Effect Of Air Velocity And Equivalence Ratio On Solid Waste Combustion

Wong, Adam Yung Seng (2009) Effect Of Air Velocity And Equivalence Ratio On Solid Waste Combustion. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Our world currently produced large and increasing amount of waste, either in the form of solid, liquid or gas. These wastes can be treated in various methods according to its classification. One of the most popular methods is the gasification process which is not only able to burn up the waste, but also have the potential to generated energy. Therefore, this project is aim to determine the optimum operating parameters of a gasifier for different air velocity with wood as the solid waste. The gasifier’s mode of operation had been determined in the project. The problem to be solved is to obtain the maximum effiency with the minimum production of product gases. Among the scope in this report is running of experimental work using various air velocity as the operating parameter as well as the determination of the gasifier mode operation from the equivalence ratio. The temperature distribution at the axial and outlet of the gasifier and the gasifier’s performance will also be determine. Several methods are used in conducting this test such as variation of the blower air intake and outlet’s diameter to produce different air velocity and the usage of both thermocouples and data logger in temperature measurement . Anemometer is used in determined the air velocity. There are five air velocities used in the project namely 0 m/s, 3 m/s, 4 m/s, 5m/s and 6 m/s. The optimum operating parameter obtained in this project is 4 m/s, which has equivalence ratio of 0.32. It also has maximum axial temperature of 710.61°C and 354.63°C at the outlet temperature. Meanwhile, the performance of the laboratory scale UTEM gasifier does have variations from actual industrial gasifier.

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