adiabatic change

Equipment for adiabatic thermal change of concrete and its application

混凝土绝热温升测试仪的研制及其应用

Calculation of Adiabatic Temperature Change of Mass Concrete of Foundation in High-rise Building

高层建筑基础大体积砼绝热温升计算

The Curie temperature is 323 K and the maximum adiabatic temperature change is 0.29 K.

此材料的居里温度为323K，最大绝热磁温变为0.29K。

Simultaneity , the magnetic entropy change and adiabatic temperature change which measured directly also increase as increasing B content , and show large magnetocaloric effect at lower magnetic field .

同时，磁熵变和直接测量的绝热温变也随着B含量的增加而增大了，在低磁场具有较大的磁热效应。

The results of its application to actural project showed adiabatic temperature change of mass concrete could be efficiently controlled , excellent workability and compressive strength satisfied with design could be ensured .

实际工程应用结果表明：用该准则得到的最佳配合比，能有效地控制大体积混凝土的绝热温升，保证其高耐久性、优良的工作性与满足设计要求的强度。

Calculated results showed that both the entropy change and the adiabatic temperature change show the maximum near the magnetic phase transition temperature , which is in good agreement with the experimental results . 2 .

研究表明磁熵变化及绝热温度差都在磁相变温度附近具有最大值，我们的理论研究结果很好地解释了实验现象。

The results show that this equipment has the merits of simpleness & economy and the adiabatic temperature change of magnetic refrigerants is conveniently and truly measured by using this equipment .

实验表明：该装置结构简单、经济实用，能较方便、准确地测量磁工质的绝热温度变化。

The correct way is to take metal Gd as the benchmark magnetic refrigerant , and to estimate the variables such as adiabatic temperatures change , working region of temperatures and volumetric magnetic entropy change of the material completely by comparing the new developed magnetic refrigerants with Gd .

应该以金属钆作为室温磁制冷材料的基准材料，全面评定各个新开发的磁制冷材料的绝热温变、使用温度区间、单位体积磁熵变等参数。