查询词典 aspen

The following points are emphasized:The operation models of adiabatic and diabatic distillation have been set up and the operation block, thermodynamics model and mathematical model in the simulation have been determined as well;(2)Based on the simulation and exergy analysis with Aspen Plus program, shortcut distillation design—DSTWU model and rigorous distillation design—RADFRAC model, the author has determined the heat duty, exergy losses and the distribution of exergy losses along the adiabatic column, which will help the simulation and optimization of the diabatic distillation;(3)Diabatic distillation under various operation conditions has been simulated by using energy balance method and exergy analysis;(4)How the different mixture and the various degree of separation, number of trays and feed location influence exergy saving in diabatic distillation have also been discussed;(5)On the basis of the total exergy losses along the column, different schema of the heat transfer distribution along the column have been compared and analyzed;they can be classified in three categories: heat duty equipartition approach, empirical approach, separation degree matching approach. In conclusion, different heat transfer distribution along the column will have effect on total exergy losses. In particular, most satisfactory results have been obtained by using separation degree matching approach. In order to diminish the exergy losses, heat transfer distribution should meet the needs of the request of separation degree.And on this premise, the author makes his suggestion in increasing the proportion of heat supplied to the tray with minimum exergy losses and decreasing the proportion of heat supplied to the tray with the maximum exergy losses.

本文对透热精馏过程进行了模拟并对其节能效果的影响因素做了较为全面的分析和深入的研究，主要研究内容如下：(1)建立了常规精馏和透热精馏过程的模拟操作模块、热力学模型以及数学模型；(2)利用化工模拟软件Aspen Plus并分别采用DSTWU简捷模型和RADFRAC严格计算模型对常规精馏进行模拟计算和有效能分析，确定常规精馏塔的公用工程热负荷、有效能损失及有效能损失在塔内的分布，为透热精馏的模拟和优化提供数据参考；(3)对不同物系在不同分离度条件下进行透热精馏的模拟，分别采用能量衡算法和有效能分析法进行计算和分析；(4)探讨了各种因素如物系的选择、不同分离度、塔板数、进料位置对透热精馏节能效果的影响；(5)以全塔总有效能损失为比较基准，对热量在塔内的三种分布方案即热负荷平均分配法、经验法和分离度匹配法进行了对比分析并得出结论：塔内热量的不同分布方案对于全塔总有效能损失会产生影响，其中以分离度匹配法的节能效果最为理想，为减少有效能的损失，应使塔内的热量分布满足各塔板的分离度要求，并在此前提下，尽量减小有效能损失大的塔板的热负荷和增加有效能损失小的塔板的热负荷。

We designed and simulated the ethylamine separation system using Aspen Plus. The optimal parameters such as theoretical plate number and reflux ratio were obtained.

利用模拟软件Asp-en Plus对乙基胺分离系统进行了设计和模拟计算，得到了各塔理论板数和回流比等设计参数。

Katrina Peng Dai "history's most ferocious female prisoners" Sang Van Ulf 'great ships' Bacchus Short 'big barrel' A Baluo Pizarro "king of bad governance," the Greek stay long detention center Seven armed even flat sea, sun, white beard pirates Aspen Group Captain Captain Second Fan.

卡特里娜戴彭"历史最凶恶的女犯人"桑凡乌尔夫'巨大战舰'巴克斯肖特'大酒桶'阿巴罗皮萨罗"恶政王"希留看守所长甚平七武海，太阳海贼团船长艾斯白胡子二番队长。

Tucker Hibbert of Goodridge, Minnesota sails to first place and earned his fourth consecutive gold medal in Snowmobile SnoCross at Winter X Games 14 at Buttermilk Mountain on January 31, 2010 in Aspen, Colorado.

塔克希伯特的转址，明尼苏达州帆到第一名，并获得1月31日，他第四次在雪地车SnoCross连续黄金冬季极限运动会在奶油山14金牌，在科罗拉多阿斯本2010年。

This was brought home to me pretty sharply in July 2007, during an hour-long session at the Aspen Ideas Festival.

从2007年起，在阿斯潘理念交流会上的一个长会，那一个小时，我就是这样的了。

Diurnal gas exchange for aspen, jack pine and black spruce indicated afternoon depression. In hazelnut, a second peak in Pn occurred in the afternoon.

欧洲杨、短叶松和黑云杉的日气体交换率均表现午后抑制，榛子在下午出现了第二个Pn高峰。

The physical properties of aspen BCTMP treated by a high-shear fiber kneader were investigated.

摘 要：利用高剪切纤维离解机处理杨木BCTMP。

The 60-km-long Bow Valley Parkway in the Canadian Rockies meanders though a montane landscape of trembling aspen and lodgepole pine.

在60公里长的弓河谷公园大道，在加拿大落基山脉河曲虽然是山地景观颤杨和黑松。

New York City; Aspen, Colorado; and Longboat Key, Florida and on dates having nothing to do with wine production.

多数酒节是为有钱人举办的。酒节的内容包括几小时的讲座、讨论会及有组织的"品味猜酒"活动。

In 1902 he created the opera "Aspen and梅丽桑德carry out" is based on the well-known playwright Maeterlinck Belgian Symbolist drama of the same name.

他于1902年创作的歌剧《佩列阿斯与梅丽桑德》就是取材于著名的比利时象征主义剧作家梅特林克的同名戏剧。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。