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gas heat radiation
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  相似匹配句对
     Application and analysis of gas heat pumps
     燃气热泵的应用与分析
短句来源
     Heat of Waste Gas in Foundry and Its Utilization
     铸造厂的炉气余热及其利用
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     Radiation synovectomy
     放射性滑膜切除术
短句来源
     ray radiation.
     因而可能是一种潜在的辐射防护剂。
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     (H)radiation control.
     H ,放射对照。
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A mathematical model to predict soot emission,soot and gas heatradiation transfer in DI diesel engines was developed on the basis of amultizone combustion model with two submodels—soot formation and oxida-tion submodel and soot and gas emissivities calculation submodel.Using thismodel the soot emission of an actual diesel engine at different injectiontiming was calculated,good agreement was achieved between these computa-tions and the test data.The model was also applied to predict the soot emis-sion,soot and...

A mathematical model to predict soot emission,soot and gas heatradiation transfer in DI diesel engines was developed on the basis of amultizone combustion model with two submodels—soot formation and oxida-tion submodel and soot and gas emissivities calculation submodel.Using thismodel the soot emission of an actual diesel engine at different injectiontiming was calculated,good agreement was achieved between these computa-tions and the test data.The model was also applied to predict the soot emis-sion,soot and gas heat radiation from low heat rejection(LHR)dieselengine and resulted in that the soot emission decreased while the ratio ofthe heat radiation to total heat transfer increased significantly with theincrease of percentage reduction of heat transfer.

本文给出了预测直喷式柴油机碳粒排放及碳粒和气体辐射传热的实用化数学模型。该模型以多区燃烧模型为基础,通过补充各区的碳粒和气体浓度,碳粒和气体发射率等的计算子模型,使程序功能获得扩大。用这个模型对一台实际柴油机不同喷油正时下的碳粒排放作预测,结果与实测值相吻合。本文还给出了预测和部分实测的低散热柴油机碳粒排放及碳粒和气体辐射传热的变化结果。在低散热柴油机中,碳粒排放将下降,但辐射传热量与总传热量之比会增加。

Based on the research to microscopic mechanism of gas heat radiation, the model of harmonic oscillator was established to study and calculate the heat radiative characteristics of flue gas. It is proved theoretically that the spectrum of heat radiation depends on the inherent vibrating frequency, plasm frequency, damping constant and the thickness of gas. Increasing the pressure or the thickness of gas and decreasing the temperature can improve the selectivity of gas...

Based on the research to microscopic mechanism of gas heat radiation, the model of harmonic oscillator was established to study and calculate the heat radiative characteristics of flue gas. It is proved theoretically that the spectrum of heat radiation depends on the inherent vibrating frequency, plasm frequency, damping constant and the thickness of gas. Increasing the pressure or the thickness of gas and decreasing the temperature can improve the selectivity of gas radiation effectively.

从对气体热辐射的微观机理的研究出发 ,利用谐振子模型对气体燃烧产物的热辐射特性进行了研究与计算 ,结果表明 :气体的热辐射波谱取决于气体分子的固有振动频率、等离子体频率、阻尼系数以及气层厚度 ,提高压力、气层厚度和降低温度可以有效地改善气体热辐射的选择性。

 
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