Purifying the Underground Particulate Matter
Professor Jo Byung-wan (Department of Civil and Environmental Engineering, College of Engineering)
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The danger of particulate matter, which are the extremely small hazardous particles suspended in air, has been brought to public attention lately, but the high level of particle pollution inside the subway tunnels are often disregarded. High-speed trains, rail structures, crossties, and roadbeds in airless tunnels produce a large amount of heavy metal particles that cause health problems in the human respiratory and brain nervous systems. To solve this, Professor Jo Byung-wan (Department of Civil and Environmental Engineering, College of Engineering) obtained a patent on the efficient purification of underground particulate matter.
The existing dust collector, which uses a huge motor, had problems with the high energy cost and loud noise, and, thus, are usually not activated. Instead, Jo sought for an economic and scientific method to purify the underground air. As a result, his research was conducted for a period of two years.
Jo’s method was based on the Bernoulli principle, which states that the sum of potential energy and kinetic energy of fluid is always constant. The tube designed by Jo gathers the particulate matter by natural ventilation derived from the Bernoulli principle. After the particulate matter gathers up, a charge method of plasma and water particles removes the charge of matter, enabling efficient air cleaning.
"What's left is the cooperative research with the metropolitan metro for an actual implementation." Jo expects this new invention to lead to a healthier change in the international subway construction. “I am also planning to suggest a customized particulate matter gauge for each underground tunnel by analyzing the characteristics of dynamic fluid in train running," said Jo.
Hwang Hee-won firstname.lastname@example.org
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