| 1. | Surface coefficient of heat transfer
表面传热系数 |
| 2. | A calculation model of the coefficient of heat transfer between gas and stave body and inlaid refractory is built based on the substitution method of boundary condition
摘要基于边界条件替换方法建立了高炉冷却壁本体和捣打料与炉气之间的换热系数计算模型。 |
| 3. | The relation between temperature distribution and the loss factor of dielectric , the coefficient of heat transfer , output power , different modes , stress distribution are discussed
对回旋管输出窗的热应力进行了计算和分析,并对工作模式为h01模的回旋管输出窗在几种不同介质材料下的功率容量进行了计算。 |
| 4. | Analytical relationships are obtained for calculation of the coefficient of heat transfer for condensation in tube , the relative difference between the experimental value and the calculated value is smaller than + 15 %
关联出了相应的水平管内冷凝传热膜系数的计算式，计算值与实测值的偏差在15以内。 |
| 5. | And also meet experiment result well . the heat release from floor thought radiation is validated about 70 % by analyzing the surface coefficient of heat transfer with convection and radiation
随后，对低温辐射地板上表面的对流换热系数和辐射换热系数分析结果表明地板表面辐射散热量约占地板表面总散热量的70 。 |
| 6. | Since frosting is inevitable so long as some physical factors are satisfied , it will enlarge the resistance of airflow , cut down the airflow rate of air cooler and reduce the coefficient of heat transfer . in order to keep the refrigeration system run smoothly , frost must be removed
结霜只要满足一定的物理条件就是不可避免的，霜层增厚增加了空气的流动阻力，冷风机盘管流量减少，同时霜层增厚也会导致传热系数下降，因此为保持系统高效运行，除霜是必须的。 |
| 7. | The results indicate that the qualitative behavior in this process is similar to that observed in condensation of vapor at or above atmosphere pressure , the coefficient of heat transfer for condensation in tube , the coefficient of heat transfer in total increase with the increasing of heat flux density and vapor pressure . however , heat flux density and vapor pressure have a more significant effect on them
发现水平管内低压蒸汽冷凝过程与常压条件下蒸汽冷凝过程相同，管内冷凝传热膜系数、总传热系数随热流密度、蒸汽压力的增大而增大，但热流密度、蒸汽压力对低压蒸汽冷凝有着更为显著的影响，管外冷却水流量对其影响并不明显。 |
| 8. | The interactions between heat flux density , vapor pressure , vapor velocity and the coefficient of heat transfer for condensation in tube , the coefficient of heat transfer in total are investigated . the relationships between heat flux density and the total difference in temperature , the difference of temperature , pressure drop of vapor from the entrance of the tube to the exit are investigated as well
考察了冷却水流量、温度恒定条件下热流密度、蒸汽压力、蒸汽流速对冷凝传热膜系数及总传热系数的影响关系，同时考察了总传热温差、蒸汽进出口温差及压差随热流密度变化的关系。 |
| 9. | For better veracity of simulating model , model is used lookup - table module to calculate the thermodynamic character of refrigerant , and datas of experience and test is combined in the compressor module , also the coefficient of heat transfer changing by running parameter is decided by computational procedure . in addition , choosing congruence step size solves the divergence of simulation procedure
为了使仿真模型具有相当的准确性，模型中采用查表模块进行制冷剂热力性质计算，压缩机模块中将实验数据与经验计算数据相结合，通过程序运算确定冷凝器和蒸发器传热系数与运行参数之间的关系，并成功解决了仿真程序运行发散的问题。 |
| 10. | The disadvantage is that the coefficient of heat transfer is iow and the utilization factor is poor and the drying time so long . moreover because of the defect of structure , it can not be in conformity with the requirements of " gmp " . in order to overcome the shortcoming , we edsigned and developed the penetrating air stream box type drier on the basis of absorbing abroad advanced technology
在传统的水平流厢式干燥器中，气流只在物料表面流过，其缺点是传热系数低、热利用率差、物料干燥时间长且由于结构的缺陷，无法完全符合“ gmp ”药品生产规范。为了克服以上缺点。 |
