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Characteristics of a coherent jet enshrouded in a supersonic fuel gasFei Zhao1,2,Rong Zhu3,Wen-rui Wang41. Key Laboratory of Fluid Interaction with Material, University of Science and Technology.... School of Mechanical Engineer, University of Science and Technology Beijing摘 要:Based on a current coherent jet, this study proposes a supersonic combustion(SC......
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纳米氧化锌的气流粉碎改性及应用研究 李庆华1,张治军1,刘丰1,苏小莉2,许石豪1,曹智1 (1.河南大学,特种功能材料教育部重点实验室,河南,开封,475001;2.济源职业技术学院,冶金化工系,河南,济源,454650) 摘要:利用气流粉碎改性工艺,以硬脂酸为改性剂,对纳米氧化锌进行解团聚和表面改性,并借助SEM,XRD,FT-IR和激光粒度分析等对改性产品进行了表征,探讨了改性纳米氧化锌在天然橡胶中的应用.结果表明,与改性前相比,改性纳米氧化锌的解团聚效果明显;颗粒表面亲油疏水,在有机溶剂中有较好的分散性;并且能较好地提高天然橡胶的硫化性能和力学性能.证明该工艺对纳米氧化锌进行表面改性是可行的. 关键词:纳米氧化锌; 气流粉碎改性; 硬脂酸; ZnO nanoparticles; jet grinding and surface modification; stearic......
Optimization of Abrasive Water Jet Cutting of Ductile MaterialsAsif IQBAL11. Department of Mechanical Engineering, Eastern Mediterranean University摘 要:Full factorial design of experiments was developed in order to investigate the effects of jet pressure, abrasive mixing rate, cutting feed, and plate thickness upon three response variables, surface......
and Hydropower Engineering, Hohai University, Nanjing 210098, China) Abstract: Through adding a jet pipe on the blade, a blade stall delay control vertical axis wind turbine was designed on the basis... jet pipe on blade has significant effects on delaying laminar flow separation. Key words: stall delay control; jet pipe; vertical axis wind turbine; wind energy utilization coefficient; aerodynamic......
重堵塞效应在0.77Sspan先出现回流,轮缘区回流现象是驼峰区内最严重的. 图6 不同截面位置下混流泵轴面速度轴向分量分布特性 Fig. 6 Distribution characteristics of axial component of meridional velocity of mixed-flow water jet pump at different cross-sections..., 13(1): 744-762. [6] 金平仲. 船舶喷水推进[M]. 北京: 国防工业出版社, 1986: 21-40. JIN Pingzhong. Ship water jet propulsion[M]. Beijing: National Defense Industry Press, 1986: 21-40. [7] 王立祥. 喷水推进及喷水推进泵[J]. 通用机械, 2007(10......
标志码:A 文章编号:1672-7207(2018)07-1815-08 Experimental study on diesel jet controlled compression ignition phase of premixed diesel-based fuels LONG Wuqiang1... Engineering Research Center of Shipbuilding, Dalian University of Technology, Dalian 116024, China; 3. Liaoyang Xinfeng Technology Co., Ltd., Liaoyang 111200, China) Abstract: A jet controlled compression......
Numerical simulation:preparation of La2O3 in a jet pyrolysis reactorChao Lv1,2,Zi-Mu Zhang1,Qiu-Yue Zhao1,Zhi-He Dou1,Ting-An Zhang1,Hong-Liang Zhao11. Key Laboratory of Ecological Utilization...="ChDivSummary" name="ChDivSummary">Based on the technique for preparing La Cl3 via direct pyrolysis of rare earth chloride solution, a jet pyrolysis reactor was designed and the intra-reactor......
梅钢180m2烧结机烟气脱硫系统控制滕新蔚1(1.上海市上海宝钢工程技术有限公司环保事业部)摘 要:以上海梅山钢铁股份有限公司3#烧结机烟气脱硫工程为例,介绍了气喷旋冲湿式石灰石-石膏法烟气脱硫技术在大型烧结机烟气脱硫工程中的运用,阐述了烟气脱硫工程中各主要子系统--烟气系统,吸收塔系统,浆液制备系统和回收水系统的控制策略及关键控制点.重点描述了增压风机前导叶挡板开度,吸收塔液位,浆液pH值,温度,密度与脱硫效率和水平衡的相关性,以及相关的控制方法,并从控制系统的硬件配置,系统结构和控制流程等方面论述了大型烧结......
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