Design of perforated plate for uniform flow distribution in heat-exchanger unit of SFR steam generator

2021 ◽  
Author(s):  
Van Toan Nguyen ◽  
Sun Rock Choi ◽  
Yohan Jung ◽  
Sunghyuk Im ◽  
Byoung Jae Kim
Keyword(s):  
Heat Exchanger ◽  
Steam Generator ◽  
Perforated Plate ◽  
Flow Distribution ◽  
Uniform Flow ◽  
Uniform Flow Distribution

Characteristic Analysis of the Influence of Flow Rate Distribution in Each Flat Tube of Parallel Flow Heat Exchanger to Heat Transfer

2014 ◽  
Vol 1008-1009 ◽  
pp. 927-933
Author(s):  
Hai Jiang Yang ◽  
Ming Li ◽  
Xiao Ye Xue ◽  
Yan Liu ◽  
Kui Huang
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Transfer Rate ◽  
Flow Distribution ◽  
Uniform Flow ◽  
Parallel Flow ◽  
Transfer Efficiency ◽  
Heat Transfer Efficiency ◽  
Uniform Flow Distribution ◽  
Flow Heat

In this paper, the heat transfer rate of parallel flow heat exchanger was obtained in the condition of non-uniform flow distribution by 3D numerical simulation. The maximum theoretical heat transfer rate of parallel flow heat exchanger was obtained through 1D calculation. Ultimately, the correlation of the influence of non-uniform flow distribution on heat transfer efficiency was obtained by the comparative analysis of non-uniform flow distribution and heat transfer efficiency and regression calculation. It was found that the forecasted heat transfer efficiency error of correlation was within 2%.

Analysis of non-uniform flow distribution in parallel micro-channels

2019 ◽  
Vol 33 (8) ◽  
pp. 3859-3864 ◽  
Author(s):  
Jungchul Kim ◽  
Jeong Heon Shin ◽  
Sangho Sohn ◽  
Seok Ho Yoon
Keyword(s):  
Flow Distribution ◽  
Uniform Flow ◽  
Micro Channels ◽  
Uniform Flow Distribution

Precision Water Distribution Control of New Type Sewage Distributor

2012 ◽  
Vol 155-156 ◽  
pp. 1015-1019
Author(s):  
Yi Shu Hao ◽  
Kai Shun Ji ◽  
Zong Yue Liu
Keyword(s):  
Pid Controller ◽  
Water Distribution ◽  
Sewage Treatment ◽  
Flow Distribution ◽  
Uniform Flow ◽  
Controlled System ◽  
Uniform Flow Distribution ◽  
Stepper Motors ◽  
New Type ◽  
Novel Method

This paper focuses on the issues of uniform flow distribution control for sewage treatment devices. A novel method for uniform flow distribution was proposed, in which a new type sewage distributor employing two phrase stepper motors is integrated to replace the conventional one. The model of permanent magnet stepper motor is mainly discussed. A proportional-integral-derivative (PID) controller is designed for this new type distributor. The performance of general controlled system is simulated, compared by tuning the parameters. And the control system is evaluated in practical use.

Effect of Non Uniform Flow Distribution on Single Phase Heat Transfer in Parallel Microchannels

2007 ◽  
Author(s):  
Akhilesh V. Bapat ◽  
Satish G. Kandlikar
Keyword(s):  
Heat Transfer ◽  
Friction Factor ◽  
Single Phase ◽  
Flow Distribution ◽  
Uniform Flow ◽  
Hydrodynamic Performance ◽  
Flow Area ◽  
Cross Sectional ◽  
Uniform Flow Distribution ◽  
Parallel Microchannels

The continuum assumption has been widely accepted for single phase liquid flows in microchannels. There are however a number of publications which indicate considerable deviation in thermal and hydrodynamic performance during laminar flow in microchannels. In the present work, experiments have been performed on six parallel microchannels with varying cross-sectional dimensions. A careful assessment of friction factor and heat transfer in is carried out by properly accounting for flow area variations and the accompanying non-uniform flow distribution in individual channels. These factors seem to be responsible for the discrepancy in predicting friction factor and heat transfer using conventional theory.

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