Vontas Alfenny Nahan
Dosen Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan Universitas Palangka Raya

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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

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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 ANALYSIS OF IGNATION TIMING ON THE ENGINE PERFORMANCE OF MATIC MOTORCYCLE USING LPG Vontas Alfenny Nahan; Sogi Hermanto
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 2 No. 1 (2014): Journal Balanga Edisi Januari-Juni 2014
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Indonesia’s crude oil production has been declining in recent years resulting in Government of Indonesia (GoI) to import more. This import gave more pressure to the financial problem GoI faced as the fuel price, especially premium, has been subsidized which reduced the GoI capability to support other sector of developments. This is actually the background of this research which is to support the policy of the GoI to encourage the use of alternative fuels, one of those is Liquefied Petroleum Gas (LPG). The method used in this research is a true experiment method to analyze the performance of the matic motorcycle engine by comparing fuel that is consumed between 5? and 10? angle of crankshaft for ignition timing on petrol and LPG with various rpm ranged from2000 to 6000 rpm). The result shows that LPG consumption at 10?- angle is lower than that of 5?. Ignition time at 10?- angle for LPG is also more optimal than that of 5?. It is concluded also that at the rpm 6000 is the most effective for engine to run at 10?- angle for LPG.
A REVIEW ON THE ELECTRICITY SUPPLY POLICYON THE PROVINCE OF CENTRAL KALIMANTAN, INDONESIA Vontas Alfenny Nahan
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 2 No. 2 (2014): Journal Balanga Edisi Juli-Desember 2014
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Recently, blackouts in Palangka Raya, capital city of Central Kalimantan became more and more often. PT. PLN Palangka Raya branch was always put the blame on the dry season that caused the dam in RiamKanan to have dried resulting in the shutdown of their power engine thus to turn off the electricity supply to every area including Palangka Raya. Endowed with rich natural resources including energy resources such as oil and coal, it is unlikely to see that this region was suffered from lack of power. There must be something wrong in the electricity supply policy from central government in the arrangement of energy. This is one of the reasons why this topic is deemed important as the background of the research. This research aims to find electricity supply policy for Central Kalimantan Province by reviewing the current and future electricity supply policy in order to meet the future electricity demand up to 2025. The current electricity consumptions are calculated based on the historical data and future electricity demand for Central Kalimantan. The methodology used in this research is historical analysis to get the trend of the supply and demand and the review of electricity planning of PT. PLN 2006-2025 in order to meet the future electricity demand. The review on the effect of the coal-fired power plant is also discussed to give readers a clear understanding on the effect of coal-fired power plant on human health in long term. Finally, the objective of this research beside to find electricity supply policy for the Central Kalimantan province, is also to give a clear understanding of the consequences our next generation will face by choosing a certain electricity supply policy reflected in the RUPTL made by PT. PLN. Still this research has many limitations which open further research to give more comprehensive electricity supply for Central Kalimantan such as the more accurate data collecting, method used and time constraint.
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.