scholarly journals Uniform flow distribution to stacked parallel disk channels in a disk shape small-capacity SOFC stack model

2020 ◽  
Author(s):  
Kazumi TSUNODA ◽  
Koichi TAKEYAMA ◽  
Tsuyoshi OISHI
Keyword(s):  
Flow Distribution ◽  
Uniform Flow ◽  
Parallel Disk ◽  
Uniform Flow Distribution ◽  
Small Capacity ◽  
Stack Model

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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