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郭光洙 忠州大學校 1995 한국교통대학교 논문집 Vol.30 No.2
The low grade anthracite combustion was studied with respect to the burning fluidized bed. These experiments were performed in the heating at 700-1000℃ temperature. Combustion zone was experimentally confirmed by analyzing the temperature and aspect ratio change in the bed after injecting a small amount coal particles to the hot ash fluidized bed. Feed of the coal inputs at the top of bed and discharges at the bottom of the bed. Through this investigation 1. The optimum air flow rate was 20 lit/min 2. The value of aspect ratio(L/D) was 1.5 3. The combustor operating optimum temperature was about 900℃
郭光洙 忠州大學校 1991 한국교통대학교 논문집 Vol.25 No.-
Important industrial dust collection equipments are gravity setting chambers, impingment dust collectors gascyclone dust collectors, scrubbers, electrical precipitators, air filters, sonic dust collectors. Among these equipments gas cyclone is widely used for industrial separation and desirable to collect as much of the fine particles as possible from the gas. This study obtained the optimum conditions from variable factors of gas cyclone. The obtained results are as follow. 1. The optimum feed velocity of gas cyclone is 17m/sec, but increased velocity is not effective for collection dust. 2. The optimum vortex finder length of gas cyclone is 0.7D. 3. The dust collection efficiency increases when d/D, h/D rate grow up 0.4 to 0.56 and e/D rate grow up 0.2 to 0.3
곽광수 忠州大學校 2005 한국교통대학교 논문집 Vol.40 No.2
The agitation of a liquid system is primary a problem of fluid dynamics. Agitated vessel has an usually large number of choices to make as to type and location of the impeller, the proportions of the vessel, the number and proportions of the baffles. The power consumed in fully baffled mixing vessels of various sizes was measured for solid-liquid system consisting of water and standard sand. The design criteria strictly adhered to in this investigation was the requirement of 100% mixing throughout with a straight vane impeller without disk. A relationship was obtained for this two-phase system from which the power consumption requirement far variable speed against diameter and width.
알켄닐의 질소-아실화된 글루타민산염류의 세정력과 유화력
곽광수 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.2
Those four sorts of n-alkene-1 with lipophile in C8-C14 range of long chain alkyl with radical quality and maleic anhydride were synthesised into four sorts of 2-alkenyl succinate anhydride(ASA) with high yield of 90-95% by Dieles-Alder reaction at acid catalyst, and with these ASA, di sodium 2-alkenyl succinate(SAnS) was obtained by hydrolysis in alkali solution. From the reaction with ASA and sodium L-glutamate, sorts of water-soluble protein, in alkali solution by Shotten Bauman method, sodium 2-alkenyl succinoyl L-glutamate(SAnSG) with high yield of 93-97% was synthesised which are four kinds of new N-acylated protein surfactant. The detergency of synthesised N-acylated protein surfactant showed maximum detergency in PIT area. This is due to the occurrence of more solubilization of organic material in these intermediate microemulsion phase of products.
郭光洙 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.2
Crude petroleum is made up of hundreds of different several chemicals from methane to asphalt. Although most of the constitutents are hydrocarbons(83 to 87% carbon and 11 to 15% hydrogen), ultimate analyses indicate the presence in smail quantities of nitrogen(0 to 0.5%), sulfer(0 to 6%), and oxygen(0 to 3.5%). Sulfer eliminated in the form of hydrogen sulfides vecomes significant process. Desulfurization process that destroy and remove other sulfur compounds along with mercaptanes, hydrogen sulfide, and sulfur is economically significant process and widely applied in petroleum refining because of increasing demand for fuels containing the smallest amounts as well as for the environmental protection. The research attempts to carry out experiment several conditions from space velocity, effect of catalyst, reaction temperature, reaction pressure, effect of hydrogen partial pressure and reaction rate of Co/Mo composition.
郭光洙 忠州大學校 1996 한국교통대학교 논문집 Vol.31 No.2
Fluidized-solids usage has developed since the advance of Winkler process for gasfication of coal. Burning fluized bed will be applied to the design of industrial equipment and characterized by the variation in extent of combution reactor and properties of material combution. The type of discharge mechanism utilized is dependent upon the necessity of sealing the atmosphere inside the fluidized bed and the subsequent treatment of the solids. Through this investigation we can induce results as follows : 1. The optimum recycls ration was .5∼2.0/feed. 2. The value of aspect ratio(L/D) was 1.7 while combution operation optimum temperature was about 900℃. 3. NO?? substance is increasing in properties as temperature increase.
流體의 Paddle 攪拌에 따른 Power特性에 關한 硏究
郭光洙 忠州大學校 1986 한국교통대학교 논문집 Vol.20 No.1
The agitator in every industrial process with several different points. But agitation is still an art, based largely on accumulated expirience. The agitation of liquid system is primarily a problem of fluids dynamic. This work studied power consumption of paddle agitator operating in liquid system. Power consumption related to the turning at a given speed and diameter of and given geometry paddle agitator type. The correlation of power consumption have plotted variable speed against paddle diameter and width.