Numerical and experimental analysis of thermal-flow characteristics in a pyrolysis reactor of a gas scrubber designed based on similitude theory

2020 ◽  
Vol 70 (5) ◽  
pp. 532-543
Author(s):  
Jonghyuk Yoon ◽  
Youngbae Kim ◽  
Hyoungwoon Song
Keyword(s):  
Experimental Analysis ◽  
Flow Characteristics ◽  
Thermal Flow ◽  
Pyrolysis Reactor ◽  
Similitude Theory

Experimental analysis on thermal and friction factor characteristics of fluid flow in tube with novel double strip helical screw tape

2019 ◽  
Vol 234 (6) ◽  
pp. 874-886
Author(s):  
Shashank R Chaurasia ◽  
RM Sarviya
Keyword(s):  
Nusselt Number ◽  
Fluid Flow ◽  
Friction Factor ◽  
Experimental Analysis ◽  
Flow Characteristics ◽  
Performance Ratio ◽  
Working Fluid ◽  
Flow Rates ◽  
Twist Ratio ◽  
Single Strip

An experimental analysis has been carried out to investigate the thermal and friction factor characteristics of fluid flow in a tube with double strip helical screw tape (DS-HST) inserts with different values of twist ratio and compared with single strip helical screw tape inserts and plain tube. Water is used as a working fluid at different flow rates with constant heat flux conditions. CFD analysis is also carried out to visualize thermal and fluid flow characteristics of fluid flow in tube with inserts. Experimental results have showed that Nusselt number and friction factor have attained excellent enhancement with double strip helical screw tape inserts in the range of flow rates than single strip helical screw tape inserts at the value of twist ratio 1.5. Correlation is also developed for Nusselt number with a range of Reynolds number, twist ratio and number of strips. Moreover, the performance ratio has attained maximum value at twist ratio of 2.5 with high values of flow rate. It is concluded that DS-HST is able to attain enhancement in the efficiency of heat exchanger, causing a reduction in size for thermal applications.

Effect of Hole Pitch Ratio and Compound Angle on the Thermal Flow Fields of Double-Jet Film Cooling Hole

2014 ◽  
Author(s):  
Moon-Young Cho ◽  
Hyeon-Seok Seo ◽  
Youn-Jea Kim
Keyword(s):  
Film Cooling ◽  
Numerical Study ◽  
Turbine Blades ◽  
Flow Characteristics ◽  
Thermal Flow ◽  
Film Cooling Effectiveness ◽  
Gas Turbine Blades ◽  
Ansys Cfx ◽  
Cooling Hole ◽  
Pitch Distance

In this study, the effect of a row of double-jet film-cooling hole configurations on the thermal-flow characteristics of gas turbine blades was examined. To investigate the effect of the interference of anti-kidney vortices, the ratios of the pitch distance and hole diameter (P/d=5, 6.25, 8.333) were considered with two different compound angles (λ=0°, 4°). The film cooling performance and the generated losses were studied. Then, the relevant mechanisms were identified and explained. A numerical study was performed using ANSYS CFX 14.5 with the shear stress transport (SST) turbulent model. The blowing ratio was kept at a constant value of M=1.5. The film cooling effectiveness and temperature distribution are graphically depicted with various geometrical configurations.

scholarly journals Numerical simulation and experimental analysis of labyrinth valve flow characteristics based on CFX

2020 ◽  
Vol 788 ◽  
pp. 012006
Author(s):  
Tao Wang ◽  
Maosheng Wang ◽  
Youliang Su ◽  
Song Mu ◽  
Kai Jing ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Analysis ◽  
Flow Characteristics

scholarly journals Experimental analysis of the flow characteristics of a pressure-atomised spray

2020 ◽  
Vol 85 ◽  
pp. 108624
Author(s):  
F. Felis ◽  
S. Tomas ◽  
A. Vallet ◽  
M. Amielh ◽  
F. Anselmet
Keyword(s):  
Experimental Analysis ◽  
Flow Characteristics

Experimental Analysis on Fuel Flow Characteristics in the Nozzle for Direct Injection Engines

1993 ◽  
Author(s):  
Kenji Date ◽  
Hiroyuki Nobechi ◽  
Hiroyuki Kano ◽  
Masaaki Kato ◽  
Takio Oya
Keyword(s):  
Experimental Analysis ◽  
Direct Injection ◽  
Flow Characteristics ◽  
Direct Injection Engines ◽  
Fuel Flow
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