http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전유택(Yootaek JEON),박승환(Seunghwan PARK),박병철(Byungcheol PARK),강성균(Sunggyun KANG) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
As interest in sustainable and eco-friendly energy increases, demand for hydrogen energy is also increasing. Hydrogenogenic CO oxidation (CO + H₂O → CO₂ + H₂) has the potential for H₂ production as a clean renewable fuel. In this study, it was developed economic biological hydrogen technology utilizing renewable resources such as industrial by-product gas including carbon monoxide, using the Thermococcus Onnurineus NA1. Pilot plant was designed and constructed in order to convert from CO in LDG which is a by-product gas of steel mill to H₂ and implemented the technology through demonstration. 2.4 Nm³/h of LDG was continuously supplied to 1t culture medium reaction tank. As a result, 97% CO gas in LDG was converted into hydrogen gas and hydrogen content in the product gas is 40% or more. The purity of product gas was increased to 99.9% hydrogen gas by PSA. The high purity hydrogen gas was successively used to generate electricity by fuel cell system which has developed in Hyundai Steel. This results is the first demonstration of H₂ production from steel mill by-product gas by a carboxydotrophic hydrogenogenic microbe.
우드펠릿 전소 보일러에서의 내화벽돌 제거에 따른 영향 분석
함영준(Youngjun Ham),김태형(Taehyung Kim),박병철(Byungcheol Park) 한국연소학회 2021 KOSCOSYMPOSIUM논문집 Vol.2021 No.5
Several problems arose after converting a power plant using coal to a boiler using wood pellets. To solve this problem, the refractory material in the boiler furnace was removed, and a performance test was re-run to evaluate the operating condition. Through two performance tests, the change of the boiler condition before and after removing refractory material in the boiler furnace was analyzed.
허광희 ( Heo Gwanghee ),이우상 ( Lee Woosang ),이규 ( Lee Giu ),서동환 ( Seo Dongwhan ),전준룡 ( Jeon Joonryong ),박병철 ( Park Byungcheol ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2
This paper attempts to compute the coefficients of subgrade reaction from which the supporting capacity of piers can be estimated, using dynamic responses of energy applied to the vertical axis of piers in order to evaluate the safety of piers. To compute the coefficients of subgrade reaction, we built up a standard pier, using elastic springs already known which would represent a real condition of ground. We also induced a general relation expression between coefficients of subgrade reaction and eigen value, from numerical formula. After experiments regarding to dynamic responsive properties of a real standard pier, coefficients of subgrade reaction were computed by substituting dynamic properties for the general relation expression. Comparing those results and experimental data, we proved the usefulness of the general relation expression induced in this study.
허광희(Heo Gwanghee),이우상(Lee Woosang),이규(Lee Giu),서동환(Seo Dongwhan),전준룡(Jeon Joonryong),박병철(Park Byungcheol) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-
This paper attempts to compute the coefficients of subgrade reaction from which the supporting capacity of piers can be estimated, using dynamic responses of energy applied to the vertical axis of piers In order to evaluate the safety of piers To compute the coefficients of subgrade reaction, we built up a standard pier, using elastic springs already known which would represent a real condition of ground We also induced a general relation expression between coefficients of subgrade reaction and eigen value, from numerical formula. After experiments regarding to dynamic responsive properties of a real standard pier, coefficients of subgrade reaction were computed by substituting dynamic properties for the general relation expression. Comparing those results and experimental data, we proved the usefulness of the general relation expression induced in this study