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백훈현(Hoon-Hyun Baek),유신원(Shin-Won Ryu),우영찬(Young-Chan Woo),이병인(Byung-In Lee),김봉호(Bong-Ho Kim),백욱현(Wook-Hyun Baek),백수곤 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
Power plant piping and pipe support/hanger failures cause forced outages at log time operation power plants. To prevent the power piping and support/hanger, piping systems surveillance program designed to evaluate existing piping installations will be helpful plant managing tools. These piping surveillance program is composed as piping displacement monitoring, Hot and cold walk-downs, hanger/support performance test, piping stress evaluation, etc. In most power plants, piping displacement monitoring devices are installed to each hanger. In this paper, optimization of power plant piping systems using reduced piping displacement monitoring devices are described.
백훈현(Hoon-Hyun Baek),유신원(Shin-Won Ryu),우영찬(Young-Chan Woo),김봉호(Bong-Ho Kim),이병인(Byung-In Lee),백욱현(Wook-Hyun Baek) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
To reduce the maintenance costs and get the economical man power rate regarding the power plant piping valve, flat sealing faces is required for the perfect valve seals. If this area is damaged, the flow control of the power piping systems reaches really hard condition. Finally the plant economics get troubles. For the quick and uncomplicated repair, portable valve grinding and lapping machines was developed. it can be used on site where the valve are located as in-situ. Using portable mechanism - stand-alone stationary machine - it is not necessary to remove the valve from the plant which contributes to an effective reduction in maintenance costs and thus the costs of outages. The machine has the functions, such as quickly change grinding disks and adjusting the grind pressure.
재료가 타지 않는 Dual Grill 개발 및 열전달의 상관관계에 관한 연구
백수곤(Soo-Gon Baek),김종덕(Jong-Duk Kim),권대선(Dae-Sun Kwon),하승우(Seung-Woo Ha),임정식(Jung-Sik Lim),함정일(Jung-Il Ham),이재정(Jae-Jung Lee),백훈현(Hoon-Hyun Baek),강성미(Sung-Mi Kang) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Various grill method and tools related with Grill Culture, one of main food culture of Korean are used widely. This study has the purpose that remove flame phenomenon that happen by grilling material. We manufactured Dual Grill in order to compensate for above defect, and studied about alternative relation that heat transmission of radiation, convection, conduction etc till heat from heat source reached to Dual Grill and material in experimentation came up to each one. Grill experiment used pork that is grill material that is popularized most and we made grill experiment with generally used Grill and Dual grill manufactured for experiment. In general Grill, experiment pork was proceeding with soot over progressing in time, and soot happened in a short time than general Grill by transferring conduction heat directly from Grill in case of experimenting without filing water in Dual grill's water pail. In case of experimenting o filling water pail and grill rae consisted of, by boiling-point of water controling naturally dual Grill's temperature by radiation, convection, conduction from heat source, unlike above two experiment soot doesn't occur to pork though time passes.
백수곤(Soo-Gon Baek),류호근(Ho-Geun Ryu),최기현(Ki-Hyun Choi),양두환(Doo-Hwan Yang),백훈현(Hoon_Hyun Baek),이병인(Byung-In Lee),김건영(Kun-Young Kim) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
When the nuclear power plant reaches the end of their lives, the whole machineries inside the containment vessels, aux. building, fuel handling building should be dismantled. To dismantle the nuclear equipments, a remote controlled cutting robot is useful. In this paper, the current status of the dismantling robots and new cutting robot mechanism was proposed. The main purpose of this system is to penetrate into the internals of the metal component. The slider which is located between the front and rear bodies propels the cutting manipulator. Extendable base to adjust the height, Angle changer for body bending, multi leg for fixing the position of dismantling components have been developed to control motions of the robot.
류신원(Shin-Won Ryu),백훈현(Hoon-Hyun Baek),이병인(Byung-In Lee),김봉호(Bong-Ho Kim) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
The objective of this paper is to develop an evaluating system of the power plant piping. This paper describes the evaluating tools such as piping displacements, piping vibrations. Piping systems of power plant are constantly constantly changing its displacement by the thermal fatigues, creeps, and hanger loads. Cyclic operation of power plants such as daily start-up, weekly start-up etc, accelerate the degradations of the piping. The non-link type measuring device regarding the power piping displacements are introduced in this paper.