众文网1.求一片关于换热器的英语论文
1、FLOW RESISTANCE AND HEAT TRANSFER CHARACTERISTICS OF A NEW-TYPE PLATE HEAT EXCHANGER 2、ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF FLOW DISTRIBUTION IN MANIFOLDS FOR HEAT EXCHANGERS 3、Simulated Annealing Approach to the Optimal Synthesis of Distillation Column with Intermediate Heat Exchangers 4、CONDENSATION HEAT TRANSFER OF R-134A IN HORIZONTAL STRAIGHT AND HELICALLY COILED TUBE-IN-TUBE HEAT EXCHANGERS 5、Magnetic Heat Transfer Enhancements on Fin-Tube Heat Exchangers 6、Influence of Thermal Conductivity on Interface Shape during Growth of Sapphire Crystal Using a Heat-Exchanger-Method 7、Numerical Simulation of Heat Transfer Characteristics of Horizontal Ground Heat Exchanger in Frozen Soil Layer 8、An Explicit Solution for Thermal Calculation and Synthesis of Superstructure Heat Exchanger Networks 9、EBSD analysis on aluminum brazing sheet for automotive heat exchangers 10、SIMULATION AND ANALYSIS OF FLOW PATTERN IN CROSS-CORRUGATED PLATE HEAT EXCHANGERS。
2.求一片关于换热器的英语论文
1、FLOW RESISTANCE AND HEAT TRANSFER CHARACTERISTICS OF A NEW-TYPE PLATE HEAT EXCHANGER
2、ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF FLOW DISTRIBUTION IN MANIFOLDS FOR HEAT EXCHANGERS
3、Simulated Annealing Approach to the Optimal Synthesis of Distillation Column with Intermediate Heat Exchangers
4、CONDENSATION HEAT TRANSFER OF R-134A IN HORIZONTAL STRAIGHT AND HELICALLY COILED TUBE-IN-TUBE HEAT EXCHANGERS
5、Magnetic Heat Transfer Enhancements on Fin-Tube Heat Exchangers
6、Influence of Thermal Conductivity on Interface Shape during Growth of Sapphire Crystal Using a Heat-Exchanger-Method
7、Numerical Simulation of Heat Transfer Characteristics of Horizontal Ground Heat Exchanger in Frozen Soil Layer
8、An Explicit Solution for Thermal Calculation and Synthesis of Superstructure Heat Exchanger Networks
9、EBSD analysis on aluminum brazing sheet for automotive heat exchangers
10、SIMULATION AND ANALYSIS OF FLOW PATTERN IN CROSS-CORRUGATED PLATE HEAT EXCHANGERS
3.100分求论文摘要英文翻译
火电厂循环冷却水系统是以水作为冷却介质，并循环使用的一种冷却水系统。
在凝汽器中，循环水将汽轮机排汽冷凝下来，带走蒸汽放出的汽化潜热，并因此在凝汽器中形成高度真空，从而降低了汽轮机的排汽压力，使汽轮机的理想焓降增大，功率增加。The recycled cooling water system is a system applying recycled water as a cooling medium. The recycled water in the condenser condenses the exhaust gas from the steam turbine, carries off the steam evaporated latent heat, and creates a high vacuum in the condenser, thus, reduces the exhaust pressure of the steam turbine, and increases its ideal enthalpy and capacity. 而在电力生产的过程当中需要消耗大量的水资源，我国是一个水资源严重缺乏的国家，因此因地制宜的选用循环水冷却系统是十分必要的，在这样的前提下本文进行了火电厂600MW机组循环水冷却系统管路设计，本系统为双泵双流程闭式循环水冷却系统，本设计所涉及的问题主要有三个：主干线管道直径的设计；凝汽器冷却管直径的设计以及循环水泵功率的选择。
Large consumption of water resources is required during the electric power generating process; considering China is a country gravely short of water resources, it is necessary to suit the local condition by using recycled cooling water system. As such, this paper conducts a pipeline design of a recycled cooling water system for a 600MW power plant unit. This design is a double-pump dual-process closed cycle water cooling system which involves three major issues: trunk pipeline diameter design, condenser cooling pipe diameter design and the selection of the recycled water pump power capacity. 首先是对系统主管路管径的设计，先假设一个管径，通过计算主干线管路内的流动损失，找到一个可以把流动损失控制在设计范围内的相对应的管径。其次是对凝汽器内散热管直径的设计计算，根据《火力发电厂凝汽器管选材导则》选择合理的冷却水流速以及冷却管材料，假设管径及壁厚，计算凝汽器冷却管尺寸，并用凝汽器水阻HEI计算方法计算水侧损失，找出损失在设计范围内的对应的管径。
最后选择循环水泵功率。Firstly, it is to assume a pipe diameter for the trunk pipeline diameter design, and by calculating the internal flow loss of the trunk pipeline, a corresponding pipe diameter which can control the flow loss within the design range is determined. Secondly, the design of the radiator pipe diameter in the condenser is calculated; the flow rate of the cooling water and the cooling pipe material are selected in accordance with “The Guidelines for the Selection of Condenser Tubes in Thermal Power Plant”. The size of the condenser cooling pipe is calculated by hypothesizing the pipe diameter and thickness, and the water side loss is calculated by applying the HEI condenser water resistance calculation method, so that a pipe diameter corresponding to the loss within the design range is determined. Finally, the power capacity of the recycled water pump is selected. 【英语牛人团】。
4.题目：300mw机组蒸汽冷却器和疏水方式对热经济性影响论文
1.蒸汽冷却器就是说加热器，加热器的作用是加热凝结水和给水.加热器的数量选择得看抽汽有多少段.抽 汽段数的选择得经过计算.并不是多了就经济.
2.加热器本身的经济运行也对整个机组的经济运行有一定影响.抽汽压力的能否达到加热器的设计要求？加热器管材特性\水位\结垢等情况都会影响加热器运行的经济性.
3.加热器疏水方式的选择也很重要.比如采用疏水泵可以提高一定的经济性，但设备维护量大了，设备投资也要花钱.比如采用逐级自流方式如果是自动调整还好一点，也有一定维护量，如果是手动调整会经常出现排挤现象，也不经济.但系统是简单了.如果采用多级水封的方言式，维护量小，运行稳定.但占地面积会较大，也不利于现场系统的布置.多数情况要布置在负米.那不是还得挖坑么.哈哈.
4该题目要从朗肯循环的理论谈起.得用数据算出然后再对比才能说明问题.哈哈.
5.说的不全面的地请高手补充.
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