Optimization of the combustion process of heatmaster grate firing biomass furnace: computational analysis

马尼托巴省正在采取重大步骤，通过立法强制放弃煤和石油焦燃料，减少空间热能产生的排放。随着煤炭作为燃料即将消失，政府正在鼓励生物质转化，并可以用合格的生物质产品进行补贴，包括农业残留物，林业残留物和专用作物。虽然政府对资本成本的支持为转向生物质提供了关键激励，但尽可能有效地实现生物质的热生成至关重要。总体影响将是双重的：降低运营成本，这将有助于使生物质对那些采用生物质转化的人特别有吸引力，减少排放，这将加强政府关于污染控制的最初目标。 由于生物质炉转化的重要性现已确立，因此仍需要进一步改进该技术。有几个因素有助于生物质热发生器的整体性能，例如一致的燃料进料速率，燃烧室设计，空气喷射/分配，空气/燃料比，锅炉配置和原料灵活性。所有这些因素都有一定程度的相互依赖性，这使得这项技术的进一步发展具有挑战性。 拟议的研究使用计算流体力学（CFD）工具来更深入地了解将生物质燃料转化为可用热能的基本机制。这项CRD研究的最终目标是开发先进的知识，以进一步提高热效率，减少生物质炉排燃烧技术的污染物排放。这些农业残渣燃料系统的开发将通过允许清洁和高效的绿色能源生产，为农业工业释放一个主要的收入来源。它将通过出售农作物残茬作燃料而不是在田间燃烧来增加农民的收入;与此同时，它增加了生物质燃烧技术的市场份额。

The Province of Manitoba is taking significant steps to reduce emissions resulting from the generation of space heat by legislating the mandatory abandonment of coal and petroleum coke fuels. With the impending absence of coal as a fuel, biomass conversion is being encouraged by the government and can be subsidized with eligible biomass products including agricultural residue, forestry residue and purpose-grown crops. Although government support toward capital costs provides a key incentive for switching to biomass, it is critical that the heat generation from biomass is achieved as efficiently as possible. The overall impact will be two-fold; lower operating costs, which will help make biomass appear especially attractive to those adopting biomass conversion, and a reduction in emissions, which will enhance the original goals set out by the government regarding pollution control. As the importance of biomass furnace conversion is now established, further improvement of this technology is still required. There are several elements which contribute to the overall performance of a biomass heat generator, such as consistent fuel feed rate, combustion chamber design, air injection/distribution, air/fuel ratio, boiler configuration and feedstock flexibility. All these factors have a degree of interdependency which makes further development of this technology challenging. The proposed research uses computational fluid mechanics (CFD) tools to gain far greater insight into the fundamental mechanisms responsible of converting biomass fuel into usable thermal energy. The ultimate goal of this CRD research is to develop advanced knowledge to further improve thermal efficiency and reduce pollutant emissions of grate firing biomass furnace technology. Development of these systems for agricultural residue-based fuels will unleash a major source of revenue for agricultural industry by allowing clean and efficient green energy production. It will increase revenues for farmers by selling agricultural crop residues for fuel instead of burning them in the fields; while at the same time it increases the market share of biomass combustion technology.