罩式退火爐熱過(guò)程數(shù)學(xué)模型與實(shí)驗(yàn)驗(yàn)證
[Abstract]:Considering the complicated geometry of the convection plate, a three-dimensional model was established, and the effects of flow rate, external diameter and temperature on the Nu distribution of Nusselle number were simulated by orthogonal test. It is concluded that the flow rate has the strongest effect on the three factors. Then, the variation of Nu with flow rate is analyzed, and the relationship between Nu and flow is obtained by fitting. In order to solve the problem of radiative heat transfer angle coefficient under complex geometry in furnace, the Monte Carlo method is used to set up a model to solve the radiation heat transfer angle coefficient in furnace, and finally, the heat radiation network method is used to solve the radiation heat transfer coefficient in furnace. The accuracy of the proposed model is verified by field experiments on thermocouple inserts. The results show that the temperature obtained by the simulation is basically consistent with the field measured value, and the model is proved to be accurate and reliable.
【作者單位】: 北京科技大學(xué)機(jī)械工程學(xué)院;北京科技大學(xué)冶金工業(yè)節(jié)能減排北京市重點(diǎn)實(shí)驗(yàn)室;
【基金】:中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(FRF-TP-14-021A1)~~
【分類號(hào)】:TG155.1
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