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http://dx.doi.org/10.5916/jkosme.2010.34.6.816

A Study on the Protecting Wall for Transferring Pipe of Waste Using Cast Basalt Tube  

Wang, Jee-Seok (한국해양대학교 기계.정보공학부)
Kim, Jong-Do (한국해양대학교 기관시스템공학부)
Yoon, Hee-Jong ((주)하존)
Abstract
The forces applying to an object in the transferring pipe of waste are analyzed and the equation of motion is established in this paper. It is shown that the equation of motion becomes the 1st order non-linear differential equation. Using its general solution, the velocity of the object in the transferring pipe of waste can be expressed in the explicit form. Noting that the velocity of object is impact velocity to the elbow or curved part of the transferring pipe of waste, the kinetic energy of the object can be calculated and the necessary impact strength of inner wall is obtained. The velocity of object is also calculated and presented in the graphic forms with the condition of air velocity 30m/sec. The impact test of cast basalt tube is carried out by the free fall of a weight and the test results show that the impact strength of the cast basalt tube is sufficient to apply to protecting inner wall of the transferring pipe of waste.
Keywords
Cast basalt; Automated waste collection; Drag coefficient; Transferring pipe; Final speed;
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