Experimental Study of the Underwater Shock Wave on the High-Voltage Electric Discharge by Carbon Fiber

2013 ◽  
Vol 767 ◽  
pp. 261-264
Author(s):  
Hironori Maehara ◽  
Shigeru Tanaka ◽  
Kazuyuki Hokamoto ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
Experimental Study ◽  
Carbon Fiber ◽  
Thin Plate ◽  
Electric Discharge ◽  
High Voltage ◽  
High Capacity ◽  
Underwater Shock Wave ◽  
Underwater Shock

Carbon fiber is employed to induce underwater shock wave by the high-voltage electric discharge. By the release of an energy 10 kJ stored in a high-capacity condenser bank, carbon fiber was exploded showing the evidence inducing underwater shock wave effectively to a thin plate to be formed.

Experimental Study on Food Seasoning Treatment by High Voltage Electrical Discharge with Shock Wave Food Processor

2013 ◽  
Vol 767 ◽  
pp. 265-268
Author(s):  
Hironori Maehara ◽  
Seisaku Iwasa ◽  
Toshiaki Watanabe ◽  
Kazuyuki Hokamoto ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
Experimental Study ◽  
High Voltage ◽  
Food Processing ◽  
Electrical Discharge ◽  
Processed Foods ◽  
Underwater Shock Wave ◽  
Large Current ◽  
Japanese Radish ◽  
Underwater Shock

In recent years, a method of food processing using underwater shock wave has been investigated. The underwater shock wave is generated by high voltage and large current gap discharge in water, and it is used for food processing in the present investigation. When the underwater shock wave is loaded on the food, the food cells are momentarily broken. Therefore, the food becomes soft, and possible to squeeze water easily. Also, seasonings can be penetrated inside of the food. The improvement of absorbing seasonings for the shock processed foods mainly on Japanese radish is reported in this paper.

Destruction of Concrete Block Using Underwater Shock Wave Generated by Electric Discharge

2006 ◽  
Author(s):  
Masahiko Otsuka ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
High Voltage ◽  
High Speed ◽  
Concrete Block ◽  
Metal Wire ◽  
High Speed Camera ◽  
Underwater Shock Wave ◽  
Underwater Shock ◽  
Made In

In this study, the destruction of concrete block using underwater shock wave generated by electric discharge was studied. Initially, the shock wave generated by electric discharge was investigated by optical observation using a high-speed camera and pressure measurement. A comparison of the underwater shock wave generated from the electrode with and without connecting a metal wire was made. A metal wire was connected to an electrode and a high voltage impulsive current was passed through it to generate the underwater shock wave. A hole was made in the concrete block, filled with water and an electrode was inserted into the hole, which acts as a pressure vessel. The electric current was passed through this electrode to generate underwater shock wave for the destruction of concrete block.

scholarly journals The Basic Research for Pulverization of Rice Using Underwater Shock Wave by Electric Discharge

2011 ◽  
Vol 5 (2) ◽  
pp. 115-130 ◽  
Author(s):  
Makoto Ide ◽  
Manabu Shibuta ◽  
Naoyuki Wada ◽  
Shigeru Tanaka ◽  
Hideki Hamashima ◽  
...  
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
Basic Research ◽  
Underwater Shock Wave ◽  
Underwater Shock

Research About Pulverization of Rice Using Underwater Shock Wave by Electric Discharge

2010 ◽  
Author(s):  
Makoto Ide ◽  
Seiichi Irie ◽  
Nobuyuki Matsuo ◽  
Asuka Oda ◽  
Shigeru Tanaka ◽  
...  
Keyword(s):  
Shock Wave ◽  
Electric Discharge ◽  
Food Samples ◽  
Frictional Heat ◽  
Underwater Shock Wave ◽  
Manufacturing Method ◽  
Application Techniques ◽  
Rate Improvement ◽  
Underwater Shock ◽  
Rice Powder

In recent years, it is expected that the consumption of rice powder in Japan increases for food self-support rate improvement. The consumption of enormous energy during making rice powder and loss of starch in rice by frictional heat is occurred by using the existing manufacturing method. Application techniques using underwater shock wave which is generated by high voltage electric discharge are studied in our laboratory. When some food samples are treated by underwater shock wave, following advantages are obtained, a little heat treatment, decreasing consumption of the energy, and shortening of processing time. In food processing using underwater shock wave, the spalling destruction due to propagation characteristics of shock wave and mediums, which have difference density, is used. In this study, the pressure vessel for pulverization of rice was developed, and then, intensity of pressure in vessel is measured by way of experiment, and simulated numerical analysis.

An Alternative Thin-Plate Welding Technology Using Underwater Shock Wave

2012 ◽  
Vol 26 (10-11) ◽  
pp. 1733-1743 ◽  
Author(s):  
Wei Sun ◽  
Xiaojie Li ◽  
Honghao Yan ◽  
Xiaohong Wang
Keyword(s):  
Shock Wave ◽  
Thin Plate ◽  
Underwater Shock Wave ◽  
Welding Technology ◽  
Underwater Shock

scholarly journals P39 Experimental study on Smashing Technique of Glass Container by Underwater Shock Wave

2005 ◽  
Vol 2005 (0) ◽  
pp. 501-502
Author(s):  
Hidetoshi SAKAMOTO ◽  
Shinjirou KAWABE ◽  
Masahiro HIMENO ◽  
Kazuyuki SATOH ◽  
Shigeru ITOH
Keyword(s):  
Shock Wave ◽  
Experimental Study ◽  
Glass Container ◽  
Underwater Shock Wave ◽  
Underwater Shock

Research on the Underwater Shock Wave Generated by Discharge of High Voltage Impulsive Current

2005 ◽  
Author(s):  
Masahiko Otsuka ◽  
Kouhei Inoue ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
High Voltage ◽  
High Energy ◽  
Resistance Rate ◽  
Pulsed Power ◽  
Metal Wire ◽  
Underwater Shock Wave ◽  
Wire Explosion ◽  
Underwater Shock ◽  
Velocity Pressure

The high energy generated from electric pulsed power has various applications. We investigated the underwater shock wave generated by the metal wire explosion and the electric discharge of electrode using high voltage impulsive current. This investigation was performed using optical observation, pressure measurement and current measurement. In the case of metal wire explosion, the velocity, pressure and the current value of underwater shock wave obtained from the experimental data is proportional to the electric resistance rate. In the other case, the discharge from the electrode, the velocity of the underwater shock wave generated by the discharge of electrode with metal wire explosion is faster than the underwater shock wave generated by the discharge of the electrode without metal wire.

Pressure Measurements and Numerical Simulation of Underwater Shock Wave for Food Processing

2013 ◽  
Vol 767 ◽  
pp. 229-232
Author(s):  
Seisaku Iwasa ◽  
Akio Kira ◽  
Hironori Maehara ◽  
Masatoshi Nishi ◽  
Toshiaki Watanabe ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Food Processing ◽  
Applied Pressure ◽  
High Capacity ◽  
Experimental Conditions ◽  
Underwater Shock Wave ◽  
Food Container ◽  
Elastic Bar ◽  
Underwater Shock

This study attempts to clarify underwater shock waves using a food container designed for food processing. The underwater shock wave is driven by a spark or wire explosion from a high-capacity condenser bank. Since the applied pressure must be known to control the experimental conditions, a numerical simulation was conducted and the results were compared with measurements using an elastic bar placed in the water.

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