不同含油率下,沸腾平均换热系数随质量含油率的增加而增加。
The average evaporation heat transfer coefficient decreases with the increasing of the oil concentration.
回转式空气预热器是高参数大容量电站锅炉广泛采用的尾部换热设备,漏风率高是该类设备的致命缺点。
The rotary air preheater, which is the widely used tail-end heat exchanging equipment in large capacity boilers with high parameters, has the fatal defect of a high air leakage rating.
结果表明:沸腾换热系数随着热流密度和质量流率的增加而增加,随着狭缝尺寸的增加而减小。
It was shown that heat transfer coefficient increases with increasing heat flux, mass flux and decreasing gap of the annular channel.
确定了影响多相循环换热系统中管束固含率的主要结构因素。
The main structural factors which would influence the solid holdup in the multiphase circulating exchanging heat system were confirmed.
物料加热表面受到对流冷却,并讨论了物料的吸收系数,折射率,导热系数,换热系数,物料表面辐射特性对温度场的影响。
The effects of absorption coefficient, refractive index, heat conductivity, convective heat-transfer coefficient and radiative properties of the surf ace on the temperature field are discussed too.
实验结果表明,初始横流率对肋粗糙表面的冲击换热有重要的影响。
The test results show that the impingement heat transfer from the rib roughened surface is considerably affected by the initial crossflow rate.
建立了连续换热式氨合成塔轴向最佳温度和最大合成率的优化模型,采用牛顿迭代法和龙格-库塔法对模型进行了数值解。
The optimal mathematical models on the axial optimum temperature and maximum synthetic rate for a continuous heat exchange ammonia converter were established.
同一含油率下,蒸发温度对平均换热系数影响不大。
The evaporation temperature has negligible effect on the average evaporation heat transfer coefficient at the same oil concentration.
计算表明,单基弹药内部最高温度比双基内部最高温度上升的快。讨论了对流换热系数、堆积尺寸、孔隙率等对弹药内部最高温度的影响。
Convection heat exchange coefficient, stack size and porosity's influence to the highest temperature in porous media are also discussed in this paper.
以实验方法调查了其换热系数强化率与外加电场强度、热通量及流动速度、油温、管型等因素的相关性。
The effects of electric voltage applied, heat fluxes, flow velocity and initial temperature of the oil on the heat transfer enhancement were fully investigated.
通过采用玻璃管和不锈钢管模拟分离式热管的蒸发段,对不同充液率和热流密度下,小螺旋管管内流体的流动与换热特性进行了实验研究。
Through the use of a glass tube and stainless steel tube a simulation was conducted of the evaporating section of the above mentioned heat pipe.
在传统液固两相流的研究成果基础上,建立起二元冰在水平管内换热的数学模型,同时针对二元冰在风机盘管中的输送情况,分析了输送速度、含冰率对于二元冰换热的影响;
Analyzed all kinds of effects on the pressure drop. Finally, draw the mathematical model of pressure drop4. Analyzed the effects of flow and ice packing fraction on pressure drop of fan and coil5.
在传统液固两相流的研究成果基础上,建立起二元冰在水平管内换热的数学模型,同时针对二元冰在风机盘管中的输送情况,分析了输送速度、含冰率对于二元冰换热的影响;
Analyzed all kinds of effects on the pressure drop. Finally, draw the mathematical model of pressure drop4. Analyzed the effects of flow and ice packing fraction on pressure drop of fan and coil5.
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