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Kab. aceh selatan,
Aceh
INDONESIA
Jurnal Inotera
Published by Politeknik Aceh Selatan
ISSN : 25487574     EISSN : 25811274     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Arjuna Subject : -
Articles 301 Documents
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Study of Energetic Materials of Double Base Propellant for Small Caliber Ammunition Khevinadya Ramadhani Runtu; Leni Tria Melati; Igara Triregina; Gathut Imam Gunadi; Prita Nur Wahyu; Ice Fahmi; Nanang Hary Soebakgijo; Mas Ayu Elita Hafizah; Yayat Ruyat
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID205

Abstract

Double Base Propellants (DBP) has been frequently utilized in the fields of rocket propellant and gun propellant. DBP has various advantages over conventional propellants, including easy formulation, high energy, and smokelessness. The research conducted in literature studies was applied by referring to the various energetic materials for DBP. The composition of a DBP consists of energetic raw material of Nitrocellulose (NC) and Nitroglycerin (NG). According to data analysis, NC can be manufactured from the raw material Nata de Coco, which has a nitrogen content of more than 12,5% in NC, which is in line with the levels of conventional military and propellant raw materials. Meanwhile, SMX (1,4-dinitrate-2,3-dinitro-2,3bis (nitratomethylene) butane) or GAP (Glycidyl Azide Polymer) on double-base propellants is suggested as potential alternative energy sources that can be utilized to substitute NG. The choice of new energetic material is influenced by the fact that Nata de Coco is abundant in Indonesia, while SMX and GAP in terms of manufacturing and handling are safety. The several parameters to characterize double-base propellants include thermal analysis, microstructure, surface area, burning rate value, and gaseous product. The results of thermal properties by DSC analysis on a DBP based on NC+NG+TiO2-trifluoroacrylate showed a change in exothermic decomposition at a temperature of 199.2oC. Meanwhile, TGA analysis of a DBP based on NC+NG+GAP showed mass decomposition at temperature 199,3oC. Furthermore, it was found that thermoplastic elastomers GAP have a significant effect on increasing the low-temperature mechanical properties of double-base propellants. As a result, the literature studies approach, which includes consideration of alternative energetic raw materials and characterization for double-base propellants, is the recommendation for obtaining superior performance double-base propellants with energetic materials.
Analysis of Operators Physical and Mental Workload at Thresher Station at PT. Beurata Subur Persada (Bsp) Nagan Raya Said Al Ahsan; Nissa Prasanti
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID206

Abstract

PT Beurata Subur Persada (BSP) is a company engaged in processing Fresh Fruit Bunches (FFB) into Crude Palm Oil (CPO) located in Nagan Raya District, Aceh Province. In carrying out the production process, the thresher station is one of the stations in the factory that functions as a machine that ejects fruit from the stage of the jongkos (palm stalk) by slamming the FFB into the thresher drum successively. However, based on initial observations, it is known that the BSP operator who controls the thresher machine also controls other machines, so this increases the physical and mental workload of the operators. The purpose of this study was to analyze the physical workload and mental workload of station operators using the %CVL method and the NASA-TLX method which are influenced by the subjectivity of the operators. The results of the study found that there were 2 operators who experienced rather high physical workloads, while the other 2 operators experienced moderate physical workloads. While measuring the mental workload it is known that all operators are in the moderate category.
Maintenance Analysis of Sterilizer Machine Treatment at PT. Karya Tanah Subur (KTS) Using the Overall Equipment Effectiveness (OEE) Method Ahmad Rizal; T.M Azis Pandria
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID207

Abstract

PT. Karya Tanah Subur (KTS) is a company engaged in the oil palm plantation and processing business located in Padang Sikabu Village, Kaway XVI sub-district, Aceh Barat Regency. The resulting production is crude palm oil CPO (Crude Palm Oil) or crude palm oil Palm Kernel (PK) and shells. In processing crude palm oil, the Boiling Station (sterilizer) is one of the most important machines, because if the sterillizer machine is damaged it will affect the production process of the factory. The purpose of this study was to analyze the performance of the sterilizer using the Overall Equipment Effectiveness (OEE) method by calculating the average Avaibility, Performance Efficiency, Rate Of Quality, and OEE values ​​from the performance of the sterilizer so that maintenance actions can be determined. Based on the analysis results, the average Availability is around 58.44%, Performance Efficiency is 80.77%, Rate Of Quality is 100% and the average OEE value on the Sterillizer machine is 46.43%, with these values ​​when compared to the international standards then it will be a fairly high difference..
Identification of Screw Press Machine Malfunctions in PT. Ujong Neubok Dalam (UND) Using Failure Mode and Effect Analysis (FMEA) Havid Maulana; T.M Aziz Pandria
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID213

Abstract

PT. Ujong Neubok Dalam (UND) is a company engaged in the business of plantation and processing of palm oil, the processing of palm oil into palm oil is carried out using a screw press. Screw press is a very important machine in processing palm oil into Crude Palm Oil (CPO), if the screw press has problems then the production process does not run smoothly. This study was conducted to identify damage and repairs to the working tools of the Screw Press machine. In the study using the Failure Mode Effect and Analysis (FMEA) method, which aims to identify risks in advance to take preventive measures. Based on the results of the study, there are 6 risks of failure in the Screw Press machine, with the component that has the highest result, namely the Screw of 108 and the component that has the smallest value, namely the Protection Hut, which is 12. From these results, it can be concluded that the Screw component is a priority or priority in making improvements.
Tinjauan Taufik Budi Cahyana; Achmad Wardana; Hudoro Tahdi; Y.H. Yogaswara
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID196

Abstract

Indonesia's decision in the procurement of the 4.5th generation Rafale fighter jets was agreed to replace the obsolete aircraft Hawk 109/209 and grounded F-5. The selection of Rafale was not only based on the defense relationship between Indonesia and France that had existed for a very long time but also based on the foreign policy adopted by Indonesia. The free and active foreign policy is shown by several defense equipment owned by Indonesia, not only from a particular country. The government's considerations in choosing the Rafale to strengthen the TNI and cooperation in the defense sector with France include: Advantages of the Rafale Fighter Jet, Long-Term Investment in Indonesian Alutsista, Development of Defense Industry Cooperation, Budget Efficiency, Aspects of Defense and Political Strategy, and Free Guarantee from CAATSA Sanctions. In this case, it is expected that Indonesia will not rely on the procurement of defense equipment from abroad, and the implementation of the Transfer of Technology, Local Content and Offsets on Rafale fighter jets can run as expected, therefore a strategy is needed in accelerating defense acquisition, where there are three strategies for technological development and the defense industry to improve significantly.
Measurement of Employee Workload at the Loading Ramp Station Using the CVL (Cardiovascular Load) Method at PT. Socfindo Seunagan Defrizan Pahlepi; Khairul Hadi
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID212

Abstract

PT. Socfindo is a company that has many employees, should pay more attention to how much workload is given to its employees so they can carry out their work optimally. Workload that can be measured on employees includes physical workload and mental workload. The measurement method used is the Cardiovascular Load (CVL) for physical workload. Cardiovascular load is a method to determine the level of work fatigue. Data collection for physical workload was carried out by measuring the pulse using the 10 pulse method, and determining the %CVL results. The average working heart rate/minute for employee A is 105 while employee B's average working heart rate/minute is 106, based on the results of the calculation analysis for %CVL between 34% - 36%, so that the risk of work fatigue occurs and is in the moderate category. It can be concluded that the workload of employees needs improvement so that work fatigue does not occur so there is no risk of injury to the employee's body parts.
Kajian Potensi Refuse Derived Fuel (RDF) di Tempat Pembuangan Akhir (TPA) Cipayung untuk Memenuhi Baku Mutu Industri dan Ramah Lingkungan Gathut Imam Gunadi; Taufik Nur Isman; Ridwan Alawi; Alvian Hadinata Tambunan; Prawoto; Eka Maulana
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID217

Abstract

The increased demand for energy is impacted by the growing population. As a result, new energy sources must be developed to replace the diminishing supplies. Waste to Energy (WTE) is a concept that can be used as an alternative to recycling waste into raw materials for Refuse Derived Fuel (RDF). Due to their combustibility, inorganic waste and plastic have the potential to be employed as source materials for RDF. In light of this discussion, RDF is required for both domestic and commercial purposes. chosen by classifying the garbage into different sizes and types. In order to demonstrate the huge potential for RDF treatment of active zone waste at the Cipayung Final Disposal Site (TPA), research has been conducted on the potential of RDF that meets industry standards and is environmentally friendly. From the analysis of available data, it is found that without using plastic and rubber waste, the calorific value of the RDF produced meets the required industry standards.
Barcode-Based Light Fire Extinguisher (APAR) Monitoring with the Waterfall Case Study Method of PT. PLN (Persero) UPK Nagan Raya Hasanusi Pane; Gaustama Putra
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID218

Abstract

Light Fire Extinguishers (APAR) play a very important role in a company, this aims to prevent and overcome in the event of a fire. The development of technology for equipment inspection has now begun to use digital methods including using android applications and barcodes to facilitate the fire extinguisher inspection process. In this study, it uses the waterfall method, which is a technical model in software development, where a project will be detailed sequentially. Based on the results of research, a method of monitoring the fire extinguisher using androite-based barcodes that can be accessed through the internet network anytime and anywhere. This barcode-based monitoring method can minimize officer errors in writing data on the results of checking the fire extinguisher, searching for data on the results of the fire extinguisher check and can be viewed and accessed easily. Barcodes have been affixed to each fire extinguisher and the barcode has been designed complete with a description of the state of the fire extinguisher in it, including the type of fire extinguisher, weight, name of the officer, expiret, type. It can be concluded by using this method the quality of the resulting system will be better because its implementation is carried out gradually or sequentially.
Analysis of Noise Levels in the Engine Room & St. Kernel Using the National Institute for Occupational Safety and Health (NIOSH) Method in PT. Karya Tanah Subur Agus Samsul Fata; Gaustama Putra
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID214

Abstract

Industry in Indonesia began to show progress and improvement marked by the use of sophisticated machines, almost all production processes in the industry caused noise. Noise can cause damage to hearing devices and cause psychological, physiological disorders that have the potential to cause disruption to work so as to reduce work productivity. PT. Karya Tanah Subur (KTS) is a company engaged in the business of plantation and processing of palm oil, the products produced in the form of crude palm oil (CPO) and kernels. The purpose of this study was to measure the level of noise that occurred in several PT operator rooms. The work of Fertile Land (KTS) which is directly adjacent to the machines that make noise. Then conduct a maximum time analysis of workers exposed to the noise generated based on the NIOSH calculation method. Selected noise sampling is the Engine Room Station (Turbine, Genset) and Kernel Station using the Sound level meter tool. From the results of this study, it shows that both points exceed the Threshold Value (NAB). The longest exposure time is at point 2 with a length of exposure time of 9 hours, while the shortest exposure time is at point 1 with a length of exposure time of 1.2 hours per day. In locations that have a risky noise intensity level, you should use earplugs/earmuffs to minimize the level of noise intensity and other supporting PPE for worker health and safety.
Riplle Mill Machine Failure Analysis Using the Failure Mode and Effect Analysis (FMEA) Method at PT. Ujong Neubok In Jayarullah; Rita Hartati
Jurnal Inotera Vol. 8 No. 1 (2023): January-June 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss1.2023.ID219

Abstract

Palm oil is a plantation crop of high economic value and is one of the crops producing vegetable oil and various other derivative products. Palm oil processing is one of the factors that determine the business productivity of a palm oil mill. The smoothness of the production process is greatly influenced by the reliability of the machines used. The Ripple Mill machine is a meisn that serves as a seed breaker to separate the shell from the palm kernel. This study aims to identify failures that occur in the Ripple Mill engine. This research uses the Failure Mode and Effect Analysis (FMEA) method, which is to find out and observe whether the failure rate can be analyzed or measured so as to minimize the damage / failure. Based on the results of the study, there are 5 failure risks that occur in the Ripple Mill engine with the component that has the highest value is the V-Belt, which is 294 RPN, while the one with the lowest value is the Ripple Plate Pipe with a Risk Priority Number value of 60 RPN.

Page 13 of 31 | Total Record : 301

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