P. Puspitasari, M.I.N. Sasongko, G.A. Kurniawan, A. Andoko, D.I. Tsamroh
The growing number of motor vehicles, particularly the exhaust gas as a result of incomplete combustion of fuels, has a very adverse impact on the environment. One effort to reduce exhaust emission levels is by applying a catalytic converter to the exhaust system. MnO is a chemical mixture that can be applied to a catalytic converter to reduce exhaust emissions because it is capable of binding CO and HC contained in motorcycle exhaust gases. This research was an experimental research aiming to investigate the difference in emission level of CO and HC between a motorcycle with and without a catalytic converter. The types of fuel used were RON 88 and RON 92. The results showed that the application of MnO as a catalyst could reduce the level of CO significantly in RON 88, i.e. 24.36%, and the level of HC in RON 88 and RON 92, i.e. 82.08% and 38.14 % respectively. © Published under licence by IOP Publishing Ltd.
Mechanical Engineering Department, Engineering Faculty, Malang State University, Semarang Street 5, East-Java-Malang, Indonesia; Center of Nano Research and Advanced Materials, Malang State University, Semarang Street 5, East-Java-Malang, Indonesia; Master Program, Postgraduate Program, Malang State University, Semarang Street 5, East-Java-Malang, Indonesia
