Abstract

In the recent high oil era, fuel reduction, energy saving and environmental pollution reduction are the main tasks of this era. Even though it has a lot of heat in the exhaust gas of marine engines and boilers, it is discharged through the atmosphere, and the energy loss is very large. To this end, Economizer is essential for waste heat recovery, and there is a “Soot Cleaning System” to increase efficiency. The purpose of this paper is to verify the efficiency by analyzing the flow of exhaust gas inside the mill with the automatic soot blower installed in the mill. In this study, soot blowing inside the economizer was simulated using ANSYS CFX(V.18.1), a general-purpose flow analysis engineering program, and the temperature, pressure and velocity fields in the economizer were analyzed.

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