it can accommodate the complexity of evaluation models with many constructs and indicators. Besides, SEM can provide results to the core of the research, so that researchers can determine the weight of each indicator. In the end, the researcher can provide accurate recommendations for improving the quality of services. There will be 350 respondents which are then processed through AMOS. A model is built using 28 indicators with 8 independent variables and 1 dependent variable (user satisfaction). Based on the calculation results, it shows that the model has met the assumptions and fit after the first modification was made. The output obtained is that 3 independent variables already had a positive influence on user satisfaction. Meanwhile, 5 other independent variables become input and suggestions for improvement to service providers. The five variables are connectivity, information, time, friendliness, and security.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132709651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Rotary Kiln-Electric Furnace (RKEF) technology is the most commonly known method for processing rich nickel ore because of its effectiveness. Before being smelted in the electric furnace, the ore must be calcinated in the rotary kiln to remove unnecessary impurities. Between these two leading devices, there is an unfailing need for effective calcine transfer system. During WIKA's first ferronickel plant project, the calcine transfer system's design was subcontracted to third parties, resulting in the supply of transfer car, hot charge crane, and hot charge system as a complete mechanical package including instrument & control system. With the three subsystems, three different PLC systems, one for each, were supplied. The presence of these local PLCs significantly decreased the reliability of calcine transfer control system. In WIKA's current ferronickel project, the calcine transfer system is done differently, taking advantage of the first project's extensive experience. The new design of instrument and control system is intended to optimize the use of primary PLC-SCADA system by removing third parties local PLC. In this paper, the current in-house design's reliability is examined and compared to the previous one. The control system architecture diagram of both designs is used to determine their corresponding fault tree model. The analysis focuses on the control system's component reliability. The top event availability values are then quantified using the Boolean algebra of the fault tree model, the failure rate and repair rate data. At the end of the study, with less local PLC, the calcine transfer system's availability is better, and it is even better if the primary PLC-SCADA system handles all the calcine transfer processes.
{"title":"Simplification of the Calcine Transfer Control System Architecture for Ferronickel Projects in System Reliability Assessment","authors":"G. Putra, Bagus Ardiansyah","doi":"10.1145/3468013.3468654","DOIUrl":"https://doi.org/10.1145/3468013.3468654","url":null,"abstract":"The Rotary Kiln-Electric Furnace (RKEF) technology is the most commonly known method for processing rich nickel ore because of its effectiveness. Before being smelted in the electric furnace, the ore must be calcinated in the rotary kiln to remove unnecessary impurities. Between these two leading devices, there is an unfailing need for effective calcine transfer system. During WIKA's first ferronickel plant project, the calcine transfer system's design was subcontracted to third parties, resulting in the supply of transfer car, hot charge crane, and hot charge system as a complete mechanical package including instrument & control system. With the three subsystems, three different PLC systems, one for each, were supplied. The presence of these local PLCs significantly decreased the reliability of calcine transfer control system. In WIKA's current ferronickel project, the calcine transfer system is done differently, taking advantage of the first project's extensive experience. The new design of instrument and control system is intended to optimize the use of primary PLC-SCADA system by removing third parties local PLC. In this paper, the current in-house design's reliability is examined and compared to the previous one. The control system architecture diagram of both designs is used to determine their corresponding fault tree model. The analysis focuses on the control system's component reliability. The top event availability values are then quantified using the Boolean algebra of the fault tree model, the failure rate and repair rate data. At the end of the study, with less local PLC, the calcine transfer system's availability is better, and it is even better if the primary PLC-SCADA system handles all the calcine transfer processes.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":" 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113950592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yogi Yohannes Siburian, Prieta Adriana, Selly Danastri, B. Priyono
∗Java Bali electricity system is the largest electricity system in Indonesia. This becomes the main consideration for strengthening the Java-Bali electricity system so that if a blackout occurs it does not take a long time for system recovery. To meet the large and reliable demand for electricity, Cisokan pumped storage hydropower plant is currently being developed with a capacity of 1040 MW (4 X 260 MW). In this paper, we combine the Pumped Hydroelectric Storage (PHS) with floating photovoltaic + PV Roof Top + PV in empty land with a total capacity of 652 MW. The economic analysis of a combination of Pumped Hydroelectric Storage (PHS) and floating photovoltaic system is calculated using LCOE formula that uses some components, i.e. project and O&M cost of the pumped-storage hydropower plant, PV module, inverter, and installation cost, O&M cost of a PV system, and electricity tariff from PLN grid for industry category (> 200 kVA). The boundary of this study is to calculate Levelized Cost of Energy (LCOE) of Pumped Hydroelectric Storage (PHS) without floating photovoltaic with the result 17.97 Cent $/kWh, LCOE of floating photovoltaic+ PV Roof Top + PV in empty land with the result 4.30 Cent $/kWh, and LCOE of Pumped Hydroelectric Storage (PHS) with floating photovoltaic + PV Roof Top + PV in empty land with the result 16.49 Cent $/kWh. The purpose of this study is to gain the cost efficiency of a combination of Pumped Hydroelectric Storage (PHS) and floating photovoltaic + PV Roof Top + PV in empty land in the Upper Cisokan Pumped Hydroelectric Storage Project with the result of 21.80%.
*爪哇巴厘电力系统是印尼最大的电力系统。这成为加强爪哇-巴厘岛电力系统的主要考虑因素，以便如果发生停电，系统恢复不需要很长时间。为了满足大量可靠的电力需求，Cisokan抽水蓄能水电站目前正在开发，容量为1040兆瓦(4 X 260兆瓦)。本文将抽水蓄能与浮动光伏+屋顶光伏+空地光伏相结合，总容量为652mw。采用LCOE公式计算抽水蓄能电站与浮动光伏系统组合的经济分析，该公式使用抽水蓄能电站、光伏组件、逆变器的工程和运维成本以及安装成本、光伏系统的运维成本、PLN电网的行业级电价(> 200kva)等部分进行计算。本研究的边界是计算不含浮式光伏的抽水蓄能电站的平净能源成本(LCOE)为17.97 Cent $/kWh，浮式光伏+光伏屋顶+空地光伏的平净能源成本(LCOE)为4.30 Cent $/kWh，浮式光伏+光伏屋顶+空地光伏的抽水蓄能电站的平净能源成本(LCOE)为16.49 Cent $/kWh。本研究的目的是在上西索坎抽水蓄能项目中获得抽水蓄能(PHS)与浮动光伏+光伏屋顶+空地光伏相结合的成本效率，结果为21.80%。
{"title":"Economic Analysis of Combination of Pumped Hydroelectric Storage (PHS) and Floating Photovoltaic + PV Roof Top + PV in empty land of Power Plant Area","authors":"Yogi Yohannes Siburian, Prieta Adriana, Selly Danastri, B. Priyono","doi":"10.1145/3468013.3468657","DOIUrl":"https://doi.org/10.1145/3468013.3468657","url":null,"abstract":"∗Java Bali electricity system is the largest electricity system in Indonesia. This becomes the main consideration for strengthening the Java-Bali electricity system so that if a blackout occurs it does not take a long time for system recovery. To meet the large and reliable demand for electricity, Cisokan pumped storage hydropower plant is currently being developed with a capacity of 1040 MW (4 X 260 MW). In this paper, we combine the Pumped Hydroelectric Storage (PHS) with floating photovoltaic + PV Roof Top + PV in empty land with a total capacity of 652 MW. The economic analysis of a combination of Pumped Hydroelectric Storage (PHS) and floating photovoltaic system is calculated using LCOE formula that uses some components, i.e. project and O&M cost of the pumped-storage hydropower plant, PV module, inverter, and installation cost, O&M cost of a PV system, and electricity tariff from PLN grid for industry category (> 200 kVA). The boundary of this study is to calculate Levelized Cost of Energy (LCOE) of Pumped Hydroelectric Storage (PHS) without floating photovoltaic with the result 17.97 Cent $/kWh, LCOE of floating photovoltaic+ PV Roof Top + PV in empty land with the result 4.30 Cent $/kWh, and LCOE of Pumped Hydroelectric Storage (PHS) with floating photovoltaic + PV Roof Top + PV in empty land with the result 16.49 Cent $/kWh. The purpose of this study is to gain the cost efficiency of a combination of Pumped Hydroelectric Storage (PHS) and floating photovoltaic + PV Roof Top + PV in empty land in the Upper Cisokan Pumped Hydroelectric Storage Project with the result of 21.80%.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128449967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
∗Corona virus disease (covid-19) challenge the medical equipment supply in each country. The immediate-increasing demand drives industries to response with production's switching strategy – a temporary production on special needed items. With a 90% dependence on imports of medical equipment, Indonesia makes simplify the operational licensing and commercialization to drive industry to do so the domestic fulfilment also expect to reduce import number in the future. Moreover, the success of production switching is dependent on various factors. This study considers the case of production switching in medical equipment during covid-19 in Indonesia and identifies the critical success factors (CSFs) in its implementation. The CSFs are further validated with a set interviews on experts. The results of this study could be useful in the future for rapid-proper planning and decision making on disaster management also in manufacturing sector to adjust the business in dealing with new circumstances.
{"title":"Identifying Critical Success Factors of Production Switching in Medical Equipment during Covid-19 in Indonesia: A Conceptual Model","authors":"S. Suparlan, R. Ardi","doi":"10.1145/3468013.3468335","DOIUrl":"https://doi.org/10.1145/3468013.3468335","url":null,"abstract":"∗Corona virus disease (covid-19) challenge the medical equipment supply in each country. The immediate-increasing demand drives industries to response with production's switching strategy – a temporary production on special needed items. With a 90% dependence on imports of medical equipment, Indonesia makes simplify the operational licensing and commercialization to drive industry to do so the domestic fulfilment also expect to reduce import number in the future. Moreover, the success of production switching is dependent on various factors. This study considers the case of production switching in medical equipment during covid-19 in Indonesia and identifies the critical success factors (CSFs) in its implementation. The CSFs are further validated with a set interviews on experts. The results of this study could be useful in the future for rapid-proper planning and decision making on disaster management also in manufacturing sector to adjust the business in dealing with new circumstances.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117124795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass customization is flexible and highly responsive manufacturing systems that produce various customized products, various disturbances happen in the mass customization manufacturing process. These conditions mostly cause bullwhip effect on other processes, such as delivery delays, high level of personnel over time, and work-in-progress (WIP) inventories. In this paper, researchers propose a manufacturing execution system (MES) to solve various problems that occur in the implementation of the mass customization production system. MES a real-time shop floor-oriented management information, which could reduce waste in manufacturing processes, which implicated to reduced cycle time, improved product quality, thereafter lead to the success of mass customization production system.
{"title":"Towards Industry 4.0: Manufacturing Execution System (MES) Design for Mass Customization","authors":"Akhmad Zaroq Cahyo Bawono, K. Komarudin","doi":"10.1145/3468013.3468342","DOIUrl":"https://doi.org/10.1145/3468013.3468342","url":null,"abstract":"Mass customization is flexible and highly responsive manufacturing systems that produce various customized products, various disturbances happen in the mass customization manufacturing process. These conditions mostly cause bullwhip effect on other processes, such as delivery delays, high level of personnel over time, and work-in-progress (WIP) inventories. In this paper, researchers propose a manufacturing execution system (MES) to solve various problems that occur in the implementation of the mass customization production system. MES a real-time shop floor-oriented management information, which could reduce waste in manufacturing processes, which implicated to reduced cycle time, improved product quality, thereafter lead to the success of mass customization production system.","PeriodicalId":129225,"journal":{"name":"Proceedings of the 4th Asia Pacific Conference on Research in Industrial and Systems Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114803175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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