查询词典 heat transfer

Design indoor temperature of residental buildingfor household heating and heat metering was studied in this article based on thermal comfort formula and PMV/PPD evaluation index. It can be determined that when indoor temperature is 20℃ and varies in the range of 16℃~24℃,it's feasible for thermal comfort,woking efficiency and health standard,thus the key problem of heat load calculation is resolved. It's significant for perfecting heat metering techniques and providing specifications of HVAC.

简介： 本文从热舒适、工作效率、健康标准等方面出发，以热舒适方程及PMV/PPD评价指标为依据，对采用分户计量供热系统的居住建筑的室内设计计算温度的确定进行了研究，确定其为20℃，室温变化范围是16℃～24℃，从而解决了热负荷计算的核心问题，对完善热计量技术及相关暖通规范的编写有一定的指导意义。

Development of speciality resin for heat shrinkable film ;2. The heat sensitivity of polyvinyl chloride heat shrinkable film was described.

阐述了聚氯乙烯热收缩膜的热敏性，并从生产实际的角度详细讨论了PVC热收缩膜热敏性的影响因素以及热敏性与成型收缩率和贮存性能之间的关系。

Toop's model and Miedema method are to be used to calculate the heat of formation of ternary compounds. A projected method is used to obtained the heat of formation of AB_(1-x)G_x. The heat of formation is negative for GaAs_(1-x)P_x and for GaAs_(1-x)N_x compounds in the all range and for GaP_(1-x)gN_x compound in the

我们分别用Pauling和Phillips经验方法及Miedema半经验方法计算[59]得到Ⅲ-Ⅴ族二元合金的生成热，比较三种方法，均只定性与实验结果吻合，但Miedema方法具有准第一原理特点，可以从组元基本特性出发来得到合金生成热的数据；我们把TOOP'S模型引入计算中，并把计算结果投影到Ⅲ族组元总浓度等于所有Ⅴ族组元总浓度的平面上，即计算AB_(1-x)C_x合金系的

Hello, hair removal is recommended that you go to a regular hospital for plastic shed, for hair removal methods currently being used for hair removal using photons, the photons unhairing this unique light and heat treatment technology, full use of the combined effect of light and heat, through the launch special spectrum of pulsed light, penetrate the skin to reach the depth of different organizations, was the corresponding depth of the hair follicle, hair dry, and melanoma cells, such as target tissue absorption of heat generated by the formation of an instant local high temperature, dry and damage hair follicles, and obstructed and the termination of hair growth, to achieve permanent hair removal results.

您好，脱毛建议您去正规的整形医院进行脱毛，对于脱毛目前采用的方法是采用光子进行脱毛的，光子脱毛这种独特的光热治疗技术，充分利用了光和热的综合效应，通过发射特殊谱段的脉冲光，穿透皮肤到达不同的组织深度，被相应深度的毛囊、毛干、黑色素细胞等靶组织吸收，产生的热量形成瞬间局部高温，破坏毛干及毛囊，阻碍和终止毛发的生长，达到永久性脱毛的效果。

Along with development of heat pump and its all kinds of driver device and heat pump system experiment study, heat pump technology will be applied more and more widespreadly in our country,and will play an important.

概述了中国目前的能耗现状和能源问题面临的形势，提出热泵技术是回收和利用低位热能的有效措施之一，研究和推广应用热泵技术对于节能有重要意义。

--- Ambient air (2) is canalized and cooled in a free space (4) delimited by a thermally insulated enclosure (1) and a radiating heat exchanger (3) of which the outer face (6) is heat-absorbing and the inner face (5) is heat-radiating.

摘要---周围空气中（ 2 ）是渠化和冷却，在一个自由的空间（ 4 ）分隔由一个热绝缘外壳（ 1 ）及辐射换热器（ 3 ），其中外面对（ 6 ）是吸热和党内面对（ 5 ）是热辐射。

3D model produce enormous degree of freedom.(3) Simulating have to employ multi-step load for moving heat source. In order to solve problems mentioned above and improve solution accuracy, this paper choused suitable material property parameter, and used transition mesh, with two point and line heat sources model. The program which applyload of moving heat sources and suitable time step was edited by means of ANSYS' APDL (ANSYS Parametric Design Language).

为了解决这一问题并提高计算精度，本文对高温时材料的物理性能参数进行了适当的选取和处理；采用过渡网格划分形式划分网格以保证焊缝处网格足够细小；点热源选取高斯函数分布和线热源进行叠加，利用ANSYS软件的APDL（ANSYS Parametric Design Language）语言编写程序实现移动热源的加载；选取适当的计算时间步长。

Increasing the temperature differential and/or pressure allows Stirling engines to produce more power, assuming the heat exchangers are designed for the increased heat load, and can deliver the convected heat flux necessary.

提高温度差和/或压力使斯特林发动机生产更多的权力，承担换热器设计用于增加热负荷，并能提供convected热流必要的。

In order to acquire the heating-cooling process of laser molten pool and the mutual effect of sintering layers in multi-layer powder sintering, factors such as heat conduction, heat radiation, heat convecting and changeable thermophysical property parameters were taken into account comprehensively, the 3D transient state FEM of the temperature field of multi-layer thin-wall metal parts formed by DMLS was established based on ANSYS. The APDL (ANSYS Parametric Design Language) was used to carry out thermal resource moving and the technique of birth/death for element was used to simulate the process of material addition.

为掌握多层粉末烧结过程中激光熔池的加热冷却规律以及各烧结层之间的相互影响，综合考虑热传导、热辐射和热对流以及材料的高度非线性，基于ANSYS平台建立了多层金属薄壁件的三维温度场有限元模型，利用APDIJ语言编程实现模拟中激光热源的移动，采用&单元生死&技术描述粉末材料动态增长过程。

Based on the Problems of heat shack rupturing and desquamating of firebricks on trolley of heat treatment furnaces,the technology measures were put forward irrigating trolley liner using castables with high resisting heat shack performance.

针对台车式热处理炉台车衬砖热震断裂脱落问题，提出了采用高抗热震性浇注料进行台车工作衬整体浇注的技术措施，根据热处理炉的实际工作条件，完成了浇注料的研制，并在实际应用中，取得了良好的应用效果。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。