scholarly journals Experimental investigation of the thermal and disinfection performances of a novel hydrodynamic cavitation reactor

2018 ◽  
Vol 49 ◽  
pp. 13-23 ◽  
Author(s):  
Xun Sun ◽  
Jong Jin Park ◽  
Hyun Soo Kim ◽  
Seung Ho Lee ◽  
Si Jin Seong ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Hydrodynamic Cavitation

scholarly journals Hydrodynamic Cavitation-Assisted Synthesis of Nanocalcite

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Shirish H. Sonawane ◽  
Sarang P. Gumfekar ◽  
Kunal H. Kate ◽  
Satish P. Meshram ◽  
Kshitij J. Kunte ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Particle Size ◽  
Systematic Study ◽  
Energy Efficient ◽  
Reaction Rate ◽  
Hydrodynamic Cavitation ◽  
Orifice Diameter ◽  
Particle Size Reduction ◽  
Carbonation Process ◽  
Reactor Geometry

A systematic study was made on the synthesis of nanocalcite using a hydrodynamic cavitation reactor. The effects of various parameters such as diameter and geometry of orifice,CO2flow rate, andCa(OH)2concentration were investigated. It was observed that the orifice diameter and its geometry had significant effect on the carbonation process. The reaction rate was significantly faster than that observed in a conventional carbonation process. The particle size was significantly affected by the reactor geometry. The results showed that an orifice with 5 holes of 1 mm size resulted in the particle size reduction to 37 nm. The experimental investigation reveals that hydrodynamic cavitation may be more energy efficient.

Experimental Investigation on Enhancive Effect of Hydrodynamic Cavitation

2013 ◽  
Vol 781-784 ◽  
pp. 2865-2869
Author(s):  
Jie Deng ◽  
Ai He Wang ◽  
Cai Wen Wang
Keyword(s):  
Methylene Blue ◽  
Experimental Investigation ◽  
Free Radicals ◽  
Water Flow ◽  
Flow Speed ◽  
Cavitation Number ◽  
Hydrodynamic Cavitation ◽  
Experimental Unit ◽  
Operating Parameters ◽  
Pressure Discharge

Based on the principle of hydraulics,an effective equipment of hydrodynamic cavitation is designed and built in this paper.The orifice plates with various geometry size were used as hydrodynamic cavitation generator to study the relation ship between many factor,such as,inlet pressure,discharge,flow speed in orifice,and the cavitation number.Analysis of water flow cavitation status for the experimental unit,this device can produce cavitation phenomenon.The methylene blue and spectrophotometer method can capture the free radicals generated successfully.This is an effective way to measuring the free radicals quantitatively in cavitation,moreover it is easy to fulfill.The intensity of cavitation increases with reduction in the cavitation number.By analyzing the influence of cavitation number on concentrations of •OH.It would be strength of hydrodynamic cavitation.The effect of operating parameters,such as inlet press,low speed in orifice and optimum the structure of hydrodynamic cavitation,best condition of the hydrodynamic cavitation is the inlet press、flow speed in orifice 14 m/s、 0.07.

scholarly journals Experimental investigation of hydrodynamic cavitation through orifices of different geometries

2017 ◽  
Vol 143 ◽  
pp. 02098 ◽  
Author(s):  
Pavel Rudolf ◽  
Dávid Kubina ◽  
Martin Hudec ◽  
Jiří Kozák ◽  
Blahoslav Maršálek ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Hydrodynamic Cavitation

Cavitation-Boiling Coupling Phenomenon Experimental Investigation of R134A Flow in Microchannel

2011 ◽  
Author(s):  
Aiguo Wang ◽  
Junfei Yuan ◽  
Dawei Tang ◽  
Hongzhang Cao
Keyword(s):  
Experimental Investigation ◽  
Flow Rate ◽  
Wall Temperature ◽  
Flow Region ◽  
Initial Position ◽  
Copper Plate ◽  
Main Flow ◽  
Hydrodynamic Cavitation ◽  
Micro Channel ◽  
Heat Power

Cavitation-boiling coupling phenomenon of R134a flow in micro-channel was experimentally investigated. The cavitation structure, a rectangular micro-orifice 0.2 mm wide and 4mm long, embedded in a micro-channel 0.8 mm wide and 1 mm deep which was engraved on an oxygen-free copper plate covered with quartz glass. Electric film heater was employed under the copper bottom corresponding cavitation structures. Flow patterns were observed by microscope. In the experiment, a phenomenon was observed that hydrodynamic cavitation occurred easier as the mass flow rate increasing. The microchannel wall temperature increased and then decreased along channel with heat power, and flow regimes were different when heat power changed. The cavitation initial position is the corner behind the cavitation structure but not the main flow region.

Do moods and expectancies have unique or interactive effects?: An experimental investigation

2014 ◽  
Author(s):  
Shane Close ◽  
Victoria Adkins ◽  
Kandice Perry ◽  
Katheryn Eckles ◽  
Jill Brown ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interactive Effects
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