纳米水平热量传输中温度定义的讨论

纳米水平热量传输明显不同于宏观和微观系统的热量传输。由于热量携带子——电子、光子、声子或分子的平均自由行程与被研究物体的特征长度之间具有可比性，经典理论已经不再适用，人们必须采用新的理论来预测纳米水平的热量传输。在许多仿真模型的研究中存在对温度定义的分歧，因此出现不同的研究结论。针对于在仿真模型研究中可能出现的有关温度的定义给出了明确阐述。     

循环流化床锅炉性能试验规程的编制及其特点

介绍了由西安热工研究院有限公司负责起草的电力行业标准《循环流化床锅炉性能试验规程》(DL/T 964 2005)的编制原则和技术特点,并对编制中有关问题的处理作了说明,可供本规程使用者参考。     

放射性核废料自埋过程中的热量阈值

针对恒释热率热源接触熔化，提出了热量阈值的概念。分析计算了典型反应堆核废料自埋接触熔化过程中的热量阈值和达到阈值的时间以及相应的熔化深度，并与相关文献结果进行比较，指出了相关文献中的一些错误，得出了一些有意义的结论。     

围护结构节能技术

围护结构节能技术指通过改善建筑物围护结构的热工性能，达到夏季隔绝室外热量进入室内，冬季防止室内热量泄出室外，使建筑物室内温度尽可能接近舒适温度，以减少通过辅助设备如采暖、制冷设备来达到合理舒适室温的负荷，最终达到节能的目的。建筑物的围护结构节能技术分为：     

Heat regulating strategy in numerical control end milling for hard metal machining

The trend in die/mold manufacturing at present is towards the hard machining at high speed to replace the electron discharge machining. Failure forms of the A1TiN-coated micro-grain carbide endmill when used for the machining of/IS SKD61 (HRC 53), a widely used material in die/mold manufacturing, are investigated. The endmill shows a characteristic that tool life decreases greatly due to the chipping when overload occurs or the rapid increase of wear when over-heat accumulation in cutting edges. As a consequence of the investigation, a strategy to regulate heat generation in the end milling process is proposed. This is accomplished by controlling the cutting arc length, i.e. the length of each flute engaging workpiece in a cutting cycle. Case studies on the slot end milling and comer rounding are conducted. The results show that the proposed strategy suggests the optimal tool path as well as the optimal pitch between successive tool paths under the cutting time criterion.     

Forming regularity and relation between composition and property of B2O3-BaO-ZnO glass

B2O3-BaO-ZnO glass was prepared by using conventional melt quenching technology. The forming regularity and the relationship between the composition and the property of B2O3-BaO-ZnO glass were investigated. The results show that the composition range for forming B2O3-BaO-ZnO glass is very wide, but the content of B2O3 has a limit within mole fraction of 25%-75%. When the content of B2O3 is over the limit, the melt will be divided into two phases with different compositions and structures, whereas too low content of B2O3 will result in the crystallization of the melt during the cooling process. The thermal expansion coefficient, the transition temperature and the resistivity of the glass at room temperature are (5-10)×10-6 ℃-1, 480-620 ℃ and (1.5-3.0)×1010 Ω·m, respectively.     

溴化锂吸收式制冷技术的应用与发展

对吸收式制冷／热泵循环型式及溴化锂／水工质对的发展现状进行了综述。吸收式制冷／热泵循环技术可以回收利用工业生产中的大量低品位废热，而且其常用工质对溴化锂／水及氨／水对环境没有破坏作用，是日益受到人们重视的环保型节能技术。     

热量表的热量计量原理及计算

较详细地介绍了热量计量原理和几种常见的热量计量方法。在分析比较后，提出了一种采用k系数补偿功能的计量方法，实现了k系数的温度和压力在线补偿，具有较高的测量精度。给出了具体的计算实例及其结果。     

链条炉炉膛加煤粉复合燃烧的辐射换热计算

在火床为漫黑体、水冷壁和炉墙为漫灰体、炉墙绝热、忽略对流换热的前提下，分别以上下水冷壁为研究对象，用直接计算辐射换热量的方法，推导得出了链条炉排上方加煤粉复合燃烧锅炉炉膛的辐射换热方程。     

高海拔低气压对冷却塔性能影响的研究

从冷却塔的基本冷却原理入手，研究分析高海拔低气压因素对冷却塔冷却效果的影响。