相变潜热,latent heat
1)latent heat相变潜热
1.Ferroelectric-paraelectric interface dynamics related tolatent heat and its finite-size effects;与相变潜热有关的铁电-顺电相界动力学及其尺寸效应
2.After experimental verification,the model is used to study the influences of ambient temperature,latent heat,phase change temperature span and the efficiency,heat exchange between phase change material and environment on the phase change behavior(in terms of starting time and duration).利用该模型定量研究了环境温度、相变潜热、相变温度范围和换热效率等多种因素对相变行为的影响,初步得出如下结论:环境温度对相变开始时间和持续时间均有明显影响,随着环境温度的升高,该二时间呈指数形式下降;相变材料的潜热对相变开始时间没有影响,对相变持续时间有明显影响,持续时间随潜热线性增加;相变温度范围对相变开始时间也没有影响,而相变持续时间随相变温度范围的增加平缓地增加;相变材料与环境之间的换热效率显著影响相变过程开始和持续的时间,二者随换热效率的提高呈指数形式下降。
3.Differential scanning calorimetry technique is used for the temperature andlatent heat determination when some tissues in vitro such as pig muscle,fat,liver and beaf chang phase during the temperature rises.文中分别对部分离体生物组织如猪瘦肉、猪肝、猪肥肉及牛肉的相变温度、相变潜热进行了DSC测试,获得了相变潜热及相变温度区间。
英文短句/例句
1.Analysis of Phase Change for Na_2SO_4·10H_2O and Calculation on Latent HeatNa_2SO_4·10H_2O相变过程及其相变潜热的计算
2.Numerical Analysis of Heat Storge and Dischange Characteristics with PCM Capsules相变潜热储能堆积床蓄热放热性能的数值分析
3.Study on effects of hydrated salts latent heat水合无机盐相变潜热影响因素的研究
4.Effects of Latent Heat of Phase Change on Dynamic Behavior of Fluid Flow and Heat Transfer in Laser Weld Pool of Beryllium相变潜热对铍材激光钎焊熔池内流场和温度场动态行为的影响
5.Transformation Heat Study of TiNi and TiNiCu SMA Wire/Nickel Smart CompositesTiNi和TiNiCu记忆合金丝/镍基机敏复合材料相变潜热研究(英文)
6.Progress in phase change fluid in field of high-density latent heat transportation相变流体在高密度潜热输送中的研究进展
7.In this case latent heating and radiation cooling are comparable.在这种场合，潜热加热和辐射冷却数值相当。
8.Simulation of undercurrents in Western Tropical Pacific: (Ⅱ) Velocity structure, transport and the seasonal variations热带西太平洋潜流模拟:(Ⅱ)潜流结构与输运及其季节变化
9.Seasonal-to-Interannual Variability of Latent and Sensible Heat Fluxes in the Tropical Atlantic Ocean热带大西洋海表潜热和感热通量的季节和年际变化研究
10.Heat Transfer Enhancement of Phase Change Thermal Storage and Experimental Research on Characteristics of Phase Change Heat Exchanger相变蓄热换热强化及蓄热器性能实验
11.Tahiti is also much less crowded compared to other popular dive sites.相较于其他热闹的潜水地，大溪地也较不拥挤。
12.The Variation of the Latent Heat Flux and Its Relationship with the Winter Air Temperature in China;太平洋潜热变化及其与中国冬季气温的关系
13.Pyrolysis experiment and reservoir-forming potential of epimetamorphic rock浅变质岩热模拟实验及天然气成藏潜力
14.Study on Phase Change Property of Heat Storage Material-CH_3COONa·3H_2OCH_3COONa·3H_2O相变蓄热性能研究
15.ENERGY CONSERVATION CHARACTERISTIC OF PCM HEAT-PUMP WATER HEATER相变储热预热式热泵热水器节能特性分析
16.The skipper put us about to avoid submarines that had been reported in that area.据报道，该区常有潜艇出没，为避免与潜艇相遇，船长让我们改变航向。
17.The test results indicate that the heat transfer rates of the test coils increase with air inlet velocity and fin numbers.由实验数据得知湿盘管总热传量中，潜热量的变化占了大部分。
18.Boiling point elevations are negligible as well as the variation of the heat capacities and latent heats with temperature.沸点升高以及热容和潜热随温度的变化忽略不计。
相关短句/例句
latent heat of phase change相变潜热
1.Solutions forlatent heat of phase change in numerical analysis of arc welding;焊接热过程数值分析中相变潜热的三种解决方案
2.In order to reflect the effect of latent heat on the dynamic behavior of weld pool in process of the change of solid-liquid phase,a hybrid heat source model that based on rotary-Gauss body heat source model and Gauss area heat source was established,and the effects oflatent heat of phase change on dynamic behavior of fluid flow and heat transfer in laser brazing weld pool were investigated.为了能够反映固液相变过程中潜热等对熔池动态行为的影响,基于旋转高斯体热源与高斯面热源相结合的混合热源模型,分析了相变潜热对焊接熔池温度场和熔池形状的影响。
3)phase change latent heat相变潜热
1.Thephase change latent heat of compound phase change .结果表明:相变材料直接掺入砂浆中掺量达1%~3%(占砂浆胶凝材料质量分数),具有明显的蓄热降温效应,但在50℃环境下耐久性明显下降;复合相变材料较纯相变材料相变潜热提高1。
2.The phase change temperatures and thephase change latent heats of several kinds of paraffin mixtures were studied experimentally by differential scanning calorimeter.以石蜡混合物的配制和储热性能为研究对象,利用差示扫描量热仪实验研究了所配制的石蜡混合物的相变温度和相变潜热,旨在寻找适合墙体中使用的相变材料。
4)Transformation Latent Heat相变潜热
1.Ti 50 Ni 40 Cu 10 alloy is prepared and its transformation latent heats and hysteresis under conditions of various heat treatment processes and thermal cycling times are systematically investigated by differential scanning calorimeter (DSC).结果表明 ,马氏体相变潜热ΔHB2→B1 9和逆马氏体相变潜热ΔHB1 9→B2 随固溶温度的升高而明显降低 ,随退火温度的升高略微降低。
5)Equivalent non-latent heat baseline零相变潜热等价基线
6)Phase change accumulator相变蓄热
1.Phase change accumulator equipment was tapped.根据太阳能的特点和原油加热输送过程的工艺条件,设计了一套太阳能相变蓄热加热原油系统,研制开发了一种适用于太阳能加热的相变蓄热装置,对蓄热装置放热过程中的部分热工参数进行了测量。
延伸阅读
相变潜热相变潜热latent heat of Phase transition相变潜热latent heat of phase transition按照热力学第一定律，在定温定压条件下母相与相变产物间烩的差值将导致系统向外界放出或吸收热量。在系统发生一级相变时其热力学势的一阶导数在相变点上有不连续的变化，因而系统嫡和体积的变化是不连续的。随相变类型的不同，相变潜热可以表现为多种形式，如升华热、汽化热、熔化热、溶解热、固态相变的潜热等。相变潜热产生的机制是:母相与相变产物内部原子或分子间具有不同的结合方式，因而母相和相变产物的内能及比容不同。相变过程中，母相原子或分子间的结合被完全破坏或部分改变，而相变产物中原子或分子间的结合方式被建立起来。这一转变伴随着放出或吸收一定的热量。相变潜热的正负和大小提供了有关相变过程的重要信息，因而是反映相变特征的重要参量。转变热的数值可利用多种实验方法进行测量，如量热法、热分析、差热分析等。由热力学理论也可以计算相变潜热的数值。(刘俊明)
