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Nizwardi Jalinus
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Program Studi Pendidikan Teknologi dan Kejuruan Pascasarjana Universitas Negeri Padang Jln. Prof. Dr. Hamka Air Tawar Padang Sumatera Barat - 25132
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Jurnal Pendidikan Teknologi dan Kejuruan
ISSN : 26213273     EISSN : 26211548     DOI : https://doi.org/10.24036/jptk
Aims and scope: Aims Jurnal Pendidikan Teknologi Kejuruan aims to present high-quality and relevant scientific articles in the form of original research results in the field of Technical and Vocational Education and Training. By showcasing the latest teaching techniques, effective instructional methods, and recent advancements in relevant technologies, this journal provides a significant contribution to the enhancement of superior vocational education and engineering development. The journal strives to become a reliable reference source for researchers, academics, and practitioners worldwide. All articles published undergo a rigorous process of selection and peer review, ensuring that the information presented in this journal maintains a high level of credibility. Scope The scope of research in the field of Technical and Vocational Education and Training (TVET) encompasses a wide range of topics related to the education and training provided for various technical and vocational skills. This field involves the study and improvement of educational programs, training methodologies, and strategies that prepare individuals for specific careers and industries. The scope of TVET research includes, but is not limited to, the following areas: Curriculum Development: Research focuses on designing and updating curricula that align with industry needs, technological advancements, and job market demands. Teaching and Learning Methods: Studies explore effective pedagogical approaches, instructional techniques, and innovative technologies that enhance the teaching and learning experience in vocational settings. Technology Media: Leveraging these technology media resources can enhance the vocational education experience by providing diverse learning materials, facilitating collaboration, and keeping learners informed about the latest developments in their chosen field. (Online Courses and Platforms, YouTube Channels and Tutorials, Podcasts, Tech Blogs and Websites, Interactive Learning Platforms, Educational Apps, Virtual Reality (VR) and Augmented Reality (AR), Webinars and Online Events, Social Media Communities, and E-books and Digital Publications) Workforce Development: Research examines strategies to bridge the gap between education and the workforce, ensuring graduates possess the skills and competencies required by industries. Skill Assessment and Certification: Investigations into valid and reliable methods for assessing vocational skills, as well as the development of certification standards that validate individuals' proficiency. Industry-University Collaboration: Studies analyze partnerships between educational institutions and industries to ensure that educational programs remain up-to-date and relevant. Apprenticeships and Internships: Research into structured on-the-job training experiences that allow students to acquire practical skills and experience real work environments. Lifelong Learning and Continuing Education: Exploration of strategies for ongoing skills development and training for individuals to adapt to changing job market requirements. Gender Equality and Inclusivity: Investigations into promoting gender-balanced participation and inclusivity in traditionally male-dominated vocational fields. Technological Advancements: Research on the integration of emerging technologies, such as digital tools and Industry 4.0 concepts, into vocational training programs. Quality Assurance: Studies on mechanisms to ensure the quality of vocational education and training programs, including accreditation and evaluation processes. Policy and Governance: Examination of policies and regulations that shape TVET systems and their effectiveness in promoting skill development and employability. Socio Economic Impact: Research into the influence of TVET on economic growth, social mobility, and addressing unemployment challenges. Engineering (miscellaneous) encompasses a diverse range of topics that contribute to the advancement and application of engineering principles across various disciplines, providing valuable learning opportunities in vocational education. Overall, research in the field of TVET contributes to improving the quality and relevance of vocational education, addressing skills gaps, and fostering the successful transition of individuals into the workforce, thereby promoting economic development and societal well-being.
Arjuna Subject : Umum - Umum
Articles 13 Documents
Search results for , issue "Vol 6 No 2 (2023): Regular Issue" : 13 Documents clear
Optimization and Short-Circuit Analysis of Photovoltaic Penetration in Off-grid System – A Case Study in Newmont Suriname Gold Mine Alpha Agustinus; Budi Sudiarto
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32023

Abstract

Mining companies are highly dependent on fossil fuels to meet their electricity needs and mining activities such as the use of heavy equipment. Therefore, the greenhouse gas emissions due to burning of fossil fuels have become a major issue related to the impact on the environment due to mining activities. Renewable energy such as Photovoltaic (PV) can be an alternative solution to overcome this problem. This study aims to examine the optimal penetration of Photovoltaic (PV) at Processing Plant Newmont Suriname gold mine. HOMER software is used to design the most optimal Photovoltaic (PV) penetration. ETAP software is used for technical validation through load flow and short-circuit analysis Keywords: Hybrid Power Plant, HOMER, ETAP, NPC, COE, Short-circuit
Economic Analysis of Variable Speed Drive Control Through Profinet Technology on Distributed Control System: A Case Study in Essential Oil Processing Factories Adhipa Tri Setyawan Alim; Budi Sudiarto
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32123

Abstract

Electrical equipment in essential oil processing plants is generally dominated by electric motor loads. In today's digital era, global competition and technological advances encourage factories to increase the efficiency and reliability of their production equipment. One way of efficiency is to use a variable speed drive (VSD). The existence of Profinet technology as a network protocol between the control equipment and the VSD allows users to increase system reliability while increasing energy use efficiency. Even so, there are still many factories that are hesitant to use this technology in their automation systems. Many low to medium-sized factories still use traditional control methods such as hardwired. This method is considered more reliable, and inexpensive compared to using Profinet technology. Cost-benefit analysis is carried out to prove this paradigm. At the same time provides certainty that the investment costs incurred in building the system provide added value for production equipment. From this research, it is proven that the use of Profinet technology in addition to providing savings on investment costs also provides benefits from a technical perspective. This technology also allows the implementation of condition-based monitoring systems for electric motors in production equipment. Which in turn can increase the performance and service life of the machine.
Stakeholder Opinions of The Students' Abilities During the Research Internship Program Ita Fatkhur Romadhoni; I Wayan Susila; Tri Rijanto; Mauren Miranti; Dindy Sinta Megasari
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32223

Abstract

Recently, there has been a gap between the skills needed by industry and learning materials in schools that still need to meet expectations. Research internship programs (RIP) viewing as a link that can eliminate these disparities. However, there is no conclusive proof of the learning results of the program. This study seeks to dig deeper into information based on a stakeholder's point of view on the quality of skills demonstrated by students in research internship programs. This research is qualitative. The case study method approach analyzes phenomena in the workplace according to assessment reporting in terms of stakeholder perceptions. Research informants consist of primary, supporting, and critical stakeholders. This paper uses triangulation techniques to reduce data, present data, and draw conclusions. The results of this study indicate that students' readiness and skills affect hard-skill performance but do not significantly affect the results of the research conducted. Stakeholder perception states that schools need more time to be ready to implement research internships based on Ministerial Decree Number 123/M/KPT/2019.
Effect of PLTS Power Factor Settings on Power Losses and Voltage Conditions in 20 kV Medium Voltage Networks Resti Savira; Budi Sudiarto
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32523

Abstract

As technology develops, the rapid increase in PV capacity will affect the grid. This makes it important to determine the PV limit that can be injected into the grid defined as the PV Hosting Capacity (PVHC). In this paper, the author evaluates and analyses the impact of PV connections on medium voltage distribution lines (20kv) using ETAP 19.01 simulation. A medium voltage Grid with a capacity of 30MVA, has an industrial load varies from 650 kVA to 25 kVA with the total load capacity of 2225 KVA. The loads are supplied from two sources, grid and PV system. The simulation results state that the best of grid performance which provide the best losses and voltage condition when connecting 100% capacity of PV to the existing grid network is by setting the inverter power factor to 0.9. This setting will provide lowest power losses of 0,7 kW and improve the voltage value.
Distribution System Dewatering in Coal Mining at PIT Sena Sungai Lilin District, Musi Banyuasin Regency, South Sumatra Province Heri Prabowo; Wahyudi Wahyudi; Rolitu Rolitu
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32623

Abstract

The purpose of this research is to calculate the total design discharge of water entering the mining site in the sena pit of PT Putra Muba Coal (PMC), design the appropriate shape and dimensions of the sump to accommodate the amount of water entering the mining site and calculate the number of pumps needed to remove water entering the mine to the settling pond. The source of water entering the mine area comes from rainwater entering the mine opening, water runoff from the rainwater catchment area in the area around the mine opening, and groundwater rise. Based on the results of the analysis of rainfall data for 2013-2022, a rainfall plan of 77, 225 mm/day, rainfall intensity of 9.714 mm/hour with a rainfall return period of 2 years was obtained. The rainfall catchment area at the research site is 72,936 m2 with a discharge generated of 0.03 m3 / second and groundwater discharge of 0.00812 m3 / second. To remove the water entering the mine, it is flowed naturally into the sump with dimensions of 50 m length, 14 m top width, 13 m bottom width, and 5 m depth. The dimensions of the open channel are planned with a channel width of 32 cm, a flow depth of 28 cm, a wet cross-sectional area of 13.6 cm2, a wet circumference of 97 cm, a hydraulic radius of 9.25 cm, and a channel length of 233m. The water in the sump is pumped into an open channel. The pump used has a maximum discharge of 150 m3 / hour and a total pump head of 11.8712 m with a pipe diameter of 6 inches.
Analysis of Technical and Economics Overhead Transmission Line 150 kV Construction from Mine Mouth Coal Fired Power Plant to External Customer Substation Elpatra Hadi; Rudy Setiabudy
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32723

Abstract

Mine Mouth Steam Coal Fired Power Plant (PLTU) has a capacity of 2x18MW while the power supplied to internal consumers is 3.6MW or around 10% of the total generating capacity (20% of one generating unit). To operate according to its specifications, the load is increased by operating the load bank. The small internal load and use of the loadbank cause the cost of generation to be high. Excess generating capacity can be sold to external consumers outside the mining area, so it is necessary to build one circuit overhead transmission line 150kV as long 48.38km. The construction of overhead transmission line 150kV from the PLTU to the external consumer substation can increase sales of electricity and can replace the loadbank function. This study aims to evaluate the technical feasibility and economic aspects of the construction overhead transmission line 150kV from the PLTU to an external consumer substation. The research method uses financial indicators IRR, NPV and ROI. Overall, the construction of one circuit overhead transmission line 150kV can increase sales of electricity and replace the function of load bank. The NPV value is IDR 1,604,887,094 with an IRR of 12.53%, and ROI of 9.03 years.
Economic Analysis of Solar Photovoltaic Power Plant Planning at Taman Melati Depok Apartment Roma Dhona; Rinaldy Dalimi
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.32823

Abstract

Currently, Indonesia is still using fossil fuel power plants. The high use of fossil fuels will harm the environment, therefore to reduce the use of fossil fuels, it is necessary to develop renewable energy power plants, one of which is a solar photovoltaic power plant. This study discusses the economic analysis of planning a soalr photovoltaic power plant at the Taman Melati Depok Apartment which is connected to the PLN network with the PVsyst software. This PLTS plan will be built on the roof of the apartment using an area of 437 m2 with generated power of 90,400 Wp. Using solar modules with a capacity of 565 Wp as many as 160 modules. This PLTS can generate electricity per year 116600 kWh/year. The Cost of Energy (COE) for this PLTS is Rp.735.39/kWh. Economic analysis uses Net Present Value (NPV), Profitability Index (PI), and Discounted Payback Period (DPP) to determine whether this PLTS is feasible or not. Based on the calculation result, the NPV value is Rp. 608,793,939.29, while the PI value is 1.587 and the DPP value is around 12 years and 9 months, which is faster than the project age, which is 30 years. Thus the investment in the Taman Melati Apartment PLTS project is feasible to continue.
Development Interactive Video Media Using Study Strategies Groups for Facial Skin Care Learning not Problems Beauty Cosmetology SMK Negeri 3 Pematang Siantar Asrah Rezki Fauzani; Dina Ampera
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.33023

Abstract

Education in Indonesia is constantly evolving. This condition presents a challenge for learning, particularly in the realm of educationwhich functions to provide certain knowledge, insights, skills and expertise. To introduce an innovative teaching paradigm, it is necessary to develop teaching methods and media. In order to achieve innovative teaching goals, educators must have instructional media as a supporting tool or method for conveying material, so as to motivate students and enhance their learning. One of the media that can support the learning process by using visual media as an interactive learning medium is learning videos. The purpose of this learning is to develop and test the feasibility of a valid instructional media video on the No Problem Facial Skin Care competency. The objects of this research inlcude material experts, media experts and students of SMK Negeri 3 Pematang Siantar. The research method is developed by utilizing the R&D (Research & Development). Data collection was carried out using a questionnaire. The research results for the material expert validity test yielded a score of 92.53 percent, while media experts scored 89 percent, and it was determined that the use of interactive video learning media improved student learning outcomes. According to experts, learning video media is ideally suited for use as learning media competencies in No Problem Facial Skin Care.
Analysis of Air Pollution Distribution in West Pasaman Regency Effects of Palm Oil Mills Herri Yosenov; Vera Surtia Bachtiar; Zulkarnaini Zulkarnaini
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.33323

Abstract

The purpose of this research was to identify sources of pollution and analyze the level of pollution for the parameters of TSP (Dust), particulates, NO2, and SO2 and to map their distribution. The research was conducted at 9 (nine) palm oil mills spread throughout West Pasaman Regency. The data used are primary and secondary data. The primary data includes particulates, TSP, SO2, and NO2 gases. Secondary data consists of test results data at the Environmental Service in 2017, morphological data, and factory location maps. Data processing methods include statistical analysis of Shapiro Wilk. Then proceed with descriptive analysis to determine the characteristics of the range of minimum and maximum values of air pollution distribution. Spatial analysis of the overlay type was carried out using a GIS application. Particulate, TSP, NO2 and SO2 test results at each location have met the required air quality standards. mapping the distribution of air pollutants for the parameters TSP (Dust), NO2 and SO2 with the direction of their spread according to the wind direction. Comparison with the latest regulations, namely PP Number 22 of 2021 Appendix VII, shows that the test results are still below the set quality standards. With the test values obtained and the meteorological factors in each company, it shows that there is no significant effect of pollutant content from sources of pollution on the environment around the palm oil mills.
Estimation of Health Impacts and Externality Costs with the Robust Uniform World Model in the Muara Karang Generation Units Della Kumalaningrum; Rinaldy Dalimi
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i2.33423

Abstract

To encourage national economic growth, efforts are made to maintain electricity availability in Indonesia. Until now, the need for electrical energy in Indonesia is still supplied by fossil fuel power plants, especially Steam Power Plants and Gas Steam Power Plants. One of the negative impacts arising from electricity generation activities is air pollution. Air pollution is produced in the form of waste gases such as PM10, SO2, NO2, and these gases causes global warming and impact of human health. In this study, the magnitude of the negative impact calculated based on the impact on public health, which will then be limited to economic value (cost of externalities). Cost of externalities are conditions when the effect of the production of goods or services imposes costs or benefits on other parties, and these costs are not reflected in the price charged for the goods or services produced. The estimation of public health impacts and externality costs calculated in this study comes from power plants operating at the Muara Karang Generation Unit using Robust Uniform World Model (RUWM). The research results show that the amount of health and externality costs obtained for each power plant are different because each power plant has different operating conditions. In PLTGU Block 1, the resulting externality cost was 18,51 cents USD/kWh, PLTGU Block 2 was 3,05 cents USD/kWh, and PLTGU Block 3 was 1,75 cents USD/kWh. The two Unit of PLTU Muara Karang generate different externality costs, namely 1,52 cents USD/kWh for PLTU Unit 4 and PLTU Unit 5 of 1,10 cents USD/kWh.

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