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EFFECT OF JATROPHA BIODIESEL BLEND TO EFFICIENCY VOLUMETRIC OF DIRECT INJECTION DIESEL ENGINE Jhonni Rentas Duling
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 4 No. 1 (2016): Journal Balanga Edisi Januari-Juni 2016
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Problems oil reserves are dwindling caused the crisis, the effects of the crisis has been felt in the last few years. It encourages researchers to participate in developing renewable fuels. This study, try blend Biosolar Pertamina with jatropha biodiesel. The purpose of this study was to determine the effect of the composition of jatropha into Pertamina Biosolar to volumetric efficiency of direct injection diesel engine 4- stroke, 4-cylinder with a cylinder volume is 2.8 liters. The composition of the fuel for the experiment is D100 ( Biosolar Pertamina 100% ) ; D90J10 ( Biosolar 90% Jatropha 10%) ; D80J20 ( Biosolar Pertamina 80% Jatropha 20%) dan D70J30 ( Biosolar 70% Jatropha 30% ). The method used is experiment. Results of the study are (1) Effect increase the percentage of biodiesel jatropha to engine diesel power is the power at all loads to be decreased. Values drop in brake power at each of the largest load variation occurs in the mixture D70J30 with a value decline of 0.75%, 5.28%, 10.37% and 9.85% of the power with fuel D100. (2) Effects of jatropha biodiesel percentage increase also resulted in torque at all loads going down. the lowest decline in every variation is incurred on fuel D70J30 brake power is calculated from the value D100, with a value decline of 0.74%, 5.02%, 9.40%, and 8.96%. (3) Effect throughout the fuel mixture of the volumetric efficiency of diesel engines is causing decreased volumetric efficiency, the biggest decline was 6.33%, 6.61%, 6.33%, and 6.19% in the fuel D80J20 volumetric efficiency is calculated from the value D100. Suggested solutions to overcome the problems of a decrease in volumetric efficiency is by placing the intake valve settings, so that when air intake into the cylinders could be longer and with the modification that with the addition of a supercharger or turbocharger, more preferably also added intercooler.
ANALYSIS OF POWER TRANSFER SYSTEM AND MOVING SYSTEM IN MATIC BUGGY CAR Samuel Layang; Jhonni Rentas Duling; Airways P Siahan
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 6 No. 1 (2018): Journal Balanga Edisi Januari-Juni 2018
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

The buggy car is a vehicle possessing mini dimension boarded by single to four passenger seats in which it is able to provide the demand of transportation in industrial estates and plantations such as oil palm plantations. The massive need for a simple transportation to assist the specific human works in the area of plantations in Kalimantan is an appropriate reason to choose this technology. Based these, researchers focus to analyze a simple transportation model, inexpensive, however highly efficient land device for plantation works. This vehicle enormously expected to help the modes of transportation in general plantations and estates. Beside those, it can be an educational model in vocational education of university and college to enhance the student’s interest and skill to deepen the field of educational mechanical engineering. Furthermore the author and team attempt to design then analyze the mechanical drive system and power transmission of Buggy automobile with a simple construction and components that are easily found in the market. This research has conducted by implementing the experimental research type (True Experiment Research). By the results of analyzing the types of actuators, the type of power transmission and steering model for Buggy automobile, it has been obtained that the transmission system used is the CVT (Continually Variable Transmission) type that mechanical works based on engine speed and centrifugal force. Eventually the total weight of buggy car is 157 kg, minimum power at about 5,37 HP, Shaft diameter at around 55 mm, Pitch diameter of Gear spur (dp) integrated in differential gear is 48 mm. The total weight of the vehicle including the weight of the driver has a significant impact on engine performance. Overall, light vehicles must look better because the engine capacity is adjusted to the chassis
LEARNINGS MODEL INFLUENCE TAKE AND GIVE TO USUFRUCT SUBJECT STUDENT STUDYING CONVERTS ENERGY ON BASICS PRINCIPLE BASE INTEREST OF MOTOR BAKAR CLASS X TEKNIK KENDARAAN RINGAN (TKR) AT SMK NEGERI 1 PALANGKARAYA SCHOOL YEAR 2015/2016 Wahyu Julianur Permad; Jhonni Rentas Duling
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

This research aims to know the influence learning model of students studying on basic principle based on interest to motor burning subject at class x TKR SMKN 1 Palangka Raya. To assess student upon learning by utilizing a conventional method that gets lowest discourse character at under average value which is 68,45. Meanwhile minimal thoroughness criterion 70, therefore it needs to be done by improvement in student’s learning activity. One of effort which can be done in achieving a success namely, teacher can choose and applies a relevant learning model with teaching material for students. By using the learning model “Take And Give” can be active in notice learning in which student can mutually interact the information to classmate. The sample is done by using Random Sampling. First sample involved 33 students in TKR which is as class of experiment utilizing in learning model Take And Give. The next sample took 31 students be in TPM as control class by using a conventional learning of models that used to the model learning. This adopted the research experiments. In this study, the intrument is using the double helix to collect a result data. Then it was analyzed by the data tests normality, homogeneity quiz, and quiz t, test normality for Post is Test Experiment class which is x2 computing < 2x tablel, which is 7,959 <11, 070. Normality quiz Post is Test class controls computing < tablel, which is 9, at 240< 9,488, the test homogeneity is gotten Fhitung= (1.11) < Ftable (1.82), and homogeneous has been stated. Finally it can conclude that t computing = 3,76 > ttable = 1,999 thus Ho is refused and Ha is accepted. Ha is available result of influence studies by using the type learning model Take And Give on basic principle motor burning on X TKR SMKN 1 Palangka Raya School Year 2015 / 2016.
APPLICATION COOPERATIVE LEARNING MODEL GROUP INVESTIGATION TYPE ON BASIC COMPETENCE DESCRIBE BASIS PRINCIPLE OF MOTOR FUEL IN CLASS TSM SMK NEGERI 1 PALANGKA RAYA 2016/2017 Dan Reas; Jhonni Rentas Duling
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 3 No. 2 (2017): Journal Parentas Edisi Juli-Desember 2017
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

The problem is lack of active students in following learning process, where teacher becomes an only source knowledge during in classroom of learning process. One solution is use of the group investigation model, where the group investigation model provides students opportunity to be active and expressing their opinions. The purpose of this study is to find out how the student learning outcomes and student responses by using the model group investigation in class X TSM SMK Negeri 1 Palangka Raya. This type of research is quantitative research. The population in this research is student of class X TKR and X TSM SMK negeri 1 Palangka Raya on academy year 2016/2017 at about 85 students. Based on the results of the study, student learning outcome has increased after using group investigation model on basic competence. It described the basic principles of motor fuel in class X TSM SMK Negeri 1 Palangka Raya with the percentage average completeness of student learning outcomes was reaching 76.55 increased from 47.11 and level of achievement in learning process was at 88,80% before applied group investigation model. With the completeness of learning outcome at 76,55 and level of achievement 88,80 the process of applying model of study group investigation in basic competence has described the basic principles of motor fuel achieving the criteria.
THE RELATIONSHIP BETWEEN LEARNING ACHIEVEMENTS AND STUDENT’S LEARNING INTEREST OF SMK KARSA MULYA PALANGKA RAYA SCHOOL YEAR 2016/2017 Andika Rikco Lelono; Jhonni Rentas Duling
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 4 No. 1 (2018): Journal Parentas Edisi Januari-Juni 2018
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

The porpose of this research is to find whether the positive ralationship and significance between learning desire to learning outcomes of students at SMK Karsa Mulya Palangka Raya at academic year 2016/2017. Learning motivation is a factor determining the learning achievement thus it was about the emotion to be interest to something stated to provide the benefits and satisfication to ownself. It will boost own role to be participating in activity consciously. This research was adopting the survey type which the data collection method was questionnaire and documentation. The research subject has been students of X grade in TKR and TSM with the total sample was at 75. Moreover, data analysis utilized the product Moment correlation. Analysis of prerequirs in this research clearly used SPSS V.20 application. The outcomes of research indicated that there is the positive relationship and significance and between learning desire to student’s achievemen for studnets at SMK Karsa Mulya at academic years 2016/2017. This is proved by rhitung value at 2,168 > rtabel 1,666. Eventually, every the increament of learning desire, it was followed the improvement of learning achievements.
THE RELATIONSHIP INTEREST AND LEARNING MOTIVATION WITH LEARNING RESULTS STUDENT OF THE TENTH GRADE TKR A SMK KARSA MULYA PALANGKA RAYA ACADEMIC YEAR 2016/2017 Lancing Mas Kaliyono; Jhonni Rentas Duling
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 5 No. 1 (2019): Journal Parentas Edisi Januari-Juni 2019
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

The main case in this research is influenced many factors that effecting student learning outcomes including interest and motivation factor due to have an important role in determining student's success. This research is aimed to know the relation of interest and motivation to student learning achievements at SMK Karsa Mulya Palangka Raya. The method used in this study is quantitative research using correlation research approach to find the relationship of interest and motivation to investigate the learning outcomes. The sample in this research is the students of the tenth grade TKR A with the total number at about 34 students. This sampling technique is using purposive sampling which technique of taking based on certain considerations. Data collection method of interest and motivation is taken from the questionnaire while the results of learning data collected from test block test. From the normality test results obtained that the data of interest and learning motivation on student learning outcomes normally distributed. Data analysis is using simple correlation and multiple correlation. The result showed that there was a correlation between interest to learning result with correlation number 0.83 as strong category, then there was correlation between learning motivation toward learning result with correlation number 0,82 as strong category. There was a correlation between interest and motivation to learning outcomes with correlation number 0.88 as strong category. All in all, interest and motivation in the learning outcomes have been argued that there is essential correlation to student academic performance.
THE EFFECT OF COOPERATIVE LEARNING MODEL -TYPE NHT (NUMBERED HEAD TOGETHER) ON STUDENT LEARNING OUTCOMES OF CLASS X TKRO 2 OF SMK NEGERI 1 PALANGKA RAYA ON THE MATERIAL OF COMPONENT HYDRAULIC AND COMPRESSOR SYSTEM FOR ACADEMIC YEAR 2018/2019 Fathur Rahman; Jhonni Rentas Duling
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 6 No. 1 (2020): Journal Parentas Edisi Januari-Juni 2020
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

This research is carried out to investigate the effect of learning outcomes of students enter classes after applied NHT (Numbered Head Together) as type cooperative learning. The engineering subject such as component hydraulic system and compressors is planned being the class lesson for regarding study. This research implements True Experimental Design model based on the type of Posttest Control Design for 2 (two) groups. Each of them is selected randomly (R). The first group is given as treatment (x) while other does not be involved. The treated group is as the experimental group and subsequently the non-treated group is designed as the control group. After those implementations, the posttest denotes the experimental results in which the t-test with a significance level of ? = 0.05 has obtained a tcount of 8.99 while the ttable value was 2,000. Due to tcount > ttable, it can be concluded that there is an effect of using the NHT learning model (Numbered Head Together) on the student’s learning outcomes of class X TKRO 2 of SMK Negeri 1 Palangka Raya.
THE EFFECT OF COOPERATIVE LEARNING MODELS OF ASISSTED INDIVIDUALIZATION (TAI) TYPE ON STUDENT LEARNING RESULTS FOR GASOLINE FUEL SYSTEM IN CLASS XI OF LIGHT AUTOMOTIVE VEHICLE ENGINEERING 1 (T KRO 1) SMK NEGERI 1 AT ACADEMIC YEAR 2018/2019 Andi Sudigyo; Jhonni Rentas Duling
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 6 No. 2 (2020): Journal Parentas Edisi Juli-Desember 2020
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

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Abstract

The purpose of this study is to determine the usage effect of Team Assisted Individualization (TAI) as Cooperative Learning Model to Student Learning Outcomes in subject of Gasoline Fuel System in Class XI Light Automotive Vehicle Engineering 1 (TKRO 1) SMK Negeri 1 Palangka Raya at Academic Year 2018/2019. Our research attempts to find how the proposed learning model can improve the students’ learning outcomes in the fuel system material after applied through its technical procedure. In previous, most students indicated the partly below for the Minimum Completion Criteria (MCC). Indeed other issue in learning process is that teacher becomes active while many students tend to be passive thus generally speaking most leaning process is being ineffective . Furthermore, the research method applies True Experimental Design with the Form of Post-test for the Control Design. Random sampling technique implements the first sample namely class XI TKRO 1 with a total of 32 students. They are who taught by Team Assisted Individualization (TAI) Type of Cooperative Learning Model. The second sample is class XI TKRO 2 with 27 people taught by conventional models. The instruments of test use the multiple choice test which is numbered about 40 questions before the test questions to give the validity, reliability, differentiation, and level of difficulty of the questions. Based on the results of research and data analysis, it was concluded that the results of the normality test of student learning outcomes in the experimental class and control class were normally distributed and homogeneous. Technically, the hypothesis test applied the ttest then obtained tcount 3.09> ttable 2.003. This means that H0 is rejected and H1 is accepted, in which indicates that there is an influence of student learning outcomes taught by using the Team Assisted Individualization (TAI) as Cooperative Learning Model to Student Learning Outcomes.
EFFECT OF SAFETY VALVES AND HOLE DIAMETER STOVE AGAINST BIOGAS FLAME Harie Satiyadi Jaya; Jhonni Rentas Duling
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 3 No. 2 (2015): Journal Balanga Edisi Juli-Desember 2015
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Problem of rural communities in Indonesia is difficult to obtain kerosene on the market. Team researchers have tried to provide a solution by building a biogas digester type "dome" in the Tuwung village as a model, but this effort has a new problem that the resulting biogas digester quickly run out. From the results of the investigation are diagnosed digester output pipe clogged by water causing increased pressure and temperature so that the process of formation of biogas disturbed and also not optimum biogas stove hole so wasteful. To obtain the solution of this problem, this study aims: 1) Designing and making a safety valve digester; 2) Designing the optimum pit stove; 3) Creating pressure gauge digester. The method used in this research is true experimental research. the results of this study were: 1) A safety valve made from plastic bottles with a capacity of 2 liters, and filled with water to a depth of 6 cm, so it can withstand the pressure of the digester to 100.58 atm.2) Diameter hole obtained optimum stove is 6.5 mm; 3) Pressure gauge manometer water digester is made of transparent plastic hose diameter of 6 mm.
IMPLEMENTATION SCIENTIFIC APPROACH IN THE COURSE OF HEALTH AND SAFETY STUDENTS IN MECHANICAL ENGINEERING EDUCATION STUDY PROGRAM FACULTY OF TEACHER TRAINING AND EDUCATION PALANGKA RAYA UNIVERSITY ACADEMIC YEAR 2015/2016 Sri Murwantini; Jhonni Rentas Duling
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 4 No. 2 (2016): Journal Balanga Edisi Juli-Desember 2016
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

With the implementation of the curriculum 2013 at primary and secondary education, student at the University of Palangka Raya especially mechanical engineering education Study Program as a candidate teachers are required to improve their knowledge and skills in order to implement the curriculum by using a scientific approach to learning. Step-by-step scientific approach to learning as intended includes observing, questioning, experimenting, associating and communicate. Researchers will discuss the problems is student response to the application of the scientific approach to the subjects Safety and Health at work. In this study, the data analysis performed inductively. Data obtained from observation sheets and questionnaires compiled systematically and then selected which are important and which will be studied and made a conclusion so easily understood by myself and others. The application of scientific approaches in learning the subjects Safety and Health at work greeted positively by the students by referring to high activeness in learning and positive response, (Agree/strongly Agree) are also high for its response to the application of this scientific approach.