Kumpulan Jurnal dan Prosiding Elektronik PPNS (Politeknik Perkapalan Negeri Surabaya - Pusat Penelitian dan Pengabdian Masyarakat, P3M)
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ANALISA TERTUNDANYA BONGKAR MUATAN BATUBARA DI JETTY PLTU MENGGUNAKAN METODE HOUSE OF RISK
Full text linkThis study aims to analyze delays in coal unloading at the PLTU jetty using the House of Risk (HOR) method at PT Adhi Guna Putera. According to company data, in 2024, there were delays in coal unloading every month. This resulted in the company incurring additional operational costs of Rp. 776,000 per hour. In this study, the House of Risk (HOR) method was used to analyze risks and determine risk mitigation strategies. The data collection techniques used in this study were interviews and questionnaires with company experts to determine risk agents and risk events. The results of the House of Risk (HOR) calculations were used to determine the priority of recommended corrective actions to effectively minimize and prevent delays in coal unloading at the Pacitan PLTU jetty. The research results on cargo unloading delays identified 13 risk events, including coal that cannot be unloaded (E1), and 21 risk agents, including coal catching fire during the unloading process (A1). The results of Phase 1 HOR processing, as depicted in the Pareto diagram, identified 13 dominant risk agents with the highest ARP value at A17, 159.84, related to issues with the unloading hopper and conveyor routes. In Phase 2 of the HOR, 19 mitigation actions were identified, with the highest ETD (Effectiveness to Difficulty Ratio of Action) value at PA1 of 857.7, which involves conducting inspections
Pengaruh Stres Kerja, Iklim Kerja, dan Kualitas Tidur Terhadap Hipertensi Awak Kapal Tunda
Full text linkShipping service company is the company that operating in the maritime sector that offer facilities and services for guiding and towing ships. The ships is carry out business activities at the port, so that the working hours of tugboat increase, so that the workload reveived by the tugboat’s crew will also increase. Based on the company’s fit to work data in 2023, 68% of tugboat’s crew suffer from stage 1 of hypertension, which shows the higest number compared to other hypertension classifications. Hypertension in tugboat’s crew can be caused by a busy schedule in a lot of load being received, conditions around the work area and the lifestyle of the tugboat’s crew. The purpose of this study is to determine the effect of work stres, work climate, and sleep quality on hypertension in tugboat’s crew in shipping service company. The method used id ordinal logistic regression analysis by carrying out simultaneous test, wald test, godness of fit test, and odds ratio using the Statistical Package for the Social Science (SPSS) software. This research used a sample of 100 tugboat’s crew. The result of the study showed that work stres (p-value=0,000), work climate (p-value=0,000), and sleep quality (p-value=0,002) had a significant effect on hypertension in tugboat’s crew of shipping service company. Recommendations that can be given is setting work hours and rest hours of tugboat’s crew, and holding a health talk program with the theme “The Dangers of Hypertension for Seaferers”
Analisis Kecelakaan Kerja pada Pekerjaan Pengelasan di Ketinggian Menggunakan Metode HFACS dan FTA
Full text linkWork at a tank manufacturing company is a type of work that has the potential to be dangerous, so there is a high risk. This is stated in the company\u27s Hazard Identification and Risk Assessment (IBPR) data form. From accident data for 2022-2023, 9 work accidents were recorded, some of which occurred repeatedly. This research was carried out with the aim of analyzing and improving the accident analysis system carried out in the company, so as to obtain the basic causes that cause an accident to occur and can provide appropriate control recommendations from the results of this analysis. Based on observations made in the field and from accident reports, it was found that human factors were the cause of the accident. With the problems that occurred, researchers chose the HFACS and FTA methods. The HFACS method was chosen because it has one advantage, namely that it can analyze accidents caused by human factors. Meanwhile, the FTA method was chosen because it can encourage optimization in terms of control so that work accidents that have occurred can be prevented from happening again in the future. Based on the classification of the HFACS method, the causal factors were obtained, namely the sub-criteria of routine, adverse mental state, and resource management. Analysis of these factors using FTA was carried out, the basic causes were found to be workers\u27 unfit conditions, demands for delivery deadlines that required overtime, limited amounts of PPE, lack of supervision while working, and lack of socialization regarding PPE. From this analysis, appropriate recommendations were obtained, namely using PPE appropriate to the work being carried out, checking body condition before work, carrying out work according to SOP, and carrying out safety briefings and safety patrols
Pengaruh Beban Kerja Fisik, Lingkungan Kerja, Usia, Masa Kerja dan Kualitas Tidur terhadap Kelelahan Kerja pada Pekerjaan Packing, Langsir dan Input X-ray di Industri Makanan Gresik
Full text linkAbstract— The Gresik food industry is one of the industries in Indonesia that produces snacks such as wafers, biscuits, and beverages. Thousands of workers strive to continuously improve the quality of the products. The high production demands that must meet daily targets result in work fatigue experienced by employees. This study aims to analyze the effects of physical workload, work environment (noise and work climate), and individual factors (age, length of service, and sleep quality) on employee work fatigue in the Gresik food industry. Objective measurement of work fatigue was conducted using a reaction timer. The method used in this study is ordinal logistic regression. The results of the ordinal logistic regression test show that there are four factors affecting work fatigue: physical workload (p-value = 0.11), noise (p-value = 0.004), age (p-value = 0.008), and sleep quality (p-value = 0.001). Work fatigue is more frequent among employees with excessive physical workload, employees in high noise areas, older employees, and employees with poor sleep quality. Recommendations that can be given include installing noise dampers on production machines that are the source of noise, conducting training or socialization on the importance of occupational health, job rotation, providing adequate rest, implementing appropriate shift work distribution, educating on the importance of sleep quality, socializing the implementation of stretching movements during work breaks, and providing personal protective equipment (PPE) such as ear plugs.
Keywords: work farigue, physical workload, work environment, sleep qualily, reaction time
Studi Numerik Dispersi Debu untuk Mengidentifikasi Potensi Dust Explosion di Warehouse Biomassa
Full text linkBiomass is a renewable energy source that is environmentally friendly and can replace the use of fossil fuel energy sources. One of the biomasses that is currently widely used is rice husks as biomass boiler fuel. However, the use of rice husks as fuel also poses a number of challenges such as the risk of dust explosions which can occur due to the presence of rice husk dust suspended in the air and finding an ignition source. The aim of this research is to simulate the dispersion of dust concentrations suspended in warehouse biomass so that it can be known which areas are at risk of dust explosions so that preventive measures can be taken. Computational Fluid Dynamics (CFD) numerical studies were carried out using OpenFOAM software to model the distribution of dust concentration in the warehouse by considering various important parameters such as air flow velocity, dust particle size distribution, and dust emission sources originating from moving floors. The research results show that there are areas with high dust concentrations, especially in the area around the right side of the moving floor with a dust concentration of around 56-198 g/m3 which meets the Minimum Explosive Concentration (MEC), thereby creating a risk of dust explosions
Pengaruh Jarak Monitor, Durasi Istirahat, Penggunaan Kacamata terhadap Keluhan Kelelahan Mata pada Karyawan Perusahaan Jasa Tenaga Kerja
Full text linkEmployees of labor service companies have the potential to get eye strain because almost all work activities use computers or laptops. The results of the measurement on employees of labor service companies using a reaction timer tool were obtained by employees who experienced complaints of eye fatigue by 77.5% of 40 respondents. This study aims to identify complaints of eye fatigue in labor service companies that affect individual factors. Individual factors are in the form of monitor distance, rest duration, and glasses use. Data collection in this study was carried out by taking measurements using a sewing meter and distributing questionnaires. Complaints of eye fatigue were identified using a reaction timer. The method used to determine the influence test between variables uses an ordinal logistic regression test. The factor that affects eye fatigue complaints is the use of glasses (p-value = 0.001). As for the factors that did not affect the monitor distance (p-value = 0.310) and rest duration (p-value = 0.559). Recommendations that can be given include socialization on the prevention of eye fatigue complaints, making posters to prevent eye fatigue complaints, and the use of anti-radiation glasses when doing work
Perancangan Ulang Tata Letak Fasilitas Dengan Metode Blocplan Pada CV. Anugrah Masruroh Teknik
Full text linkIn a company, the arrangement of machinery and equipment affects production activities, especially the effectiveness of the production process time and the fatigue experienced by operators on the production floor. A good layout is a layout that is arranged based on the flow pattern of materials and equipment that is regular and effective. Based on observations made at CV. Anugrah Masruroh Teknik, the problem in this business is the placement of facilities that hinder the process of moving materials. The location of receiving materials inhibits the process of moving materials from one machine to another. This study aims to obtain a better layout to minimize the distance or minimize the distance of movement between production stations. The method used in this research is BLOCPLAN (Block Layout Overview with Computerized Planning Using Logic and Algorithms). The resulting 5 alternative layouts can be made which are then selected to determine the most efficient alternative layout based on the smallest material handling costs. The results showed an alternative layout resulting from the BLOCPLAN method with a minimization of the distance between facilities of around 68.5% and a reduction in material handling costs of around 68.3% of the actual layout. The redesign of the production facility layout of CV Anugrah Masruroh Teknik is considered effective using the BLOCPLAN method
Analisis Risiko Kegagalan Proyek Coating Oil Tank pada Perusahaan Fabrikasi-Konstruksi dengan Metode FMEA (Failure Mode and Effect Analysis)
Full text linkThe fabrication-construction industry in Indonesia continues to grow rapidly, including in the Coating Oil Tank project undertaken by a company in Gresik, East Java. This project involves the welding of Steam Coil Pipes, which play a crucial role in maintaining the fluid temperature inside the tank. However, significant delays occurred due to welding defects such as incomplete penetration and porosity, detected through Radiography Tests. This study aims to identify potential failures in this project using the Failure Mode and Effect Analysis (FMEA) method and provide improvement recommendations based on priority levels. Failure risks were identified through interviews with relevant parties and a questionnaire filled out by experts, which were then analyzed based on categories of internal, external, human, and system risks. Each risk was assessed based on severity, occurrence, and detection to calculate the Risk Priority Number (RPN). The results revealed that system failure had the highest RPN at 666.19, while welding defects such as incomplete penetration and porosity had RPNs of 464.30 and 485.84, respectively. Recommendations to mitigate these risks include retraining operators, improving inspection quality, and adopting better welding techniques. This study\u27s findings are expected to improve project performance and minimize similar failures in future projects
Analisis Kandungan Logam Berat Dalam Paving Block menggunakan Lumpur Lapindo sebagai Pozzolan
Full text linkBencana semburan lumpur Lapindo di Sidoarjo yang masih berlangsung hingga kini telah menghasilkan limbah lumpur panas yang dialirkan ke Sungai Porong. Lumpur Lapindo mengandung silika, alumina, besi, tembaga, serta logam berat. Lumpur Lapindo mengandung logam berat yang sangat tinggi (Zn:1.000ppm, Ni:400ppm, Cr:1.000ppm, Cu:1.400ppm). Pemanfaatan lumpur Lapindo ini dapat menggunakan metode solidifikasi menjadi paving block. Penelitian ini bertujuan mengevaluasi pemanfaatan lumpur Lapindo sebagai pozzoland dalam pembuatan paving block, dengan penambahan fly ash sebagai pengganti sebagian semen terhadap uji TCLP. Penelitian ini menggunakan 8% lumpur Lapindo sebagai material pozzolan dan 2% fly ash sebagai pengganti sebagian semen portland. Metode perawatan yang digunakan adalah penutup basah karung goni. Paving block dilakukan uji TCLP logam berat (Zn:0,747, Ni:0,034, Ba:0,079, Cr:0,031, Cu:0,079) ppm. Penggunaan lumpur Lapindo dan fly ash membantu mengurangi Tingkat pencemaran lingkungan
Model Circular Economy: Pengolahan Limbah Peternakan Sapi Potong Menjadi Batu Batako dan Energi Terbarukan di Jawa Timur
Full text linkPenduduk jawa timur mayoritas bermata pencaharian di sektor pertanian dan peternakan, namun potensi daerah Jawa Timur, belum mampu memanfaatkanlimbah kotoran ternak secara optimal sehingga mencemari lingkungan melalui emisi amonia (NH₃) dan metana (CH₄) yang berkontribusi terhadap pemanasan global serta pencemaran lingkugan. Penelitian ini akan membahas terkait pemanfaatan kotoran sapi dan limbah sisa pakan yang memiliki potensi sebagai bahan baku material bangunan dan energi terbarukan. Tujuan penelitian untuk merancang inovasi pengolahan kotoran sapi menjadi batu bata yang berasal dari kotoran sapi, cangkang telur, dan sekam padi. Penelitian ini juga akan menganalisis potensi kotoran sapi menjadi biogas. Metode yang digunakan berupa eksperimen pembuatan batako dengan menganalisis kandungan silika dan kalsium karbonat serta uji kuat tekan, ditambah kajian literatur untuk menganalisis potensi biogas. Hasil menunjukkan kotoran sapi mengandung silika 9,6% per kg, sekam padi 87–94% silika, dan cangkang telur 94% kalsium karbonat sehingga menghasilkan batako ringan, tahan api, dan memiliki mutu yang setara dengan batako konvensional. Selain itu, kotoran sapi berpotensi diolah melalui digesti anaerob menjadi biogas yang dapat dimanfaatkan sebagai bahan bakar untuk memasak. Pemanfaatan ganda limbah peternakan melalui batu bata dan biogas mendukung konsep ekonomi sirkular di masyarakat pedesaaan, mengurangi pencemaran, serta meningkatkan nilai ekonomi dan kemandirian energi masyarakat pedesaan