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我们介绍了在加热炉中加热用燃料消耗最佳化的模型,它是利用Zelezarna Ravne的计算机控制系统进行的,模型的定义是根据炉子中传热的规律而得。在此,我们仅处理了传热的辐射部分,对传热的对流部分,我们假设它在整个温度范围是恒定的。进行模型设想的时候,我们没有考虑到炉中过程的整个理想加速,而是尝试接近实际状态。我们部分地考虑到烟气的离解作用、烟火效应和通过炉墙的动力损耗。我们根据传热模型得到的结果与测量值的差别,都在技术误差范围之内,误差范围受被测物和测量条件的限制。燃料消耗的最佳化是根据输入炉内的瞬时热利用而定的,并且对于相应状态应该是极大值。在加热曲线通过加热材料的变形点过渡时,应该考虑到物理转变和因炉料而必需输入的热量。
We describe a model for optimizing fuel consumption for heating in a furnace, which is done using a computerized control system from Zelezarna Ravne. The definition of the model is based on the laws of heat transfer in the furnace. Here we deal only with the radiated part of the heat transfer and for the convection part of the heat transfer we assume it is constant over the entire temperature range. While modeling the model, we did not consider the entire ideal acceleration of the process in the furnace, but instead tried to approach the actual state. We consider, in part, the dissociation of flue gas, the pyrotechnic effect and the power loss through the furnace wall. The difference between the result and the measured value that we get according to the heat transfer model is within the technical error range, and the error range is limited by the measured object and the measurement conditions. Fuel consumption optimization is based on instantaneous heat input into the furnace, and for the corresponding state should be a maximum. When the heating curve transitions through the deformation point of the heating material, physical changes and the amount of heat that must be supplied due to the charging material should be taken into account.