Development and Evaluation of Pollutant-Filtering Device for Gasoline-Powered Motorcycle

Abstract

INTRODUCTION

Motorcycles emit smoke that contains hydrocarbons, carbon monoxide, and carbon dioxide, which are harmful to one's health and to the environment. Considering this information, the researchers designed, constructed, and tested a filtering device using crushed chicken bones and eggshells as adsorbing materials.

METHODS

The pollutant-filtering device was designed and constructed based on a pre-set specification. To come up with an exhaust pipe filter, the crushed eggshells and crushed chicken bones were combined inside the circled fine screen. Then, the circled fine screen containing the materials needed were put inside the can and then sealed. After sealing, the device was attached at the end of the motorcycle's exhaust pipe. A motorcycle with gasoline was subjected to the smoke emission test. With the use of Automotive Emission Analyzer, the hydrocarbon reading obtained without using the device and the number of hydrocarbons emitted with the use of the device were recorded and compared.

RESULTS

Results show that before using the pollutant-filtering device, the hydrocarbons content of smoke emitted by single gasoline-powered motorcycle was measured and the following means are obtained: HC ppm-702.66, CO%-1.29, and CO2 %-1.8, and O2 %-12.28. On the other hand, the means obtained when the device was used are as follows: HC ppm-65.66, CO %-0.44, CO2 %-0.9, and O2 %-20.46.

DISCUSSIONS

Results show the following success rates of each pollutant: HC ppm is reduced by 90.86%, CO is reduced by 62.02%, and CO2 is reduced by 50%. What's interesting is that O2 is increased by 66.61%. This only reveals that the device made from Crushed Chicken Bones and Crushed Eggshells is effective in filtering and absorbing. This means that the Pollutant-Filtering Device is effective in reducing hydrocarbons pollutants from a gasoline-powered motorcycle.