convection heat transfer

convection heat transfer的基本解释

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对流传热

与convection heat transfer相关的网络例句 [注：此内容来源于网络，仅供参考]

The method of CFD numerical simulation is employed to replace experimental investigation. Hence, STAR-CD of the commercial software is used to simulate the outer flow field and heat transfer performance of integrated heat sink with heat pipes cooled by airflow. It is found that simulated results agree with experimental results well, which indicates that simulation method is reasonable and reliable. Further, simulated computations for different fin thickness, fin pitches and air velocities are performed to analyze their effects on heat transfer performance of heat sink. Finally, a new optimized structure of integrated heat sink with heat pipes is provided to meet future demands for cooling CPU and its heat transfer is also evaluated. For multi-heat source and higher dissipation power of electronic devices, the integrated heat sink with heat pipes attatched fins stagged in different positions of channels is presented and its flow and temperature fields are also simulated to enhance heat transfer. As a conclusion, all mentioned above are useful for the design of heat sink with excellent efficiency of heat dissipation and further research.

应用商业软件Star-CD对CPU集成热管散热器的外部流场和传热特性进行了数值模拟，将数值模拟结果和试验结果对比，验证了所提出的数值计算方法是可靠和可行的；利用此数值模拟方法对CPU集成热管散热器在不同散热翅片间距、厚度和气流速度下散热器的流动与传热性能进行了数值计算，分析了这些参数的变化对散热器传热性能的影响；针对未来CPU冷却的要求，确定了与最优气体流速匹配的最佳翅片间距、厚度的CPU集成热管散热器的新结构；利用试验评测了根据数值模拟提供的新结构开发出的新CPU集成热管散热器的传热性能；最后在场协同强化传热的理论的基础上，对CPU集成热管散热器的散热翅片错位排列来强化散热器的散热，满足未来大功率、多热源的电子元件的散热，为今后进一步优化散热器提供了依据。

Some parameters such as Indoor radiation heat transfer, convective heat transfer, MRT, OT, radiation heat transfer coefficient, convective heat transfer coefficient, and PMV-PPD were calculated under a steady condition. From the result, we can conclude, when operation under the combination system and worst-case test, if floor temperature is about 21℃, supply air temperature is 21℃, air velocity is 1m/s, the equlvalent coefficient of heat transfer between floor temperature and OT is 13.6w/m2k, where 5.68w/m2k is equlvalent coefficient of radiant heat transfer, 9.48w/m2k is convective heat transfer coefficient. And when air velocity is higher, supply air temperature is lower, the radiant heat transfer between floor and others is lower. In the whole experiment, the floor temperature was keeping above the indoor air dew point, and condensation was not appeared.

通过分析计算，在复合式系统运行中，最不利室外环境下，当地面温度维持在21℃左右，送风温度21℃，送风风速1m/s，此时地板对作用温度的当量综合换热系数为13.6w/m2k，其中当量辐射换热系数为5.68w/m2k，对流换热系数为9.48w/m2k，并且送风速度越高、送风温度越低，地板与其他壁面的辐射换热量有一定程度的降低，但总供冷量增加；在整个实验中地板温度始终高于地板上层空气的露点温度，并未发现有结露现象；室内空气温度梯度能满足0.1m-1.1m的温差小于3℃的要求，并且适当提高送风温度可以进一步提高人体的热舒适性。

First is enhances the boiler the heat energy transfer rate,(1) changes the vertical chimney to the horizontal-type chimney, reduces the speed of flow, Increase the time which the actuating medium and the boiler hot flame doing heat change;(2) changes the high temperature system sole medium sole heat transfer area to many kinds of medium the multi-channel heat transfer area(2-6 medium, 2-6 heat transfer area, this article takes four medium, 4 heat transfer areas confer elaboration), the increase heat transfer flow path through many times heat absorption,Lets the pot furnace coal flame heat energy as far as possible much transmit gives the actuating medium, Enables the quantity transfer rate from the present 60%--75% enhances to is bigger than 95

第一是提高锅炉的热能转移率，（1）将立式烟囱改为卧式烟囱，降低流速，增加工作介质与锅炉热焰气的热交换时间；（2）将高温系统单一介质的单一换热区改为多种介质的多道换热区（2—6种介质， 2—6道换热区，本文取四种介质，4道换热区加予论述），增加换热流程，通过多次吸热，让工作介质尽可能多地把锅炉煤焰气的热能传递给工作介质，使能量转移率从现在的60%--75%提高到大于95

与convection heat transfer相关的网络解释 [注：此内容来源于网络，仅供参考]

forced convection：强迫对流

natural convection, free convection 自由对流 | forced convection 强迫对流 | heat convection 热对流

convection heating：对劣热

对莲热系数 convection heat transfer coefficient | 对劣热 convection heating | 对疗 convection potential

heat transfer area：传热面

不透热的 heat tight | 传热面 heat transfer area | 强制对莲热 heat transfer by forced convection