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     Natural circulation flow excursion has been observed on the test loop HRTL-5 under low steam quality conditions,which simulates the geometry and system design of the 5MW full power natural circulation Nuclear Heating Reactor.
     在5MW低温核供热堆全模拟试验回路(HRTL-5)上,实验观察到了低干度自然循环条件下的流量漂移现象。
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     AN EXPERIMENTAL STUDY OF SIMULATING HIGH-SPEED PRODUCTION IN TIGHT SANDSTONE GAS RESERVOIR
     致密砂岩气藏应力敏感的全模拟试验研究
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     The results show that it is an effective pretreatment process with obvious decolourising performance. Under the condition of micro-aeration, the average removal efficiencies of color> COD> PO43--P and TP are 41.3%, 54.5%, 87.5% and 79.4%, respectively. Furthermore, the process could adjust the influent quality and alleviate the shock loading.
     采用催化铁内电解法对桃浦工业区混合化工废水进行了全模拟试验,结果表明,该法对于混合化工废水的预处理具有显著的脱色效果,微曝气条件下,脱色率平均为41.3%,对COD、PO_4~(-3)-P和TP的平均去除率也分别高达54.5%,87.5%和79.4%;
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     Through an overall simulation experiment of th e overburden pressure,formation pressure,formation temperature and initial formati on water saturation as well as the pressure fall off production of elastic gas drive constant volume gas reservoir without edge water and bottom water,the gas recovery factor at abandonment pressure was studied for the Penglaizhen Formatio n gas reservoirs in West Sichuan. It is concluded that the recovery factors are 5 5% and 64% for J 3 p 1 and J 3 p 2 gas reservoirs respectively;
     文章通过模拟地层上覆压力、地层压力、地层温度和地层原始含水饱和度以及无边、底水定容气藏的弹性气驱降压开采的全模拟试验 ,对川西蓬莱镇组气藏在废弃压力时的天然气采收率进行了模拟研究 ,得出如下结论 :蓬 1和蓬 2气藏采收率分别为 5 5 %和 6 4 % ;
短句来源
     Taking HRTL-5 for the 5MW nuclear heat reactor as a physical model and based on two-phase flow mathematical model , in which the physical processes such as sub-cooled boiling in theheated section, condensation at the inlet of the riser, flashing in the riser and pressure balance have beenconsidered, a calculation program for the two-phase flow has been developed.
     以5MW核供热低温堆全模拟试验回路(HRTL-5)为物理原型,在一个考虑了加热段欠热沸腾、上升段入口冷凝、上升段闪蒸以及气空间压力平衡等物理过程的两相流动数学模型基础上,编制了两相流计算程序。
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     The Multiple Simulating Test Installation of the Full-Scale Well Drilling of PC Controlled
     PC 控制的尺寸钻井综合模拟试验装置
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     Simulation Test of Bolting Mesh Support Used in Coal Roadways
     综放煤平巷锚杆支护模拟试验研究
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     运输模拟试验
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     Total Gastrectomy
     胃切除术
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Thr strength of high pressure sealing gland is of practical significance in engineering, The stress analysis of gland can be made by applying three-dimentional photoelastieity in which a full-simulated test on local construction by applying static pressure was carried owt. The strtss distribution and the maximum stress were determined. Then the strengfh of glands were examined. The method applied is also suitable for model test of other types of assembly especially for the freezing test in photoelasticity.

高压密封堵头的强度在工程实际中具有重要性。应用三向光弹性方法,研究了堵头的应力分析。采用了施加静力气压载荷的局部结构的全模拟试验,确定了应力分布及最大应力,探究了堵头的强度。所应用的方法对于其他组合件型式的模型试验特别是光弹性冻结试验同样是适用的。

Through an overall simulation experiment of th e overburden pressure,formation pressure,formation temperature and initial formati on water saturation as well as the pressure fall off production of elastic gas drive constant volume gas reservoir without edge water and bottom water,the gas recovery factor at abandonment pressure was studied for the Penglaizhen Formatio n gas reservoirs in West Sichuan.It is concluded that the recovery factors are 5 5% and 64% for J 3 p 1 and J 3 p 2 gas reservoirs...

Through an overall simulation experiment of th e overburden pressure,formation pressure,formation temperature and initial formati on water saturation as well as the pressure fall off production of elastic gas drive constant volume gas reservoir without edge water and bottom water,the gas recovery factor at abandonment pressure was studied for the Penglaizhen Formatio n gas reservoirs in West Sichuan.It is concluded that the recovery factors are 5 5% and 64% for J 3 p 1 and J 3 p 2 gas reservoirs respectively;res ervoir recovery efficiency is positively correlated with permeability and water saturation is negatively correlated with porosity;and the key to enhance reservo ir recovery factor at the abandonment pressure is to control producing pressure drop,so as to avoid a lot of gas' being produced in end gas production stage.

文章通过模拟地层上覆压力、地层压力、地层温度和地层原始含水饱和度以及无边、底水定容气藏的弹性气驱降压开采的全模拟试验 ,对川西蓬莱镇组气藏在废弃压力时的天然气采收率进行了模拟研究 ,得出如下结论 :蓬 1和蓬 2气藏采收率分别为 5 5 %和 6 4 % ;气藏采收率与渗透率呈正相关关系 ,水饱和度与孔隙度呈负相关关系 ;提高气藏在废弃压力时采收率的关键是控制生产压差 ,避免大量天然气进入尾气生产阶段产出

Taking HRTL-5 for the 5MW nuclear heat reactor as a physical model and based on two-phase flow mathematical model , in which the physical processes such as sub-cooled boiling in theheated section, condensation at the inlet of the riser, flashing in the riser and pressure balance have beenconsidered, a calculation program for the two-phase flow has been developed. In this paper, calculated and experimental results have been compared and parameters for the two-phase drift-flow model have beendetermined, which...

Taking HRTL-5 for the 5MW nuclear heat reactor as a physical model and based on two-phase flow mathematical model , in which the physical processes such as sub-cooled boiling in theheated section, condensation at the inlet of the riser, flashing in the riser and pressure balance have beenconsidered, a calculation program for the two-phase flow has been developed. In this paper, calculated and experimental results have been compared and parameters for the two-phase drift-flow model have beendetermined, which can be used in the simulation of the flow characteristics in the natural circulation system at low pressure and low dryness fraction. Calculated result shows that: ①for a nuclear heat reactor, if thevoid distribution parameter C0 equals 1.1 and uvj equals 0.48, calculated results are very closed to theexperimental results; ②C0 and uvj have rather complicated effects on the calculated results, which is not the simple accumulation as a parameter varies, but there is the effect of coupling or enhancement in the model; ③as for the calculation of natural circulation flow characteristics for HRTL-5, there are great differencebetween the uniform flow model and drift-flow model.

以5MW核供热低温堆全模拟试验回路(HRTL-5)为物理原型,在一个考虑了加热段欠热沸腾、上升段入口冷凝、上升段闪蒸以及气空间压力平衡等物理过程的两相流动数学模型基础上,编制了两相流计算程序。通过计算,与已有实验结果比较后,确定了两相漂移流模型中参数的取值;这些参数可用于计算低压低干度自然循环系统的流动问题。计算结果表明:①在核供热堆条件下,漂移流模型在C0取1.1、uvj取0.48时,计算结果与实验数据符合较好;②模型参数C0、uvj的取值对计算结果的影响比较复杂,不是单独改变一个参数时的简单叠加,在模型内部存在耦合或增强的效应;③均匀流模型和漂移流模型在计算HRTL-5自然循环流动问题时结果相差较大。

 
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