Porous Pipe Dispersion Aquaculture Aerator Research Based on Two-Phase Flow Characteristics

2010 ◽  
Vol 33 ◽  
pp. 593-597
Author(s):  
Qi Dong Chen ◽  
Qing Zhang Chen

Aspects including the form of the porous pipe bubble, the working principle of the atomization burner, dissolved oxygen affected by degree of dryness for the gas-liquid two-phase flow of the gas pipe line and the parameterized relationship between water body and the system of dispersion aerator are analyzed from theory to test in this article. The control conditions for the maximum diameter of the micro-pore in the porous pipe and the largest pressure of the gas-liquid two-phase flow in this atomizer are got hold of. The design parameters of the porous pipe dispersion aquaculture aerator are found and bear out better by testing.

Equipment ◽  
2006 ◽  
Author(s):  
Marijus Seporaitis ◽  
S. Gasiunas ◽  
Raimondas Pabarcius

2021 ◽  
pp. 103813
Author(s):  
Dewei Wang ◽  
Shanbin Shi ◽  
Yucheng Fu ◽  
Kyle Song ◽  
Xiaodong Sun ◽  
...  

Data in Brief ◽  
2018 ◽  
Vol 16 ◽  
pp. 527-530 ◽  
Author(s):  
Abdalellah O. Mohmmed ◽  
Mohammad S. Nasif ◽  
Hussain H. Al-Kayiem

Author(s):  
Jorge Pinho ◽  
Patrick Rambaud ◽  
Saïd Chabane

The goal of this study is to understand the behavior of a safety relief valve in presence of a two-phase flow induced by cavitation, in which the mass flux tends to be reduced. Two distinct safety relief valves are tested: an API 2J3 type and a transparent model based on an API 1 1/2G3 type. Instead of using a spring, the design of both valves allows the adjustment of the disk at any desired lift. Tests are conducted with water at ambient temperature. Results show a similar influence of cavitation on the flow characteristics of both valves. The liquid pressure recovery factor FL, which is normally used to identify a choked flow condition in a control valve, is experimentally determined in a safety relief valve. The existence of a local minimum located at a height position L/D = 0.14 indicates in this position, a change on the flow characteristics of both valves. It is verified that the existence of a local minimum in the liquid recovery factor is related to the minimum cross section of the flow, which does not remain constant for every lift positions. Furthermore, it is remarked that in the case of the 2J3 safety valve, the blow down ring adjustment has significant influence on the location of the minimum cross sections of the flow.


2014 ◽  
Vol 28 (2) ◽  
pp. 153-160
Author(s):  
Kenichi KATONO ◽  
Goro AOYAMA ◽  
Takuji NAGAYOSHI ◽  
Kenichi YASUDA ◽  
Koji NISHIDA

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