http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
CO2 제거용 흡착제를 이용한 스마트 환기시스템 개발 연구
신재란(Jae-Ran Shin),문성호(Sung-Ho Moon),김재강(Jae-Kang Kim),최진식(Jin-Sik Choi),임윤희(Yun-Hui Lim),박병현(Byung-Hyun Park),이주열(Ju-Yeol Lee) 한국유화학회 2015 한국응용과학기술학회지 Vol.32 No.3
In this study, We evaluated the efficiency of the smart ventilation system being developed at the test-bed(KCL). Smart ventilation system improve the indoor air quality by absorbing carbon dioxide. It is reducing the infusion of outside air can be reduced to minimum energy consumption. To evaluate the energy savings and carbon dioxide removal efficiency. It was more effective when working with air conditioning and ventilation system at the same time.
신재란,임윤희,이주열,박병현,Shin, Jae Ran,Lim, Yun Hui,Lee, Ju Yeol,Park, Byung Hyun 한국응용과학기술학회 2015 한국응용과학기술학회지 Vol.32 No.2
고로슬래그는 유동성 장기강도 및 내구성이 좋고 수화열을 낮아 경화체를 제조함에 따른 적용성이 우수하지만, 몇 가지 문제점을 갖는다. 시공시간이 증가하고 회전속도가 늦고 초기강도가 낮다. 본 연구에서는 알칼리활성화를 이용한 경화체 제조에 있어 필요한 알칼리 수용액을 해수담수화 과정에서 발생하는 농축수의 전기분해를 통하여 공급하였으며. 알칼리 수용액을 이용하여 고로슬래그와 경화체를 제작하였다. 결과는 다음과 같이 요약할 수 있다 : 모르타르의 압축강도는 NaOH 2%이하일 때는 감소하고, 6% 이하까지는 증가한다. 그리고 NaOCl의 함량이 증가할수록 압축강도도 증가한다. 그러나 NaCl이 모르타르에 존재하면 초기강도보다 재령 28일차 강도는 감소하게 된다. Blast Furnace Slag is good for enhancing the qualities of concrete such as reducing hydration heat increasing fluidity, long-term strength and durability, but it has some problems: construction time is increased or the rotation rate of form is decreased due to low development of early strength. In this study, an aqueous alkali solution for alkali activated reaction was obtained by the electrolysis using concentrated water discharged from seawater desalination process. Prepared aqueous alkali solution was applied to produce mortars using blast furnace slag. The results can be summarized as follows : For the mortar, compressive strength was decreased below 2% of NaOH and increased below 6% of NaOH. And compressive strength was increased gradually with increasing NaOCl contents. However, NaCl contents of mortars caused a decrease of 28days strength above early strength.
CO<sub>2</sub> 제거용 흡착제를 이용한 스마트 환기시스템 개발 연구
신재란,문성호,김재강,최진식,임윤희,박병현,이주열,Shin, Jae-Ran,Moon, Sung-Ho,Kim, Jae-Kang,Choi, Jin-Sik,Lim, Yun-Hui,Park, Byung-Hyun,Lee, Ju-Yeol 한국응용과학기술학회 2015 한국응용과학기술학회지 Vol.32 No.3
In this study, We evaluated the efficiency of the smart ventilation system being developed at the test-bed(KCL). Smart ventilation system improve the indoor air quality by absorbing carbon dioxide. It is reducing the infusion of outside air can be reduced to minimum energy consumption. To evaluate the energy savings and carbon dioxide removal efficiency. It was more effective when working with air conditioning and ventilation system at the same time.
산업부산물의 Ca 성분 용출 특성 및 액상탄산화 반응을 이용한 침강성 탄산칼슘 제조에 관한 실험적 연구
임윤희,이주열,신재란,최창식,홍범의,강호종,박병현,Lim, Yun-Hui,Lee, Ju-Yeol,Shin, Jae-Ran,Choi, Chang-Sik,Hong, Bum-Ui,Kang, Ho Jong,Park, Byung Hyun 한국응용과학기술학회 2015 한국응용과학기술학회지 Vol.32 No.1
본 연구에서는 이산화탄소 고정화에 있어 이산화탄소 전환을 위해 MEA를 이용한 습식화학흡수법의 셔틀메카니즘을 도입하였다. 또한 알칼리 무기물질을 다량 함유한 산업부산물을 습식탄산화법을 이용해 처리하고자 하였다. 즉, 산업부산물의 화학적 처리를 통해 칼슘이온을 용출하였다. 산성물질을 이용한 용출상징수를 ICP로 분석한 결과, 칼슘이온이 최대 17,900 ppm(1.79%)을 확보하였다. 또한 MEA를 이용한 습식 흡수공정을 통해 상온, 상압조건의 이산화탄소 분위기에서 94%의 전환률을 얻었다. 슬러지의 액상탄산화를 통해 슬러지 mg 당 0.175 mg의 이산화탄소를 고정하였으며, 최종생성물의 XRD 분석결과 일반적인 탄산칼슘의 결정구조인 calcite 형상을 확인하였다. The present study utilized a shuttle mechanism of wet chemical absorption using MEA. In addition, industrial by-products containing a large amount of inorganic alkali substances were utilized for wet carbonization process. Chemical pretreatment of industrial by-products extracted calcium ions. ICP result of calcium ion was obtained up to 17,900 ppm(17.9%) by acidic substance. And also, In this work, 94% of recovery rate was obtained using wet MEA absorption process from $CO_2$ flow at the ambient condition. Through the liquid carbonation process, a sludge was fixed with rate of 0.175 mg of $CO_2$ per mg of sludge. It was found from XRD results that the structure of final product was composed of a calcite structure which is general structure of $CaCO_3$.
김요섭,이주열,임윤희,신재란,박병현,김윤신,Kim, Yo-Seop,Lee, Ju-Yeol,Lim, Yun-Hui,Shin, Jae-Ran,Park, Byung-Hyun,Kim, Yoon-Shin 한국응용과학기술학회 2014 한국응용과학기술학회지 Vol.31 No.3
In order to minimize a building energy consumption with ventilation, a development of smart ventilation system is very important. In this study, a dry adsorbent that is main element of smart ventilation system was developed for removing indoor $CO_2$, and evaluate the adsorption performance. Specific surface area, pore characteristic and crystal structure of the modified sorbent was measured to analyze physical properties. From this analysis, it was found that the developed absorbent has a low specific surface area, due to mesopores of substrate was filled with metal contained raw material. Additionally, through analysis of the adsorption properties, the developed adsorbent was shown a adsorption form of mesopore (type IV), which means adsorption amount was rapidly increased at the part of high-pressure. Order to applying for the field, chamber test was performed. Continuous column tests (2,500 ppm) and batch chamber tests ($4m^3$, 5,000 ppm) showed $CO_2$ removal efficiency of 95% and 88% within 1 hour, respectively.
CO2 직접 제거를 통한 다중이용시설의 에너지 절감 및 경제적 효과에 대한 실험적 연구
김요섭(Yo Seop Kim),이주열(Ju-Yeol Lee),최진식(Jin Sik Choi),신재란(Jae Ran Shin),임윤희(Yun Hui Lim),박병현(Byung Hyun Park),김윤신(Yoon-Shin Kim) 한국유화학회 2014 한국응용과학기술학회지 Vol.31 No.3
It is important to develop the smart ventilation system in order to minimize a building energy consumption using ventilation. In this study, We evaluated the efficiency of the smart ventilation system being developed at the nursery. To evaluate the energy savings and carbon dioxide removal efficiency, two kinds of experimental conditions were compared. First, air conditioner and Smart HVAC system were operated. Second, air conditioner was operating and external air was put into the inside by rate of air circulation. It was more effective when working with air conditioning and ventilation system at the same time. If the Smart HVAC system is applied in a multi-use facility, indoor air quality will be comfortable and the social cost will be reduced.
임윤희(Yun Hui Lim),이주열(Ju-Yeol Lee),신재란(Jae-Ran Shin),최진식(Jin-Sik Choi),박병현(Byung Hyun Park) 한국유화학회 2014 한국응용과학기술학회지 Vol.31 No.4
This study was performed to obtain high conversion efficiency of C7H8 using non-thermal plasma and metal-supported catalyst. Adsorption-desorption characteristics of toluene was performed using 4A type (Zeolite) filled in a concentration reactor. Through this test, it was found that the concentration reactor has 0.020 g/g of adsorption capacity (at ambient temperature and pressure) and 3,600 ppm of desorption property at 150 oC (with in 20 min). In case of developed catalyst, toluene decomposition rate of Pd-AO (Pd coated catalyst) was better than Pd/Cu-AO and Pd/Ag-AO (Pd/Ag composite metal catalyst). Developed non-thermal plasma system was obtained flame amplification effect using injection process of desorbed tolune, and 98% of removal efficiency.
권영란․이재신 충북대학교 교육개발연구소 2012 한국교육논총 Vol.33 No.2
본 연구의 목적은 초등학생 고학년(5, 6학년)의 정서조절능력과 학습몰입과의 관계를 검증하여 학생들의 학습몰입 및 학업 전반에 걸친 적응을 돕고, 더 나아가 초등학생 고학년들이 궁극적으로 가정과 학교에서 정서적으로, 학업적으로 적응적인 생활을 할 수 있도록 시사점을 얻고자 하는 데 있다. 이를 위하여 청주지역 S초등학교 5, 6학년 학생 398명을 연구대상으로 정서조절능력, 학습몰입의 정도를 조사하였다. 연구결과를 분석하기 위해 SPSS 18.0 통계 프로그램을 사용하였다. 본 연구에서 얻은 주된 연구 결과는 다음과 같다. 첫째, 초등학생의 정서조절능력과 학습몰입은 성별에 따라 통계적으로 유의미한 차이를 보이지 않았다. 둘째, 초등학생의 정서조절능력은 학습몰입의 61.8%를 설명하고 있는 것으로 나타났다. 정서조절 능력의 하위요인별로 살펴보면, 자기정서이용(β=.497, p<.001)이 학습몰입에 가장 큰 영향을 미치는 것으로 나타났으며, 다음으로는 타인정서인식 및 또래관계(β=.260, p<.001), 교사와의 관계(β=.173, p<.001) 순이었다. 감정조절 및 충동억제와 자기정서인식 및 표현의 영향력은 통계적으로 유의하지 않았다. 그리고 정서조절능력의 하위요인 중 자기정서이용이 학습몰입에 미치는 영향이 가장 컸다. 정서조절능력과 조금 더 높은 상관관계를 보인 학습몰입의 하위요인은 인지적 몰입(r=.777, p<.01)이었으며, 설명력에 있어서도 인지적 몰입(62.9%)이 정의적 몰입(57.7%)보다 높은 설명력을 보였다.