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All Journal BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan
Vontas Alfenny Nahan
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Education Energy Engineering Transportation Other

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THE ANALYSIS OF ENERGY OPTIONS FOR CENTRAL KALIMANTAN PROVINCE debora, Debora; Vontas Alfenny Nahan
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 1 No. 1 (2013): Journal Balanga Edisi Januari-Juni 2013
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.823 KB)

Abstract

Kalimantan contributed 10.5% to the national GDP in 2008. Most of this contribution (7.5%) came from East Kalimantan, followed by West Kalimantan (1.2%), South Kalimantan (1.1%), and Central Kalimantan (0.8%). Even though Central Kalimantan’s contribution is still relatively small in terms of national GDP, in the coming years it become bigger and bigger as the energy resources in the neighboring provinces is decreasing. It is estimated that energy demand in Central Kalimantan will more than treble by 2025 - as compared with 2010 consumption level. Clearly, effective policy measures will be required to overcome current energy problems and to plan for the future and this is the main objective of the research. Two scenarios are developed in this research to better understand the wider consequences of strategies to meet rising demand not only in Central Kalimantan, but also in Kalimantan region. The first scenario is called (in this research) Business-As-Usual (BAU) which corresponds with the national energy blueprint for 2025. The other scenario is Renewable (REN) with 15% more of renewable energy in the primary energy mix. First recommendation offered here is to suggest that the rate of utilization of renewable energy should be increased. Other option is to develop energy infrastructure, pipelines for gas distribution or gas stations for gas-fueled vehicles. Other strategies include promoting the environmental conservation, public-private partnership for infrastructure development, promotion of research and development on energy issues, design of appropriate financial and legal frameworks and emphasis on capacity building and technology transfer.
THE INFLUENCE OF LEARNING MODEL TAKE AND GIVE ON THE STUDENT STUDY RESULT OF LEARNING MATERIAL COOLING SYSTEM IN GRADE XI LIGHT VEHICLE ENGINEERING AT SMKN 1 PALANGKA RAYA ACADEMIC YEAR 2014/2015 Abrari Sauqi; Vontas Alfenny Nahan
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 1 No. 2 (2015): Journal Parentas Edisi Juli-Desember 2015
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

One of several factors of low quality in the teaching of material to explain the components of cooling system in the subject of the Maintenance of Light Vehicle in the XI Grade TKR SMKN 1 Palangka Raya academic year 2014/2015 is because the teacher delivers the material verbally without any variation. To overcome such problem, the application of learning model Take and Give is proposed. This research aims to understand the influence of learning model Take and Give on the study result of the students. Data were taken from two classroom. Classroom A (16 students) as the experiment group where the learning model will be applied, and Classroom B (16 students) as the control group where the verbal learning will be applied. Data collected from the post test result on the both group is tcalculated= 5,35 > ttable= 2,042 on the significancy level 5% dan df = (16+16-2) = 30.It can be seen that tcalculated ttable, thus Ho was rejected and HI was accepted so it can be concluded that there is an influence of learning model Take And Give on the student’s study result.
THE MEDIA DEVELOPMENT OF JOBSHEET ON THE PRACTICE OF MANUAL ELECTRIC WELDING IN THE TENTH GRADE OF TKR SMK KARSA MULYA PALANGKA RAYA 2014/2015 Ifan Jon Rusadi; Vontas Alfenny Nahan
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 2 No. 1 (2016): Journal Parentas Edisi Januari-Juni 2016
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

Jobsheet is a printed media by which the making process is by printing or offset. This printed media delivers its message through letters and pictures illustrated to make clearer message or information in order for the students to learn independently with or without tutorial. The purposes of this research are: (1) to develop jobsheet media for the practice of manual electric welding for tenth grade of TKR SMK Karsa Mulya Palangka Raya 2014/2015; (2) to describe practice results after learning using jobsheet media developed for manual electric welding; (3) to describe students response on the learning using jobsheet media. Development model used here is procedural model that is a descriptive model that shows steps to be followed to produce certain product. In this research something to be developed is a learning device in a jobsheet of the study material Manual Electric Welding. Instruments to be used is a validation sheet from a material expert, a validation sheet from a media expert, and student response questionnaire. Validation sheet obtained to determine the appropriateness of the media to be used in learning. Based on the research result it can be concluded: (1) development result shows jobsheet can be used in the practice of manual electric welding, and from the material expert it is obtained score 49 with average 4,08 which means good. From the media expert the score is 47 with average 4,7 which means very good. (2) student study results using jobsheet shows all students finish, as per the KKM which is ? 75; (3) student response results on 8 aspects were presented to the students. From the field assesment score 533 is obtained with average 4,16 which means very good. It is then concluded that jobsheet development can be used in learning media.
THE EFFECT OF GUIDED DISCOVERY LEARNING OF STUDENT LEARNING LESSON MATERIALS ON IMPLEMENTING THE PROCEDURE OFMANUAL ELECTRIC WELDING IN LIGHT VEHICLE ENGINEERINGGRADE X SMK KARSA MULYA PALANGKA RAYA AT ACADEMIC YEAR 2015/2016 Bayu C. Anggara; Vontas Alfenny Nahan
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 2 No. 2 (2016): Journal Parentas Edisi Juli-Desember 2016
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

The purpose of this research is to know the effect of discovered guidance learning model to student’s learning achievement on the procedure implementation of manual welding subject in Class X of Light Vehicle Engineering Major (TKR) SMK Karsa Mulya Palangka Raya at academic year 2015/2016. This research is experimental type with using method of one group pre test-post test design where was held at SMK Karsa Mulya Palangka Raya. The sample took the Students of Grade X of Light Vehicle Engineering Major at around 28 persons. Research data is using quantitative data of test instrument of learning outcomes namely pre test score and post test value. Before applying it, the instrument is tested in grade X of Welding engineering major at SMKN 1 Palangka Raya. The result for 50 multiple choice questions has obtained the accepted 30 questions being the selected instrument in this paper. The outcomes of parameter hypothesis test utilizing t-test is that correlated 2 samples have been resulted the value of tcount > ttable (4,437 > 2,006). Due to tcount = 4,437 which is higher than ttable = 2,006, this means that Ho is unaccepted and H1 is accepted indicating that there is the influence of discovered guidance learning model to student’s learning achievement on the procedure implementation of manual welding subject in Class X of Light Vehicle Engineering Major (TKR) SMK Karsa Mulya Palangka Raya at academic year 2015/2016. All in all, this research concludes that the student’s outcome using that method was providing a progress comparing to previous condition.
MEASUREMENT OF WATER RETENTION OF PEAT SOIL IN CANAL BLOCKING USING PRESSURE PLATE CHAMBER Lola Cassiophea; Jany Tri Raharjo; Salampak Dohong; Zafrullah Damanik; Berkat Pisi; Natalina Asi; Rinto Alexandro; Ruli Meiliawati; Gunarjo Suryanto Budi; Davit Purwodesrantau; Dermawati Sihite; Ambia Rio Suwanda; Adi Jaya; Antonio Jonay Jovani Sancho; Vontas Alfenny Nahan; Eka Nur Taufik; Lusia Widiastuti; Inga Torang; Yesser Priono; Petrisly Perkasa; Trissan, Whendy
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 11 No. 2 (2023): Journal Balanga Edisi Juli-Desember 2023
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v11i2.11719

Abstract

Measuring air retention in constructed canal blockage is critical for determining changes in air content after canal blocking. The purpose of this study is to assess the influence of changes in levels on air retention values measured at three depths, namely 0-20 cm, 20-40 cm, and 40-60 cm, at four transect sampling stations created at a distance of 10 m to 260 m from the canal block. Changes in bulk density, porosity, and peat volume affect groundwater. Peat soil samples were collected from burned peatlands, and canal blocks were constructed. A pressure plate chamber was used to assess air retention. The findings of the investigation revealed that the air retention pattern of peat soil at 16 test sample locations was at maximum at PF 0.2 at each depth. At higher pressures (pF 2-4.2), peat groundwater is strongly bonded by peat soil particles. The average bulk density of peat is 0.2 2 and the porosity value is 86.79%. The higher the air content at each pF value has no influence on the porosity and bulk density values. Changes in air content between pF 2.0 and 4.2 lower average peat volume by 7.4%. The size of this value is assumed to be determined by the peat's type, maturity, and decomposition value.
OPTIMIZATION MODEL FOR USING WATER FLOW IN HYDRAM PUMP STORAGE BARRELS AS A SOURCE OF SUSTAINABLE ELECTRICITY GENERATION ON A LABORATORY SCALE Vontas Alfenny Nahan; Topan Eka Putra; Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 11 No. 2 (2023): Journal Balanga Edisi Juli-Desember 2023
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v11i2.11742

Abstract

Currently, energy needs are increasing greatly, this is influenced by increasing population growth and human activity. The development of simpler renewable energy must be encouraged to meet energy needs, at least to meet the domestic energy needs of households. A hydram pump is a tool that can utilize water flow to produce kinetic energy which is then converted into potential energy to lift water to a certain height. This potential energy can be converted into electrical energy through a generator. A hydram pump is a tool used to raise water from a low place to a higher place automatically with energy originating from the water itself, namely because of the height of the falling water which is used to press the valve on the hydram pump and result in a water hammer when the water is stopped automatically. suddenly, then the change in momentum of the fluid mass will also increase the pressure suddenly. This research was carried out at the Mechanical Engineering Education Laboratory at Palangka Raya University with the methods described which will include experimental steps, data collection and analysis to be carried out. This research aims to develop an optimization model for the use of water flow in the hydram pump reservoir as a source of sustainable electricity generation on a laboratory scale. The results of this research have been carried out 4 times with the height of the turbine from the bottom of the experimental floor being 3 m while the size of the exhaust valve opening is ± 4 cm and the height of the water plunge from the barrel to the hydram pump is 2 m; 1.5m; 1.2 m is able to produce stable turbine rotation so that the lights come on. However, at a height of 1 m from the barrel to the hydram pump, the turbine rotation produces dim lights.
DEVELOPMENT OF A DATA LOGGER-BASED WATER LEVEL MONITORING SYSTEM FOR PEATLANDS Cassiophea, Lola; Maya Erliza Anggraeni; Vontas Alfenny Nahan; Indah Gumilang Dwinanda; Radifan Rahman; Muhammad Firza; Elvan; Fajar Sukmawan Aritama Harsono Putra; Fherdika Boy; Julian Prakarsa; Nathanael Yanuar Kristianto; Gagas Wira Syahputra; Frans Putra Genesa; Berta Uli Octa Agrayani Br.Marbun; Chairul Basir
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 13 No. 1 (2025): Journal Balanga Edisi Januari-Juni 2025
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v13i1.18390

Abstract

This study investigates the dynamics of water level (TMA), electrical current, power, and battery voltage in a data loggerbased monitoring system designed for peatlands. Data collected from October 30 to December 4, 2024, highlight significant fluctuations influenced by environmental factors, load surges, and voltage disruptions. Scenario simulations, including changes in rainfall, sudden load increases, and voltage system disturbances, were performed to evaluate the system's operational efficiency and stability. The findings indicate that TMA is highly influenced by hydrological conditions, where a 50% reduction in rainfall significantly decreases TMA, impacting the stability of current and power. A 50% load surge drives the current and power close to the system's maximum capacity, while voltage disruptions lead to a 20% increase in current and a 20% reduction in power, revealing system imbalances. Energy efficiency remains stable under normal conditions (0.0022) but drops significantly during disruptions. The study underscores the need for integrating protective technologies, such as Automatic Voltage Regulators (AVR), Overcurrent Protection, and balanced load management, to mitigate risks and maintain system stability. Additionally, improved water management in peatlands contributes to stabilizing TMA and reducing environmental impacts on electrical parameters. This research highlights the importance of a holistic approach, combining technology, hydrological management, and data-driven simulations, for sustainable operations. The findings offer practical recommendations for system enhancement, risk mitigation, and the development of future energy monitoring tools. Opportunities for renewable energy integration are also explored to ensure long-term operational efficiency and environmental sustainability.
Co-Authors Abrari Sauqi Adi Jaya Ambia Rio Suwanda Antonio Jonay Jovani Sancho Bayu C. Anggara Berkat Pisi Berta Uli Octa Agrayani Br.Marbun Cassiophea, Lola Chairul Basir Davit Purwodesrantau Debora Debora Dermawati Sihite Eka Nur Taufik Elvan Fajar Sukmawan Aritama Harsono Putra Fherdika Boy Frans Putra Genesa Gagas Wira Syahputra Gunarjo Suryanto Budi Ifan Jon Rusadi Indah Gumilang Dwinanda Inga Torang Jany Tri Raharjo Julian Prakarsa Lola Cassiophea Lusia Widiastuti Maya Erliza Anggraeni Muhammad Firza Natalina Asi Nathanael Yanuar Kristianto Petrisly Perkasa Radifan Rahman Revianti Coenraad Rinto Alexandro Ruli Meiliawati Salampak Dohong Topan Eka Putra Trissan, Whendy Yesser Priono Zafrullah Damanik