The numerical optimization and the detailed exergy analysis of the cycles approved the conclusions rendered in the analysis of the cycle ' s features . we also obtained the optimum compositions of the mixture refrigerant for the rectification cycle under the pressure ratio of 8 , at the temperature levels of - 60 ? , - 80 ? , - 100 * c , and - 120 ? respectively . the method of equivalent entropy generation is initially used in this study 通过对混合工质节流制冷机诸循环进行的数值优化和较为详尽的循环粗(火用)分析,验证了循环的特性分析中所得到的主要结论,同时得到了压比为8 ,温度为- 60 、 - 80 、 - 100和- 120等四个温度位的混合工质精馏循环最优混合工质成浙江人学博十学位论文摘要分。
With the pressure measurement system for the swirl chamber diesel engine , by using the methods of equivalent power and the seven point three degree average for the indicator diagram , we can correct the tdc , smooth the pressure curve and make more accurate pressure data that is a well basis for the calculation of combustion heat release rate 摘要本文在自行开发的涡流室柴油机压力数据测录系统的基础上,利用等效功法和七点三次加权移动平均法,分别对示功图进行了上止点校正和压力曲线光顺,使压力数据更精确,为燃烧放热率的计算打下了良好的基础。
In this paper , on the basis of analyzing methods to calculate equivalent loads in the world , a computing method of equivalent loads is presented , and prestressed concrete property and generalization prestressing force are deducted . this paper studies internal prestressed concrete deflection and analyze the effect of geometrical nolinearity on external prestressed concrete deflection 本文在分析国内外有关预应力混凝土结构等效荷载计算方法的基础上,建立了新的计算等效荷载方法,并得出了预应力混凝土结构的性质,提出了“广义预应力”的思想,研究了体内预应力混凝土结构的变形,分析了体外预应力混凝土结构变形中几何非线性问题的影响。
Many problems commomly meeted in microwave are solved by the method of equivalent network , and the parameters of a equivalent network are always obtained by microwave measurement , so microwave measurement plays an imporant role in microwave field and becomes the forerunner of microwave technology 工程中遇到的大量问题一般都是用等效网络的方法来处理,而等效网络的参数则往往需要通过测量来确定,所以微波测量在微波研究中占有重要的地位,已经成为微波技术迅速发展的先导。
The means of battery modelling is discussed and the method of equivalent circuit is applicable , and the reference model is adopted because of its higher precision and more reasonable after comparing the several kinds of commonly used equivalent circuits , moreover the bond graph model of the equivalent circuit of reference model is established 对蓄电池建模方式进行探讨并采用等效电路法建模,在分析比较几种常用等效电路的基础上,采用精度高、更加合理的参考模型( referencemodel ) ,并建立了参考模型等效电路的键合图模型。