공기냉각 방식을 적용한 초고온용 로(爐) 내 감시카메라에 관한 연구

Abstract

It is most accurate to observe the inside a furnace of ultra high temperature by putting the camera inside the furnace directly. In order to do so, thecamera must be cooled so that it can be put inside the furnace for observation. For such water cooling system, a cooling method of water, which flows in by making a tube jacket, absorbing and circulating the heat of a high temperature tube is applied. The cooling effect of such equipment decreases in the process of continuous circulation and so additional equipment is needed. In order to solve this problem, a study was conducted on equipment to increase the cooling effect by using the cooling method of purified air. Purified air cooling method intercepts radiant heat of heat energy of high temperature with air. Air moves and limits the increase of heat energy. At this moment, the amount of cooling air to maintain the appropriate temperature and velocity to maintain uniform temperature must be suggested. In order to satisfy these conditions, the size and length of lens tube must be found in the flow analysis of fluid. And, time for heat conduction according to the material must be substituted. Therefore, by realizing simulation on computer after finding the appropriate amount of flux, feasibility was confirmed. Through actual test on the spot, cooling effect was also confirmed. Finally, air cooling method by direct heat and radiant heat is decided by the following factors. By finding flux according to the section area of cooling size, time for heat conduction of metal and velocity of moving fluid of cooling method, there was satisfactory level of cooling effect in the air cooling method according to final amount of air. In order to get dispersion effect of radiant heat from these results, we found that cooling effect was higher for inner lens tube when algorithm is applied and lens tube is doubled. Henceforth, by applying such air cooling method, application of air cooling method becomes possible. We expect many improvements in the study of energy and environment with its easy to install structure and diffusion of economical air cooling system.