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本文概述了当前天然气燃烧的低NOx排放研究现状,评述了各自的特点,指出了解决问题的重要努力方向。 相似文献
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Identifying the flow patterns is vital for understanding the complicated physical mechanisms in multiphase flows.For this purpose,electrical capacitance tomography(ECT) technique is considered as a promising visualization method for the flow pattern identification,in which image reconstruction algorithms play an important role.In this paper,a generalized dynamic reconstruction model,which integrates ECT measurement information and physical evolution information of the objects of interest,was presented.A generalized objective functional that simultaneously considers the spatial constraints,temporal constraints and dynamic evolution information of the objects of interest was proposed.Numerical simulations and experiments were implemented to evaluate the feasibility and efficiency of the proposed algorithm.For the cases considered in this paper,the proposed algorithm can well reconstruct the flow patterns,and the quality of the reconstructed images is improved,which indicates that the proposed algorithm is competent to reconstruct the flow patterns in the visualization of multiphase flows. 相似文献
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韩振兴 《中国新技术新产品》2012,(21):104-104
在现代电厂的运行中,锅炉结渣是电厂锅炉运行中普遍的问题。锅炉结渣将造成锅炉运行经济性与安全性受到影响,严重时还将导致严重事故的发生。针对现代电厂锅炉运行中结渣问题对电厂运行的应用,本文就电厂锅炉结渣问题进行了简要论述。 相似文献
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用稳态法进行了竖直平行平板间加扰流柱的抽吸式自然对流换热实验研究,全面考虑了包括辐射损失在内的各项修正,得到了精度不低于10%的经验公式。实验发现,对于不加扰流柱的平行平板通道,当温差大于50℃时,换热系数随间距的变化存在极值,小间距加扰流柱时,扰流柱对流动的阻滞起主要作用,换热系数低于无扰流柱时的值。 相似文献
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智能监控系统对于提升煤矿生产效率、减少煤矿事故有着重要作用。分析传统煤矿生产运输的主要缺点,提出新的智能监控系统设计理念,对监控系统设计中的关键技术:监控动画的一致性、上位机的编码、下位机的硬件进行具体分析,并介绍智能监控系统的应用前景,为该系统的设计提供参考。 相似文献
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