This study aims to produce a Project-Based Learning model for vocational education in practical learning in Automotive field courses. The product of this research is the PjBL learning model in the practical course of Vehicle Body Technology. In this research is carried out through the stages of preliminary studies, model development, model validation, and implementation. The research was conducted at the Automotive Workshop of the Automotive Engineering Department, FT-UNY. The subjects of this study were lecturers and students of the Automotive Engineering Department who took practical courses in Vehicle Body Technology. Model feasibility tests were carried out by practitioners from the body repair and painting industry and Vocational School teachers on the Automotive Body Engineering spectrum. This development research was conducted in February until July 2019. The product of this research is in the form of a PjBL model for vocational education in the automotive sector that has been assessed and declared fit for use as a learning model in the automotive field of vocational education. Student responses to the implementation of PjBL learning in the Vehicle Body Technology course are also very good so that this learning model is in the very feasible category.

The purpose of this research were: (1) to produce an appropriate micro-teaching video for the student teachers of Teacher Professionalism Training Program of Automotive Engineering Education, (2) to find out their responses to the micro-teaching video, and (3) to find out the effectiveness of the micro-teaching video in teaching the students. This research employed ADDIE model consisting of five stages namely analysis, design, development, implementation and evaluation. The product of this research was validated by the experts of media and materials in automotive engineering field. The product was tested on the students of Teacher Professionalism Training Program of Automotive Engineering Education Department. The research data were collected using questionnaire and observation sheet, and were analyzed through quantitative descriptive analysis. The results showed that: (1) micro-teaching video as learning media was classified into ‘very good’ level with the mean score 4.89 by the media expert, and also categorized into ‘very good’ with the mean score 4.67 by the materials expert, (2) the student teachers’ responses to the video during the try-out were classified into ‘very good’ level with the mean score 4.20, and (3) micro-teaching video as learning media was assumed to effectively improve the student teachers’ teaching skills. There was a significant improvement on the student teachers’ practice score, from 77.26 in the first practice to 83.59 in the second practice. In conclusion, micro-teaching video is an appropriate and effective learning medium for student teachers in Teacher Professionalism Training Program.

A situation in which the car is directly parked under the sunlight needs to be considered as one of unavoidable operating conditions.The thermal phenomenon perceived by car dashboard might affect its functionality. The biomechanical function of the dashboard focused on the thermo-structural evaluation due to the direct sunlight was numerically simulated and investigated in this work. Polypropylene was chosen as the main dashboard material.The aims are to evaluate the temperature distribution, stress distribution and structural deformation of a car dashboard subjected to direct sunlight and due to the outside air goes inside the passenger compartment through an air duct.The material yieldsa small temperature gradient due to both direct sunlight and air flow through the air duct.By imposing 400 W/m2 heat flux on the dashboard surface, the stress distribution mainly occurs in the part of the applied constraints and the air duct placement, which has maximum value 19.56 MPa. The displacement of the dashboard is 0.0357 mm which is chiefly experienced by the front-centre part of the dashboard surface.

The heat transfer system of the pipe for furnace application was newly introduced and need to be analyzed. The study aims to numerically model and investigate the externally blown heated pipe for furnace. The furnace itself is the heat source for briquette production inside the oven. The investigation includes the analysis of temperature, air flow velocity and also pressure inside the pipes. The investigation employed the Computational Fluid Dynamics methodology for numerically analysis the intended results. Three cases were introduced in this study, having differences in the air intake velocity which was set to 5 m/s (case 1), 3 m/s (case 2) and 1 m/s (case 3). The main objective is to have the highest outlet temperature to be blown in the heating chamber. Case 1 results in the lowest resulting temperature which only 77 , while case 3 yields in the highest output temperature more than 100 . In terms of velocity, it is clear that the highest velocity intake affects also in the increasing value of the velocity inside the pipe. Case 1 results in maximum of 35 m/s air velocity. The pressure distribution also results in the similar trend. The case 1 yields in the maximum pressure of 650 Pa and case 3 produce the pressure nearly zero. However, case 3 results in the highest temperature for furnace to be blown in the heating chamber of the oven system.

Penelitian  ini  bertujuan  untuk  mengetahui  karakteristik:  (1)  konsumsi  bahan  bakar motor diesel 4 langkah ditinjau dari perubahan timing injeksi pada penggunaan biosolar dan Pertamina Dex, (2) opasitas gas buang pada motor diesel yang dihasilkan ditinjau dari perubahan timing injeksi pada penggunaan biosolar dan pertamina dex. Penelitian dilakukan dengan pendekatan eksperimen pada motor diesel 4 langkah 1 silinder direct injection berdaya maksimum 4200 watt. Pengontrolan dilakukan pada putaran dan beban mesin melalui beban kelistrikan dari generator. Pengumpulan data dilakukan dengan observasi.  Data  dianalisis  melalui  perhitungan  rata-rata  dan  disajikan  dalam  bentuk tabel dan grafik. Hasil penelitian menunjukkan bahwa: (1) konsumsi bahan bakar paling efisien saat timing injeksi 30O  sebelum TMA (maju) dengan biosolar, sedangkan ketika dimundurkan cenderung semakin boros, dan (2) opasitas gas buang paling rendah berada pada timing injeksi 30O  sebelum TMA (maju) dengan Pertamina Dex dan semakin tinggi ketika dimundurkan.Kata kunci: konsumsi bahan bakar, opasitas gas buang, Pertamina Dex, biosolar, timing injeksi