Effect Of Air Velocity And Moisture Content On Solid Waste Combustion

Muhammad Haziq, Abidin (2010) Effect Of Air Velocity And Moisture Content On Solid Waste Combustion. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, every country all over the world produces a very large amount of solid waste. This solid waste can be treated in various methods according to it classification. One of the most commonly use methods is the gasification process which not only burns the solid waste but also have potential to generate energy. Therefore, this project is aim to analyse the performance of gasifier by using coconut shell as fuel and considering two condition which is air velocity and moisture. Then analyse the product gases that release from the gasification process. The problem that needs to be solved is to analyse the maximum combustion. The scope in this project include running the experiment using varieties of air velocity and using difference of moisture content in solid waste. The equipment that will be use along with the gasifier is air blower, connection pipe, anemometer and data logger. The variety of air velocity can be produce by setting up the combination of air blower and the connecting pipe. Then burning process can be running with difference of air velocity. The thermocouple will measure the temperature every each level in the gasifier and send it to data logger. Data logger then directly sends the data to the computer to the software and displays the readings. Hence the performance of the gasifier can be analysed and identified the product gases release from the gasification process. Lastly, all the research that had been done were conclude where higher moisture content will result in higher moisture evaporation and the burning rate is inversely proportional to the moisture content. Meanwhile the increasing of air velocity will increase the burning rate but will decreasing back if the air velocity is too high. Gas emission of NO, NOx and CO is decreasing after increasing of air velocity except for O2. CO is inversely proportional to moisture content while O2 is directly proportional to moisture content.

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