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Pengaruh persentase campuran kulit kayu gelam (Melaleuca Cajuputi) dan cangkang karet (Hevea Brasiliensi) terhadap karakteristik pembakaran briket Misbachudin Misbachudin; Raybian Nur
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (758.2 KB) | DOI: 10.24127/trb.v9i1.1071

Abstract

Development of alternative energy sources that can be one of the potential to produce energy in overcoming the fuel energy crisis. The availability of a lot of rubber trees and gelam bark waste in the area of South Kalimantan so it needs to be used to be processed as raw material for briquettes. In this research using a mixture of rubber shell briquettes and gelam bark waste by varying the weight percentage of the mixture. Tests carried out by burning the briquette on a heating element, to determine the characteristics of combustion in briquettes which include the time of initial ignition, the length of the combustion process, and the change in mass of the briquette to ashes. The results show the length of time of starting the ignition and the length of time the combustion process has decreased with an increasing percentage of gelam bark mixture that is during 13.7 s with a burning time of 5.54 minutes. This is due to fibrous and brittle gelam wood bark so it is flammable and contains volatile matter. High lignin content in the rubber shell leaves more ash than gelam bark which is equal to 5.75 grKeywords : Rubber shell, gelam bark, briquettes, alternative energy, combustion characteristics.
PENGARUH PERUBAHAN SATUAN TIMING BUKA TUTUP KATUP TERHADAP KONSUMSI BAHAN BAKAR DAN EMISI GAS BUANG PADA MESIN SEPEDA MOTOR SHOGUN 125cc M. Noor; Misbachudin ,
JMIO Vol 1 No 1 (2019): JMIO Agustus 2019
Publisher : Program Studi Teknik Otomotif, Politeknik Hasnur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46365/jmio.v1i01.334

Abstract

Motorcycle is a means of transportation that is driven by an engine. This type is widely used because the price is relatively cheap. Generally, motorcycles use gasoline fuel so that the principal works is no different from motorcycles in cars. The 4-stroke combustion motor is an internal combustion engine, which in one combustion cycle will experience four piston steps, producing one effort step or one fuel combustion. A valve is an engine component that functions as a passageway of a mixture of fuel and air entering the cylinder or as a passageway from the combustion gas exiting the cylinder. Changing the valve timing unit has various effects on fuel consumption and exhaust emissions. So, from the results of research that has been done shows that advancing the unit of valve opening and opening time produces the most economical fuel consumption that is, 0.0663570 ml / sec and the exhaust gas CO2 = 0.4%, CO = 0.05%, HC = 65%, O2 = 20.90%. Keywords: combustion engine, fuel consumption, exhaust emissions, valve
PENGARUH VARIASI CAMPURAN OLI SAMPING DENGAN BAHAN BAKAR PERTALITE TERHADAP SUHU MESIN DAN EMISI GAS BUANG PADA YAMAHA F1ZR 110CC Misbachudin
JMIO Vol 1 No 2 (2020): JMIO Mei 2020
Publisher : Program Studi Teknik Otomotif, Politeknik Hasnur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46365/jmio.v1i02.376

Abstract

Tujuan penelitian ini adalah untuk mengetahui perbandingan suhu mesin dan emisi gas buang dengan variasi campuran oli samping yang berbeda dengan bahan bakar pertalite. Umumnya sepeda motor menggunakan bahan bakar bensin sehingga prinsip kerjanya tidak berbeda dengan motor pada mobil. Yang dimaksud sepeda motor 2 tak adalah sepeda motor yang mendapatkan satu kali tenaga hasil dari pembakaran gas, motor 2 tak ini memerlukan dua kali gerakan piston naik dan turun, dengan sekali putar poros engkol. Oli samping merupakan komponen yang sangat penting, Tanpa oli sampingmotor dua tak tidak dapat melakukan pembakaran secara sempurna. Adapun oli samping yang baik digunakan untuk mendinginkan temperatur mesin yaitu oli full syntethic Ester (Motul) karena suhu mesin semakin rendah dan mesin menjadi dingin, dengan campuran 20cc atau 30cc untuk 1 liter pertalite, dan suhu mesin paling tinggi yaitu pada oli semi synthetic (Idemitsu). Untuk emisi gas buang paling tinggi terdapat pada oli Motul yaitu 4.656 untuk CO dan 6.46 untuk CO2 pada campuran 30 cc, sedangkan untuk campuran 20 cc adalah 7.552 untuk CO dan 14.51 untuk CO2, dan emisi paling rendah terdapat pada oli Semi Synthetic (Idemitsu).
PENGARUH VARIASI CAMPURAN OLI BEKAS DAN BIOSOLAR TERHADAP KARAKTERSITIK UJI PEMBAKARAN DROPLET Akhmad Syarief; Ahmad Ramadan; Misbachudin Misbachudin
Scientific Journal of Mechanical Engineering Kinematika Vol 2 No 2 (2017): SJME Kinematika Juni 2017
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.65 KB) | DOI: 10.20527/sjmekinematika.v2i2.38

Abstract

This study aims to determine the effect of mixed used oil and biodiesel mixture on droplet combustion test characteristics. . This research was conducted by dripping the fuel at the tip of the thermocouple to form a droplet with a volume of 0.1 mm, then bringing the heater to the droplet to form a fire. This study aims to determine the influence of mixed oil and biosolar of flash point value, ignition delay time, burning rate and maximum fire height. This research used variation of used oil mixture 10%, 20%, 30%, 40% and 50%. The results show that flash point value increases with increasing percentage of used oil, which is influenced by the viscosity, density, and volatility of each variation of fuel mixture. The value of the ignition delay time increases with increasing percentage of used oil, which is influenced by the viscosity, density and volatility of each variation of fuel mixture. The burning rate value decreases with the increase of the used oil mixture, which is influenced by the viscosity, density, and volatility of each variation of fuel mixture. The maximum value of fire that can be achieved decreases, along with the increase of variation of used oil mixture and is influenced by viscosity, density and volatility value and each variation of fuel mixture.