Abstract
The most common fuel in crop drying is natural gas. Replacing this for renewable energy is both environmentally and economically beneficial. As a by-product of crop cleaning during harvesting, a source of energy suitable for combustion can be obtained from plant parts that are otherwise treated as waste. Solid fuel requires a special fuel system. Our goal is to find an optimized design for cleaning waste based on the existing solid fuel boilers, and in the framework of this work, the optimal design of the fire box passages is our narrower goal. To do this, we use CFD modelling, which is used to estimate the flow characteristics based on a 3D model in addition to the known operating parameters. By modifying the geometry between given boundaries, we find the ideal design within the boundaries allowed by the construction.
Highlights
As an alternative to fossil energy sources, biofuels have emerged in many areas
Combustion is a common method of energy production because of its good adaptability and its ability to operate over a wider range
The aim of our work is to improve the combustion of agricultural by-products by modifying the geometry of the firebox
Summary
As an alternative to fossil energy sources, biofuels have emerged in many areas. As a fuel for internal combustion engines for electricity generation or heating, for residential and industrial use [1, 2]. Environmental protection, in poorer areas accessibility and price are the main reasons for using biomass. The main methods of converting solid biomass into energy are: direct combustion, pyrolysis, gasification [3, 4]. Combustion is a common method of energy production because of its good adaptability and its ability to operate over a wider range. Fixed bed combustors are the most common solution as they are suitable for burning almost any solid fuel and are inexpensive to manufacture [3, 7, 8]. Fouling within the structure that degrade efficiency and can damage the internal structure due to their aggressive chemical properties [11, 12]
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