Numerical investigation of the heat transfer performance of water-cooled incineration grates with various channel designs
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Numerical investigation of the heat transfer performance of water-cooled incineration grates with various channel designs

机译:具有各种通道设计的水冷焚烧炉热传热性能的数值研究

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Highlights?Cooling of incineration grates is investigated numerically.?Three different designs of cooling channels are considered.?3D CFD has been used to evaluate heat transfer performance.?Various mass flow rates and heat fluxes are considered.?The baffle channel is the best choice among three different designs.AbstractThis study investigates the effect of the geometry of the cooling channel on the cooling performance of a unit grate using a three-dimensional computational fluid dynamics approach. Three different geometries of the cooling channel, i.e., serpentine, wavy, and baffle channels are considered. To evaluate the cooling performance, evaluation indicators, including the maximum temperature, average temperature, temperature uniformity, and pressure drop are compared. In addition, figure of merit, i.e., heat transfer per unit pumping power, is also compared for three channel designs. According to these indicators, it is concluded the baffle channel is the best choice.]]>
机译:<![cdata [ 亮点 数值调查焚烧格栅的冷却。 考虑三种不同的冷却通道设计。 3D CFD已被用于评估传热性能。 考虑各种质量流量和热量通量。 挡板通道是三种不同设计中的最佳选择。 抽象 本研究调查了冷却通道几何形状的效果,使用三维计算流体动力学方法研究了冷却通道几何形状对单元格栅的冷却性能的影响。考虑了冷却通道的三种不同几何形状,即蛇形,波浪和挡板通道。为了评估冷却性能,比较评价指标,包括最高温度,平均温度,温度均匀性和压降。另外,对于三个通道设计,还比较了许多数字,即每单位泵浦电源的传热。根据这些指标,挡板渠道是最佳选择。 ]]>

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