According to decalescence and discharge heat of phase change, single dimension passes heat theory model of phase change was created.
根据相变材料的吸热和放热特点,建立了相变材料的一维传热理论模型。
A specific enthalpy method associated with the alloy equilibrium phase diagram is employed to account for the latent heat of phase change.
对于潜热处理,采用了基于合金平衡相图的比热焓法;
The results show that the moisture transfer and the phase change have definite effects on heat transfer of the soils, which should be considered in calculation.
对计算结果分析表明,水分迁移和相变对土壤的传热有一定影响。
Container of Phase Change Material (PCM) is a key part of heat receiver in space solar dynamic power system.
相变材料(PCM)容器是空间太阳能动力装置吸热—储热器的关键部件。
Nowadays, energy crisis is a world problem which has to solve. The technology of phase change for heat storage is signality for energy source allocation.
能源危机是当今世界迫于解决的问题,相变储热技术对于能源的合理配置意义重大。
The method has the advantages of simple and easy operation as well as high accuracy by testing the phase change heat in the salt bath process of metallic material in experimental method.
优点是通过实验方法测试了金属材料盐浴过程中相变热,简单易行,准确度较高。
The first is sensible heat, which is just the energy required to change the temperature of a fluid with no change in phase.
第一类是显热,即在不发生相变的条件下改变流体温度所需要的能量。
The differences of solid liquid phase change heat transfer process between two different void positions are analyzed through numerical simulation.
通过数值模拟计算,分析了两种不同的空穴位置下固液相变换热过程的差别。
Furthermore, the value of heat inertia in the hearth of copper refining rotary anode furnace in the reduction phase is so big that smoke temperature change can not quickly respond to the disturbance.
且铜精炼氧化过程炉膛具有很大的热惯性,这直接导致炉膛烟气温度动态响应速度很慢、动态过程时间很长的现象出现。
In this model, the contribution of blood flow and metabolic heat generation has been included and it is not required that the tissue be initially at its phase change temperature.
模型中包括有血流和代谢热的影响,且允许生物组织的初始温度高于其相变温度。
Latent heat storage system based on phase change materials' (PCMs) melting and freezing is particularly suitable for solar energy heating, peak-shift of electrical demand and heat recovery.
基于相变材料熔化和凝固过程的相变潜热储能系统适用于太阳能加热、电力的‘削峰填谷’、热能回收。
A numerical model of freezing phase change heat transfer in metallic foams was established.
建立了泡沫金属内冻结相变传热过程的传热模型。
A new formula to calculate reaction heat is put forward. It is suitable not only for isothermal reaction, there is no limitation of phase change.
提出了一个新的化学反应热计算式,该计算式不仅能对非等温反应的反应热进行计算,而且还可克服应用基尔霍夫公式不能有相变化的限制;
A kind of composite phase change heat storage is introduced in this paper, including its working principles and structures.
介绍了一种复合相变蓄热器的工作原理和结构形式,提出了应用中所存在的问题。
According to the finite element analysis of heat conduction with phase-change by using the enthalpy, an effective numerical method to eliminate the solution of iteration is presented.
通过对采用热焓处理相变导热问题的有限元分析,提出了消除迭代求解的一种有效算法。
Vacuum storage of food is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
食品真空贮藏过程是复杂的传热传质过程,该过程涉及到扩散、传热、传质等机理。
In this paper, it is believed that the heat transfer mechanism of phase change in a capillary tube belongs to liquid film conduction and surface evaporation.
本文认为毛细管的相变传热机理为液膜的导热和表面蒸发;表面蒸发受蒸汽温度、汽液界面的温度以及汽液压力差的共同控制。
It shows that the new equations of vaporization heat herein are well suited to describe the property of vapor liquid phase change.
表明此新气化热方程非常适合于描述气液相变化的特性。
The results show that the phase change temperature of paraffin can vary with the constitution, and paraffin has larger phase change latent heat and no supercooling.
研究显示:石蜡的相变温度可根据组成进行调节,相变潜热大,无过冷现象,在多次吸放热后相变温度和相变潜热变化很小,稳定性好。
The thermal properties of cool storage material include freezing and melting point, freezing and melting latent heat during the phase change process were investigated.
通过实验研究了空调蓄冷材料的凝固温度、融解温度、凝固潜热和融解潜热等热学性能。
Using two methods of oxidation and graft to modification paraffin's performances, what was in order to widen paraffin's phase change temperature and improve its latent heat.
采用氧化和接枝两种方法对石蜡进行化学改性,以拓宽石蜡的相变温度范围和提高其相变潜热。
A test method of phase change heat in salt bath of a metallic material belongs to the field of material heat processing.
一种金属材料盐浴过程中相变热的测试方法,属于材料热处理领域。
High temperature phase change heat storage using molten fluoride salts is one of the key techniques for space solar thermal dynamic power system.
高温熔盐相变储热是空间太阳能热动力发电系统的关键技术之一。
Heat transfer is depend on the phase change of work fluid in the heat pipe. Since, the performance of work fluid is very important for heat transfer of heat pipe.
热管是依靠工作介质的相变来传递热量的,因此,工作介质的物理性质对于热管的工作特性也就具有重要的影响。
The second is latent heat, the energy required to effect a change in phase of a fluid, as in boiling or condensing.
第二类是潜热,即引起流体相变所需的热量,如沸腾和凝析。
In it often accompany heat transfer, mass transfer, chemical reaction and phase change. Mutual interactions of mass, momentum, energy and heat among different phases are very complicated.
气粒多相流动中往往伴随着传热传质、化学反应、相变等,相与相间的质量、动量、能量和热的相互作用十分复杂。
Heat pipe is a high efficient heat exchange component, which transfer the heat resorts to the phase change of its working substance.
热管是一种借助工质的相变进行热传递的高效换热元件。
Heat pipe is a high efficient heat exchange component, which transfer the heat resorts to the phase change of its working substance.
热管是一种借助工质的相变进行热传递的高效换热元件。
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