传热系数

原油比热对管道传热系数及加热炉热效率的影响

The Impact of Specific Heat of Crude Oil upon the Pipeline Heat Conductivity and the Heat er 's Effeciency

采用移动加热板式（Movingheating－planetype）条件下的颗粒热传递模型推算大型旋转圆盘干燥机的传热系数。

The heat transfer coefficient of a large pan rotary dryer was calculated by using particle heat transfer model of moving heating-plane type .

热塑性弹性体SIS聚合胶液传热系数的关联

Heat transfer coefficient correlation of SIS thermoplastic Elastopolymer colloidal solution

传热系数和CHF随着管道尺寸的缩小而减小。

The CHF decreased with reducing in tube size .

建筑节能设计中外墙平均传热系数Km值影响因素分析

Analysis on the Factors Affecting the Mean Thermal Transmittance ( Km ) of the External Walls in the Energy-saving Buildings

介绍了生活锅炉中相交换热的传热系数K的数值及影响因素，应用相应的K值计算的相变热面面积与实际需求基本相符，使设计更趋合理与完善。

This paper deals with the optimization of heat-transfer coefficient K as well as other affecting factors , thus making the arrangement of phase-changing surfaces in boiler feasible .

为保证管线安全运行，建议设立一凝点测试岗；同时应定期校验总传热系数K值。

To ensure the security of pipeline working , I suggest a solidifying-point testing post should be established and quotiety of the general heat passing should be tested regularly as well .

直接从传热系数K的测定值中将气侧放热系数αc分离出来，从而避免了测量平直波纹翅片平均壁温的困难。

Air side heat transfer coefficient is directly separated from experimental data of overall heat transfer coefficient K , therefore , the difficulty of measuring the mean wall surface temperature of flat wavy fins has been avoided .

根据实验数据，提出了计算小直径固定床的有效导热系数λer和壁传热系数αw的三种方法。

Three methods are derived for calculating the effective thermal conductivity λ _ ( or ) and the wall heat transfer coefficient α _w of fixed bed of small diameter from experimental data .

宽调节比燃烧器空气动力场的数值模拟脉冲燃烧具有燃烧强度大，传热系数高，NOx排放量小，能自动吸气及排气等优点，也有调节比小，噪音大等缺点。

There are many advantages with pulse combustion such as high combustion intensity , high heat transfer , coefficient low NOx emission and self-aspiration of air and flue gas .

对中冷器传热系数K值进行误差分析表明，K值误差是换热量测量误差的3倍以上。

Error analysis of intercooler ′ s heat transmission coefficient K indicates that the error of the value of K is more than 3 times as big as the error of measured value of the heat exchange capacity .

介绍了锅内间接换热面中对传热系数k的影响因素和k值的大致应用范围，以及锅内间接换热面在锅炉设计和应用中的一些情况。

The paper deals with the affecting factors of heat-transfer coefficient k in phase-changing surfaces , and application of the optimization of k , and introduces some cases about application and design of phase-changing surfaces in commercial or domestic boiler ?

另外，通过对实验数据回归得到了管外水膜传热系数计算关联式，回归相关系数R为0.98，标准偏差为7.5%。

In addition , via regression analysis of the experimental data , the correlation equation for calculating the heat transfer coefficient of the water film was obtained , its regression correlation coefficient R is 0.98 and the standard deviation is 7.5 % .

50年代，国内硫酸装置中气体换热器的设计，主要参照苏联规范，传热系数仅9.9～12.8W/（m~2·K）。

In the 1950s , the gas heat exchanger for domestic sulphuric acid plant was designed according to the U. S. S. R. specification and only had a heat transfer coefficient as low as 9.9 ~ 12.8W / ( m2 . K ) .

实验结果表明，转子转速及进料量对设备总传热系数K及蒸发强度EI影响显著，各料液均存在最佳进料量。

The experimental result shows that the rotor velocity and feed rate affected the overall heat transfer coefficient K and evaporation intensity EI of the evaporators greatly , there was an optimum feed rate for each feed liquid .

用POM颗粒研究了颗粒粒径对重力热管传热系数的影响，发现蒸发段传热系数随粒径的增大会先减小后增大，而冷凝段传热系数的变化则相反。

As the particle diameter increases , the heat transfer coefficientof the evaporation section first decreases and then increases , but the change of heattransfer coefficient in condensation section goes the opposite .

微孔硅酸钙保温材料实测总传热系数小于1.0W／（m2·K），但局部缝隙处表面温度和散热损失都较高。

The measured total heat transfer coefficient of insulating material of microporosity calcium silicate is less than 1 . 0W / ( m2 · K ), but both the surface temperature in local cracks and the radiating heat loss are high .

分析了加速工况和稳态工况下模型的区别，提出了加速工况时对稳态工况下模型的空燃比AF、充气效率、传热系数进行修正的方法。

The difference between stability model and accelerating model was analysis . Compared with stability condition , some revise methods concerning Air / Fuel ratio , volumetric efficiency and heat transfer coefficient under accelerating condition were put forward .

本文提出屋面综合换热参数YR及最大允许传热系数K（R.max），从理论上得出了上海气候区住宅建筑屋面保温推荐指标。

In this paper , a comprehensive heat exchange parameter Y_r and the maximum allowance for heat transfer coefficient of the roof are created for the residential building in the Yangtze river vally , by which the recommended roof thermal insulation of residential buildings for Shanghai climate zone is obtained .

用《数理统计方法》对地板辐射采暖实验数据进行曲线拟合，给出了地板辐射采暖传热系数K值的回归曲线方程，为实现地板辐射采暖系统的优化设计提供了理论依据。

The regression curve equation of floor radiation thermal conductivity K has been obtained through curve simulation based on experimental data of the floor radiation heating system by using the mathematical statistics method . It provides the theoretical base to implement the optimal design of the floor radiation heating system .

根据对传热系数和膜孔内传质机理的研究，最后得到了真空膜蒸馏脱除水溶液中VOC全过程的数学模型。

Finally , by studying the heat transfer coefficient and the mechanism of mass transfer through the membrane pores , a complete mathematical model was proposed for the removal of VOC from dilute aqueous solutions by VMD .

与实测数据相对比，文中的计算具有足够的精确性。计算显示，如果采用同样的玻璃系统，U-PVC窗具有最佳的保温性能，热断桥型铝合金窗也具有很低的传热系数；

Calculation shows U-PVC frame produces window with best insulating performance , window made of heat broke aluminum frame also has a very low U-value .

当超声波功率为300W时，传热系数达765W/（m2.K），达到最佳传热效果。

When the ultrasonic wave power is 300 W , the heat transfer coefficient will be 765 W / ( m ~ 2 · K ), achieving an optimum heat transfer effect .

利用该模型可以在缺乏相间传热系数的情况下，计算出最小液-汽比及传质单元高度HTU。

The minimum liquid & vapor ratio and the Height of Mass Transfer Unit " HTU " can be obtained in lack of interphase heat transfer coefficient by the model .

基于上述建立的机舱平均对流传热系数和主流温升经验关联式，可以使发动机冷却系统1D模型脱离耦合环境独立运行，为机舱散热研究和冷却系统设备优化提供更加有效、快捷的计算方法。

Based on average heat transfer coefficient and bulk temperature associated formulas of engine cabin , 1D model of engine cooling system can work independently divorcing from coupling environment . It can provide more effective and efficient method for simulating cooling performance and optimizing equipment in engine cooling system .

针对自行设计的薄膜蒸发器，以水为物料，采用大型CFD软件CFX4.4，初步探讨了刮板转速、进料量、进料温度等参量对薄膜蒸发器蒸发段长度和加热段膜内传热系数的影响。

Based on the designed thin film evaporator , the influence of the rotor speed , feed rate and liquid inlet temperature on evaporation length and film heat transfer coefficient was primarily discussed using the software CFX 4.4 with water as feed liquid .

接着，在此实验平台上进行了水平放置的紫铜光滑圆管与R-113凝结传热系数的测量实验，得到了一些凝结传热的实验数据，并根据实验数据求解出相应的凝结传热系数。

Then the experimental study on the R-113 film condensation heat transfer on horizontal smooth pure copper tubes is performed with this system . The condensation heat transfer coefficients are obtained according to the experimental data .

《建筑外窗保温性能分级及其检测方法》GB8484-1987规定窗户传热系数检测在模拟严寒地区冬季条件下进行的，与夏热冬暖地区的实际使用情况有较大差别；

Traditionally , heat transfer coefficient is measured in the laboratory under the estimated extremely cold winter environment condition of winter cold area in accordance with Graduation and test method for thermal insulating properties of windows ( GB8484-1987 ) .

滴状冷凝传热系数的实验研究及分析

Experimental Investigation and Analysis on Heat Transfer Coefficient of Dropwise Condensation

连铸结晶器综合传热系数的定量分析

Quantitative Analysis for Integrated Heat Transfer Coefficient in Continuous Casting Mould