http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 백원석 ( Won Seok Baek ) (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
정동현 ( Dong Hyun Jung ),백원석 ( Won Seok Baek ),김승호 ( Seung Ho Kim ),전영남 ( Young Nam Chun ) 조선대학교 공학기술연구원 2008 공학기술논문지 Vol.1 No.1
This study produces absorbent through physical and chemical activation. Optimum activation conditions are established from changing the variables that are CO2 input amount, chemicals mixing rate, activated temperature and activated time. As result of this study, Physical activation method is confirmed in case of CO2 activation that CO2 input amount “80 ml/min”, activated temperature “700℃” and activated time “90 min”. At the time, iodine adsorptivity and specific surface area shown that 272.53 mg/g and 115.04 ㎡/g. Chemical activation method is confirmed with optimum condition among chemicals in case KOH activation that activated temperature “600℃”, KOH mixing rate “1:1”, activated time “90min”. At the time, iodine adsorptivity and specific surface area shown that 412.0 mg/g and 163.92 ㎡/g. Also, the pore development and characteristic was confirmed by nitrogen adsorption and SEM.
-
전영남,백원석,송형운,유경석,김성천 조선대학교 환경공해연구소 2004 環境公害硏究 Vol.18 No.-
The advanced waste oil incinerator is suggested that has heat recirculation region in the combustor to burn out the waste oil completely in high temperature zone and heat recuperator in the left side of combustion cavity which plays a role of the flame stabilization of main burner flame by heat recovery of exhaust gas to incinerate waste oil contained water. In order to investigate a simultaneously incineration efficiency of the vessel waste oil contained the hazardous waste which occurs from the vessel and the sea outflow waste oil experiments have been carried out using the emulsion fuel mixed the water and bunker fuel oil C and the blend mixed the light oil and the waste surrogate material (acetonitrile:CH_(3)CN). The results of experiments showed that the waste oil incinerator developed in this study was excellent for the incineration efficiency of waste oil at an air ratio of 1.46 and DRE (destruction and removal efficiencies) of CH_(3)CN was 99.9996% ("5 nines"). And optimum operating conditions for the secondary air flow rate of internal mix burner, preheating temperature and injection point of shipboard waste oil contained acetonitrile were suggested.
-
전영남,백원석,김승호,김미환 조선대학교 환경연구소 2001 環境硏究 Vol.17 No.2
Cyclone combustors are being used for burning a wide range of fuel such as, low calorific value gas, waste water, sludge, coal, etc. The 3-dimensional swirling flow in a tangential inlet cyclone combustor with different inlet conditions and dimensions are simulated using a standard k-e turbulence model. The main parameters considered in this work are inlet velocity, inlet number, exit diameter, body length, vortex finder length and inlet area. The results show that the change of parameters has an influence on the shape and size of recirculation zones, vortex core and flow field, which are important factors for combustion efficiency and emissions. The application of this kind of computer program looks promising as a potential tool for optimum design of a cyclone combustor with high level of the swirling flow.
-
전영남,송형운,백원석 조선대학교 환경공해연구소 2006 環境公害硏究 Vol.19 No.1
The purpose of this study lies primarily on the development of the sludge dryer for the dehydrated sludge of moisture content with 70~80 wt.%. The sludge dryer was modified from the rotary kiln type dryer. A numerical simulation on the thermal flow performance in the sludge dryer was carried out to investigate the design factor and operating conditions, Parametric screening studies were carried out for variations of the following variables: dryer shape, injection length of combustion air, velocity of combustion air, temperature of combustion air. By predictive results, the sludge dryer has a good drying characteristics so that input sludge increased with retention time by recirculation zone of high temperature combustion gas in the bed of sludge dryer. Parametric screening studies have been conducted to study optimal dryer shape and operating condition.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
