The variations of the exhaust steam pressure with saturated exhaust steam flow rate and the inlet air temperature of the condenser were presented at100% speed and half speed of axial fans. 针对轴流风机全速和半速运行工况,计算得到了汽轮机背压随凝汽器凝结蒸汽量和进口空气温度的变化规律。
Applying the conversion coefficients of heat and steam rate to analyse economy of thermal system 热(汽)耗变换系数在热力系统经济分析中的应用
Directing against the actual situation of steam flow rate measurement, methods and measures for enhancing the accuracy in steam flow rate measurement have been put forward. 简要介绍了蒸汽流量测量的方法,分析了引起测量误差较大的原因。
As the volume ratio reached 0.67, steam flow rate almost did not affect yield of syngas and volume fraction of CH_4 at exit of gasifier. 当氧气与天然气体积比达到0.67之后,蒸汽的加入对合成气产量和气化炉出口气体中CH4的含量几乎无影响。
The energy-saving analysis was made on ammonia stripping with water steam method, by means of recovery and utilization of secondary steam and heat recovery of stripped water, the steam consumption rate is reduced. 对水蒸汽法蒸氨系统进行节能分析,通过对二次蒸汽的回收利用和蒸氨废水的热量回收,降低了蒸汽单耗。
The results show that the simulation model accurately describes the effect of feedwater flow rate disturbing, steam flow rate disturbing and nuclear reactor operation power changing on the dynamics characteristic of nuclear steam generator water level process, and represents the reverse thermal-dynamic effects correctly. 结果表明,仿真模型准确描述了给水流量扰动、蒸汽流量扰动以及反应堆功率变化对SG水位动力学特性的影响,并正确描述了SG运行中的逆动力学效应。
The simulation and analysis of dynamic characteristic for the SG water level process includes three aspects, which are the effects on the feed water flow rate disturbing, steam flow rate disturbing and nuclear reactor operation power changing to SG water level process dynamic characteristic. SG水位动力学特性的仿真分析包括不同反应堆运行功率时给水流量扰动作用下的水位动力学特性仿真分析和蒸汽流量扰动作用下的水位动力学特性仿真分析。
The increasing steam rate can result in the increase in humidity of outlet air. 随着加热管束通入蒸汽流量的增加,出口空气的湿含量进一步提高。
There is a relation between steam distillation rate and viscosity of crude oil. The lower the viscosity is, the higher is the rate of steam distillation. 原油的蒸汽蒸馏率与原油粘度有一定的关系,原油粘度越小,其蒸汽蒸馏率越大;
Combined with "freely route law", some typical auxiliary systems are analyzed and calculated with method of conversion coefficient of heat/ steam rate, which made the theories systematized. 结合自由路径法则,应用热(汽)耗变换系数法对一些典型的辅助系统进行了分析计算,使人们能够更确切地掌握其在热力系统分析中的应用,使原有理论更系统化。
Steam rate transformation coefficient, extraction equivalent enthalpy drop and steam rate of main cycle 汽耗变换系数及抽汽等效焓降与主循环的汽耗率
The solution temperature and concentration distribution and steam absorption rate along the pipes and between the tube bundle were analyzed. The effects of solution spray density and inlet concentration on the coupled heat and mass transfer characteristics were analyzed. 根据数值计算结果,分析了溶液温度、浓度和吸收速率沿管排不同位置和水平管管间的变化,以及溶液喷淋密度和进口浓度对吸收器整体传热传质性能的影响。
Research on mathematical model of temperature and pressure compensation in steam flow rate measurement 蒸汽流量计量温度、压力补偿的数学模型研究
To guarantee the project of steam drive works properly, it must be made sure that steam injection rate, production injection ratio and steam quality are above their critical value, otherwise the development result will drop rapidly. 要确保项目在真正的蒸汽驱条件下运作,就必须使注汽速度、采注比和蒸汽干度在其临界值以上,否则开发效果急剧下降。
Through numerical modelling, this paper studies the process parameters of steam drive such as steam injection rate, production injection ratio, and steam quality. 利用数值模拟方法对蒸汽驱中注汽速度、采注比和蒸汽干度等工艺参数进行了研究。
The result shows that the optimal steam injection rate is 2.0ml/ min, gas steam ratio is 1 ∶ 1 in this model. Co injection of gas and steam increases oil displacement efficiency by 10.33%. 研究结果,在本物理模型中最佳注蒸汽速度为20mL/min,最佳气汽比为1∶1,气汽同注方式可提高驱油效率1033%,明显提高了蒸汽驱驱油效率。
Variations of the gasification temperature and gas components on coal feed rate, fluidization airflow rate, central spouting airflow rate, and water steam feed rate are investigated. 研究了气化温度和煤气组分随给煤量、流化风量、中心喷动风量和水蒸气喷入量的变化规律。
A discussion of the determination method of optimal injection-production ratio and steam injection rate at steam drive stage 稠油蒸汽驱阶段最佳采注比和最佳注汽速度确定方法的探讨
The effects of some main parameters are analyzed. This method can also be used to determine the steam flow rate and steam quality in multi pipes. 同时分析了影响蒸汽干度的主要参数,提出使用该方法时注蒸汽锅炉蒸汽干度一般应大于0.4.该方法也可用于测定多歧管的蒸汽流量和干度。
The statistics of 36 oilfield steam drive pilot test results show that the oil-steam ratio depends on not only the reservoir parameters, but also the steam injection rate. 国外36个蒸汽驱现场试验结果统计规律表明,蒸汽驱油汽比不仅与地质参数有关,而且与注汽速度密切相关。
By physical modeling and numerical simulation, the characters of horizontal fracturing-assisted steam flooding technology and oil incremental mechanism is summarized, that is, using horizontal fracture to control the steam overlaying rate and delay the steam breakthrough time can be effectively enhance the vertical sweep efficiency. 通过物理模拟和数值模拟,总结出水平压裂辅助蒸汽驱技术特点和增油机理,即利用水平裂缝控制蒸汽超覆速度、推迟蒸汽突破时间,有效提高了纵向波及系数。
H_2 content in the gas will decrease with an increase in coal feed rate and gasification degree and also with a reduction in fluidized air flow rate and steam flow rate. 煤气中H2含量随给煤量和煤化程度的升高以及流化风量和蒸汽量的减小而降低;
In accordance with the real situation of Du-84 Block, carbon dioxide huff and puff parameters were analyzed, and the proper steam injection pressure, steam injection rate and operation processes were determined. 结合杜84块油藏的实际情况,对二氧化碳吞吐参数进行了研究,确定了适宜的注汽压力、注汽量和施工工艺。
The co-pyrolysis experiments at the steam rate of 3mL/ h were carried out under different char bed temperature with and without char bed. 本文在水蒸气流量为3mL/h时,研究了有、无半焦床层及不同半焦床层温度时白松和次烟煤加水共热解过程。
The results suggested higher gasification temperature, proper steam flow rate and particle size, longer solid residence time were favored in gasification process. 实验结果发现,较高的气化温度、适宜的水蒸气流量和粒径、较长的固相停留时间有利于水华蓝藻半焦水蒸气气化反应的进行。
Porous structure of activated carbon and hydrogen yield could be controlled according to change impregnation ratio of KOH and coal, or activation temperature or activation time or steam flow rate. 通过控制化学活化剂与煤的浸渍比、水蒸汽流量、活化温度以及活化时间的长短,来控制活性炭的孔结构和活化阶段氢气的产量。
The experimental results show that the productivity of the unit first increases and then decreases with the increase of the humidifying water flow rate and carrier gas flow rate, while continuously increases with the elevation of humidifying water inlet temperature and external steam flow rate. 研究表明,设备的淡水产率随增湿盐水流量和载气流量的增加而先增加后减小,随增湿盐水进口温度的升高和外加蒸汽流量的增加而增加。