热力参数 meaning in English
thermal parameter
Examples
- Abstract : in the paper , we set up new mathematical models of heating power paramenters , discussed the measuring techniques and introduced intelligent instrument with 8031 scp
文摘:本文建立了高精度、宽范围的水蒸汽热力参数数学模型，分析了相应的测量技术问题，介绍了以8031单片机为主要部件的智能化热力参数测量仪的构成。 - The use of traditional ways such as the trial - and - error and empirical method to define the process windows of the difficult - to - deforming materials can not keep pace with the rapid development of modern industry
本构关系是制定其塑性加工工艺的主要依据之一，也是利用动态材料模拟方法和刚塑性有限元法合理确定这类难变形材料的热力参数范围的前提条件。 - As a result , the metal flow pattern during forging process is analyzed and distributions of some thermomechanical field variables such as temperature 、 stress and strain are obtained , through which the forming laws during forging process of a gas turbine compressor blade are revealed
通过有限元数值模拟，分析了锻造过程中的金属流线分布，得到了温度场、应力应变场等热力参数的场量分布，从而揭示了叶片锻造的变形机理。 - According to the theory of engineering thermodynamics and phase change , heat - transfer process of the special working fluid heat - pipe stove is analyzed . some hypotheses are postulated and with the help of equation of mass - conservation , energy - conservation , the dynamic concentrative parameter model is built , the change of each parameter is prescribed at any stage from starting to stopping . with the thermodynamic calculation of burnable process , the parameter of device , such as heat - transfer coefficient / thermal efficiency etc , are achieved under steady state ; based on theoretic calculation , observing the actual running circumstance of the heating stove in person , with some performance comparison between the new and the old , the high efficiency and reliability of heat - pipe stove is proved , the project which expend it in the oil - filed is feasible
对充入该工质的热管加热炉，本文根据工程热力学和相变传热学及相关知识，对其进行了传热分析，经过适当假设，运用质量守恒和能量守恒定律，建立了装置动态集中参数模型，描述了加热炉从开机到稳定运行这一动态过程各参数的变化情况，同时对燃烧过程也进行了热力计算，最终得到了稳态工况下装置的换热系数、热效率等热力参数；在理论计算的基础上，亲赴现场观察该炉的实际运行情况，通过与原有的加热炉的各项性能进行对比，最终证明新炉的高效性和可靠性，为其在油田中推广的可行性提供了依据。 - Second , the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model , which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system . third , the normal running process is analyzed and calculated by means of rational matching theory , which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator . fourth , the simulation software with dynamic characteristic is designed , which can be applied to calculate thernio - parameter of cryogen , air humidity and frost thickness under different initial and boundary conditions , and to carry out dynamic simulation under conditions of dryness , wetness and frostiness , at the same time , to achieve detection and simulation at any stage from starting to stopping
本文的主要内容如下： 1 )对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2 )对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3 )对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4 )编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。