Venturi Scrubber Development and Implementation to Industry Scale

2021 ◽  
Author(s):  
Niko Räsänen ◽  
P Mäkelä ◽  
M Lindgren ◽  
Olli Pekkala
Keyword(s):  
Particuology ◽  
2019 ◽  
Vol 47 ◽  
pp. 63-69
Author(s):  
Shuai Yang ◽  
Xiangdi Zhao ◽  
Wanfu Sun ◽  
Jiwu Yuan ◽  
Zheng Wang

2020 ◽  
Vol 20 ◽  
pp. 101167
Author(s):  
Manisha Bal ◽  
Ipsita Dipamitra Behera ◽  
Usha Kumari ◽  
Subrata Biswas ◽  
B.C. Meikap

2005 ◽  
Vol 55 (3) ◽  
pp. 319-325 ◽  
Author(s):  
Chuen-Jinn Tsai ◽  
Chia-Hung Lin ◽  
Yu-Min Wang ◽  
Cheng-Hsiung Hunag ◽  
Shou-Nan Li ◽  
...  

Author(s):  
P. Papadopoulos ◽  
T. Lind ◽  
H.-M. Prasser

After the accident in the Fukushima Daiichi nuclear power plant, the interest of adding Filtered Containment Venting Systems (FCVS) on existing nuclear power plants to prevent radioactive releases to the environment during a severe accident has increased. Wet scrubbers are one possible design element which can be part of an FCVS system. The efficiency of this scrubber type is thereby depending, among others, on the thermal-hydraulic characteristics inside the scrubber. The flow structure is mainly established by the design of the gas inlet nozzle. The venturi geometry is one of the nozzle types that can be found in nowadays FCVS. It acts in two different steps on the removal process of the contaminants in the gas stream. Downstream the suction opening in the throat of the venturi, droplets are formed by atomization of the liquid film. The droplets are contributing to the capture of aerosols and volatile gases from the mixture coming from the containment. Studies state that the majority of the contaminants is scrubbed within this misty flow regime. At the top of the venturi, the gas stream is injected into the pool. The pressure drop at the nozzle exit leads to the formation of smaller bubbles, thus increasing the interfacial area concentration in the pool. In this work, the flow inside a full-scale venturi scrubber has been optically analyzed using shadowgraphy with a high-speed camera. The venturi nozzle was installed in the TRISTAN facility at PSI which was originally designed to investigate the flow dynamics of a tube rupture inside a full-length scale steam generator tube bundle. The data analysis was focused on evaluating the droplet size distribution and the Sauter mean diameter under different gas flow rates and operation modes. The scrubber was operated in two different ways, submerged and unsubmerged. The aim was to include the effect on the droplet sizes of using the nozzle in a submerged operation mode.


2019 ◽  
Vol 364 ◽  
pp. 406-418 ◽  
Author(s):  
Manisha Bal ◽  
Thamatam Tejaswini Reddy ◽  
B.C. Meikap
Keyword(s):  

2012 ◽  
Vol 29 (1) ◽  
pp. 99-106 ◽  
Author(s):  
N. A. G. Puentes ◽  
V. G. Guerra ◽  
J. R. Coury ◽  
J. A. S. Gonçalves

2014 ◽  
Vol 9 ◽  
pp. 15-26 ◽  
Author(s):  
R. Desai ◽  
O.P. Sahu

A venturi scrubber is designed to effectively use the energy from the inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls. The air pollution generated from the industry is now become serious problem for the environment, which affect the living and non living thing on the Earth. Among all the air pollution monitoring equipment venturi scrubber found to suitable for prevention of air pollution by pesticide. It was found that scrubber shows 99.1 % efficiency.


1981 ◽  
Vol 12 (1-3) ◽  
pp. 33-68 ◽  
Author(s):  
DOUGLAS B. ROBERTS ◽  
JAMES C. HILL
Keyword(s):  

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