Installing a catalytic converter in the exhaust is a typical method of reducing engine exhaust emissions. Catalytic converters have been shown to lower exhaust pollutants while enhancing engine performance. The influence of the number of brass catalyst plates (Cu-Zn) on the Performance of the commercial Yamaha Jupiter MX motorcycle engine manufactured in 2007 was investigated in this study. The catalyst is installed in the motorbike exhaust, with the number of catalyst plates varying between 5 and 8, and a conventional uncatalyzed exhaust serving as a comparison. Torque, power, specific fuel consumption, and thermal efficiency are among the performance factors that will be considered. A prony brake dynamometer was used to conduct torque and power measurements. The results indicate that exhaust with eight catalyst plates can improve engine performance more than an exhaust with five catalyst plates. Furthermore, exhausts equipped with eight catalyst plates can boost engine efficiency by an average of 17.65%. Thus, increasing the number of catalyst brass plates improves the machine's efficiency.
Pada proses bubut, seluruh energi yang digunakan untuk pembentukan geram diubah menjadi kalor. Hal ini menyebabkan suhu pada zona pemotongan akan meningkat. Kalor yang dibangkitkan selama proses pemesinan bergantung terutama pada jenis pahat, material benda kerja, dan parameter proses seperti kecepatan potong, kedalaman potong dan gerak makan. Temperatur tinggi yang terdistribusi dengan baik selama proses pembubutan, memiliki pengaruh yang penting terhadap tegangan pada mata pahat. Maka dari itu perlu dilakukan analisa pengaruh sudut geram terhadap tegangan pada proses pembubutan titanium dengan cara mengkomparasi hasil teoritis dan simulasi menggunakan Autodesk Inventor 2016.Pada penelitian ini, gaya pemotongan yang digunakan adalah pemotongan orthogonal. Variasi sudut utama pemotongan yang digunakan 5°, 10° dan 15°. Berdasarkan dari perhitungan secara teoritis, gaya potong maksimum (Fc) yaitu 1720 N untuk sudut geram (γ) 50, dan terjadi penurunan gaya potong setiap kenaikan sudut geram (γ). Dari hasil simulasi yang dilakukan, tegangan maksimum terjadi pada sudut potong 15°, sebesar 1368,462 N/mm2 , terjadi kenaikan tegangan setiap kenaikan sudut geram (γ)
Air emission, generated by industrial sector, is one of the main contributors of ambient air quality degradation. In order to minimize the impact to its surrounding, the company regularly should conduct an air emission monitoring activity by measuring the hazardous compound concentration. The sample should be taken in a reference plane located two diameter from the outlet. The sampling of air emission by using isokinetic method cannot be conducted when the swirling flow is existed; the streamline is also should be uniform and vertical. Flow straightener with difference inclination angles, 0°, 15°, and 30°, are suggested to condition the streamline and fulfill the requirements. A computational simulation conditions with no flow straightener and with three flow straighteners are conducted to overview the influence of flow straightener inclination. Based on the analysis these inclinations are effectively improving the uniformity of velocity at reference plane. In other side these inclinations are causing the increasing of helicity as well as streamline inclination.
Penelitian ini bertujuan untuk menganalisa kinerja penjejakan lintasan mobile robot, dan sebagai pembanding sensor bluetooth digunakan untuk mengendalikan mobil robot dengan menghubungkan dengan android sebagai pengendali. Metode penelitian yang di gunakan adalah kualitatif dengan teknik dokumentasi pengujian yang di lakukan dan mencatat data yang di dapat. Dari hasil penelitian ini di dapatkan bahwa jarak kendali sensor bluetooth mencapai 140 meter dan mobile robot dapat mengikuti lintasan dengan akurat.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.