Enhancement of Orientation of Corn Shelling Machine

Shelling is one of the most responsible and post-harvest operations of the plant. Production of various types of grain, peeled from the bark and traditionally. It is a traditional show of corn and the most time-consuming activities included hard work, grain loss and felling, chipping through a bite, using sticks, and using animals to step on multiple locations. Modern corn huskers tend to be large and heavy, high energy, which require high scaling capabilities. Additional expenses, the purchase of huskers, this is a high level of agriculture, small farmers-owners. Therefore, the aim of this study is to design, construct, and evaluate the performance of a small corn husker engine management system. It was built with both local, affordable materials and its cost is very low and affordable. The main components of the machine are: hood, scale block (musician, drum and concave), outer cover, shaft, frame and exhaust port. The location of these elements in relation to the belt and pulley. Engine capacity of 2 HP. provides drive through pipeline connections with the drive pulley show in between. Existing methods in the case of maize, de-zoom, the agro-industrial complex consists of crushing grain manually or using machines to the proper extent, and not one of them is effective, so as not to invest money in the development of the economy, public relations. Therefore, there is a need for an innovative idea for a product that is feasible, safe, cost-effective and efficient for the Indian farmer.

Penilaian Keterampilan Pemeliharaan Kendaraan Ringan Sistem Injeksi pada Uji Kompetensi Kejuruan di SMK N 1 Tengaran 2021

Penelitian ini bertujuan untuk: 1) mengetahui keterampilan siswa membaca dan memahami gambar teknik, 2) mengetahui keterampilan siswa menggunakan dan memelihara alat ukur, 3) mengetahui keterampilan siswa memelihara/servis dan memperbaiki engine management system. Jenis penelitian menggunakan metode penelitian kualitatif yang digunakan untuk meneliti pada obyek yang alamiah, dimana peneliti adalah sebagai instrumen kunci. Menggunakan jenis fenomenologi dimana penyelidikan peneliti dilakukan pada suatu program, peristiwa, aktifitas, proses sekelompok individu. Peneliti menggunakan observasi, wawancara, dan telaah data hasil uji kompetensi. Berdasarkan hasil analisis diskriptif menunjukkan bahwa penilaian keterampilan pemeliharaan kendaraan ringan sistem injeksi pada uji kompetensi kejuruan di SMK N 1 Tengaran telah sesuai dengan standar yang ditetapkan oleh industri dan SKKNI. Dimana penilaian keterampilan pembacaan dan pemahaman gambar teknik, pembacaan alat ukur, dan perawatan dan perbaikan Engine Management System sudah dilakuan pada uji kompetensi di SMK N 1 Tengaran dan melalui tata urutan yang tepat. Agar siswa dapat terampil pada seluruh aspek keterampilan pemeliharaan kendaraan ringan sistem injeksi maka perlu terus menerus dilatih. Dengan membiasakan anak berlatih baik dalam pembacaan gambar teknik, pengukuran, dan perbaikan EMS maka diharapkan siswa mampu melaksanakan uji kompetensi tanpa kendala. Penambahan jam praktek bagi siswa yang akan dilaksanakan uji kompetensi juga merupakan pemecahan masalah bagi siswa yang kurang siap secara skill dalam menghadapi uji kompetensi.

Rancang Bangun Engine Management System (EMS) pada Troopers Guard Robot 25 (TGR-25)

Robot TGR 25 merupakan robot tempur yang dirancang untuk membantu dimedan pertempuran. Dalam robot ini didesain untuk sistem penggerak roda menggunakan motor DC dan stepper. Untuk menggerakkan sistem penggerak diperlukan sistem kelistrikan, guna untuk mengoprasikan robot. Kelisrtikan merupakan perangkat/sistem yang sangat berpengaruh pada robot. Sistem kelisrikan berfungsi untuk mendukung pengoprasian robot, mulai dari awal start sampai dengan pengoprasian robot. Komponen yang digunakan untuk sistem penggerak roda maju mundur menggunakan motor DC 350 Watt, motor DC 250 untuk RCWS, sedangkan untuk pergerakan belok menggunakan motor stepper 144 Watt. Agar robot dapat beroperasi dengan maksimal robot TGR 25 menggunakan 2 buah baterai 12 volt 150 Ah yang disusun secara seri supaya kebutuhan daya yang diperlukan tiap-tiap komponen cukup untuk mengoperasikan robot. Dari hasil perencanaan dan perhitungan menunjukkan bahwa sistem kelistrikan dengan menggunakan 2 buah baterai 12 volt 150 Ah yang disusun secara seri mempunyai daya 3600 Watt. Untuk lama pemakaian baterai untuk menggerakkan seluruh komponen pada robot 2,16 jam, dengan kecepatan 4,5 km/jam dengan jarak tempuh maksimal 9,72 km.

Cavitation between cylinder-liner and piston-ring in a new designed optical IC engine

A new engine block with optical access has been designed and manufactured capable of running up to 3000 r/min with the same specification as the unmodified engine. The optical window allowed access to the full length of the liner over a width of 25 mm to investigate the lubricant flow and cavitation at contact point between the rings and cylinder-liner. In addition, it allowed good access into the combustion chamber to allow charged flow, spray and combustion visualisation and measurements using different optical methods. New custom engine management system with build in LabView allowed for the precise full control of the engine. The design of the new optical engine was a great success in producing high quality images of lubricant flow, cavitation formation and development at contact point at different engine speeds ranging from 208 to 3000 r/min and lubricant temperatures (30°C–70°C) using a high-speed camera. The results under motorised operation confirmed that there was no cavitation at contact points during the intake/exhaust strokes due to low in-cylinder presure, while during compression/expansion strokes, with high in-cylinder pressure, considerable cavities were observed, in particular, during the compression stroke. Lubricant temperatures had the effect of promoting cavities both in their intensity and covered ring area up to 50°C as expected. Beyond that, although the cavitation intensity increases further with temperature, its area reduces due to possible collapse of the cavitating bubbles at higher temperature. The change of engine speed from 208 to 800 r/min increased cavitating area considerably by 52% of the ring area and was further increased by 19% at 1000 r/min. After that, the results showed very small increase in cavitation area (1.3% at 2000 r/min) with similar intensity and distribution across the ring.

PELATIHAN PENINGKATAN KOMPETENSI PRA UJI KOMPETENSI KEJURUAN (UKK) JURUSAN TEKNIK OTOMOTIF KEPADA SISWA SMK RIGOMASI BONTANG

Pengabdian Masyarakat merupakan salah satu dari Tridharma Perguruan Tinggi yang wajib dilakukan oleh dosen. Uji Kompetensi Keahlian (UKK) adalah bagian dari intervensi Pemerintah dalam menjamin mutu pendidikan pada satuan pendidikan Sekolah Menengah Kejuruan. Pelaksanaan UKK bertujuan untuk mengukur pencapaian kompetensi siswa pada level tertentu sesuai kompetensi Keahlian yang ditempuh selama masa pembelajaran di SMK. Tujuan kegiatan pengabdian masyarakat ini adalah untuk mendukung persiapan siswa SMK Rigomasi pada Ujian Kompetensi Keahlian teknik otomotif yang setiap tahun diadakan dan meningkatkan pencapaian kompetensi siswa SMK Rigomasi. Berdasarkan hasil kegiatan dan pembahasan bahwa terdapat peningkatan pengetahuan dan keahlian tune up dan perbaikan engine management system yang cukup signifikan setelah melewati pelatihan yang ditandai dengan hasil perbandingan antara nilai pretest dengan post test. Dari hasil pengolahan data dapat disimpulkan bahwa nilai ujian post test maksimum sebesar 8,97.

The relevance of autotronic engineering competence at vocational high school to the world of work

The aims of this research were to reveal: (1) the competencies profile of autotronic engineering at vocational high school; (2) the competencies profile of autotronic engineering required in world of work; and (3) the description of relevance between the competencies profile of autotronic engineering at vocational high school and the competencies profile of autotronic engineering required in world of work. This research was quantitative research with survey method. This research used descriptive analysis as data analysis method. The results of this research were as follow: (1) there were 13 competency items in Support of Autotronic System cluster that were taught at vocational high school and required in world of work, with percentage 81% out of 85% [irrelevant]; (2) there were 34 competency items in Engine Management System cluster that were taught at vocational high school and required in world of work, with percentage 70% out of 67% [relevant]; (3) there were 44 competency items in Chassis Management System cluster that were taught at vocational high school and required in world of work, with percentage 70% out of 60% [relevant]; (4) there were 37 competency items in Comfort, Safety, and Information Technology cluster that were taught at vocational high school and required in world of work, with percentage 52% out of 63% [irrelevant]; and (5) there were 4 competency items in VCS Cluster that were taught at vocational high school and required in world of work, with percentage 27% out 59%. <w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent

Kaji teoritis EMS (Engine Management System) dengan variasi temperatur air pendingin dan beban kerja pada kondisi stasioner pada kendaraan Toyota Avanza

EMS is a control system on the engine to regulate the proper mixing of air and fuel, accurate ignition timing, and control of other systems on the engine, according to the conditions and workload of the vehicle. The EMS component consists of sensors, ECU, and actuator. Engine control is fully regulated by the ECU. After getting data from the sensor, the ECU sensor will signal the actuator to control the engine, so that the work of the engine can be controlled according to the conditions of the engine. The effect of the cooling water temperature sensor is very large at stationary (Idle Speed Control/ISC). This research method is carried out by varying the temperature of cooling water (Engine Coolant Temperature/ECT) to get the mass of gasoline, air mass, air fuel ratio, engine speed, ignition angle, and gasoline consumption at each ISC load. The results of the research and data processing show that gasoline consumption will decrease every time the cooling water temperature increases. The AC (Air Conditioner) load ranges from 1,123 x 10-2 to 2,164 x 10-2 kg/hour, the power steering load ranges from 6,311 x 10-3 to 9,482 x 10-3 kg/hour, the electrical load ranges from 6,608 x 10-3 to 7,876 x 10-3 kg/hour and without load ranges from 6,024 x 10-3 to 7,920 x 10-3kg/hour. From these data it can be concluded that the effect of the ECT sensor is very large on engine performance at stationary rotation (ISC).Keywords: Sensor, ECU, Actuator.