A new method for analyzing heat exchangers-matching of temperature field

2012 ◽  
Vol 21 (5) ◽  
pp. 452-458 ◽  
Author(s):  
HuanGuang Wang ◽  
XiuLan Huai
Keyword(s):  
Temperature Field ◽  
Heat Exchangers ◽  
New Method

Prevention and Cure of Flow-Induced Vibration Problems in Tubular Heat Exchangers

1980 ◽  
Vol 102 (2) ◽  
pp. 138-145 ◽  
Author(s):  
F. L. Eisinger
Keyword(s):  
Heat Exchangers ◽  
Cross Flow ◽  
Acoustic Vibration ◽  
New Method ◽  
Flow Induced Vibration ◽  
Tube Bank ◽  
Vibration Resistance ◽  
Stability Diagrams ◽  
Vibration Problems ◽  
Prevention And Cure

Various methods for predicting and solving tube and acoustic vibration problems in heat exchangers in cross flow are presented: the use of stability diagrams comprising in-service experience of heat exchangers, for a general multispan tube model; a method of selecting efficient baffle configurations for prevention of acoustic vibration, a new method of fin barriers, an alternative to conventional baffling; a new method of enhancing the vibration resistance of a tube bank based on the use of a helical spacer; these methods, singly or in combination, can be used to design against flow-induced vibration.

A new method solving the temperature field of concrete around cooling pipes

2013 ◽  
Vol 11 (5) ◽  
pp. 441-462 ◽  
Author(s):  
Zhenyang Zhu ◽  
Sheng Qiang ◽  
Weimin Chen
Keyword(s):  
Temperature Field ◽  
New Method ◽  
Cooling Pipes

Comparison of the Frequency Responses and Time Constants of Mineral Insulated Thermocouples in Sodium and Water

1968 ◽  
Vol 1 (5) ◽  
pp. T100-T104 ◽  
Author(s):  
P. G. Bentley ◽  
R. Rowley
Keyword(s):  
Temperature Field ◽  
Frequency Response ◽  
Room Temperature ◽  
New Method ◽  
Time Constants ◽  
Frequency Responses ◽  
Temperature Water ◽  
Random Temperature Field

Frequency responses of mineral insulated thermocouples are investigated in sodium by a new method which uses a random temperature field generated by the action of turbulence. This forms the basis for a comparison with the frequency response measured in room temperature, water, and the deduction of time constants for the thermocouples in sodium.

Study on Setting the Initial Nodal Temperature on the Joint Face of Concrete Dam

2011 ◽  
Vol 94-96 ◽  
pp. 1596-1600
Author(s):  
You Ping Zhu ◽  
Shou Kai Chen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Good Accuracy ◽  
New Method ◽  
Three Dimension ◽  
Concrete Dam ◽  
Field Simulation ◽  
Element Method

Because of lacking a rigid method of setting the initial nodal temperature on the joint face, the accuracy of temperature simulation would be affected in concrete dam. Based on finite element method (FEM) and principle of thermal conversation, we validate and extend a new method of setting the initial nodal temperature on the joint face in this paper. The result of temperature field simulation shows that this method has good accuracy in three-dimension temperature field simulation.

Research on Characteristics of the Soil Temperature Field around Vertical Double U-Tube Group of the Heat Exchangers

2012 ◽  
Vol 170-173 ◽  
pp. 2558-2563
Author(s):  
Jun Yang ◽  
Xiao Ping Miao ◽  
Xiao Feng Zhou ◽  
Xin Ping Wu
Keyword(s):  
Temperature Field ◽  
Soil Temperature ◽  
Heat Exchangers ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Tube Wells ◽  
Tube Well ◽  
Temperature Rate ◽  
One Year ◽  
Increasing Temperature

Based on the temperature monitoring for the double U-tube wells with thermal resistance , numerical simulation researching on two-dimensional temperature field and three-dimensional temperature field was carried out for vertical double U-tube group. Under the condition of 6.5m for horizontal spacing of tube well, the Soil temperature around inner tube wells increases 0.4°C in one year, and 0.24°C for the surrounding tube wells. The paper calculates the increasing temperature of the tube wells, 7.95°C for inner tube wells and 4.70°Cfor surrounding tube wells. The soil temperature of tube wells is rising with the running time increasing, however,the temperature rate of the soil around inner tube wells is larger than the surrounding tube wells’.

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