http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
한정옥(J. O. Han),채정민(J. M. Chae),홍성호(S. H. Hong) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
The peak electric load in summer has been annually issued social problem because of the not enough facility capacity. Another way to supply cooling energy is gas cooling system which worked by gas fuel. The absorption chiller and gas engine heat pump have been commercialized for cooling. Even if, the total capacity of gas cooling is much less than that of electric type, gas cooling system is an effective way to decrease electric cooling load. This paper described the way to converting equivalent electric cooling load by the gas cooling energy. And also the status of cooling energy consumption including the ratio of each energy sources were analyzed.
[論文] 모터링 압력측정을 통한 상사점 결정방법에 관한 연구
한정옥(J.O.Han),이영주(Y.J.Lee),김승수(S.S.Kim) 한국자동차공학회 1988 오토저널 Vol.10 No.6
A disk photo sensor system was constructed and installed on engine for the crank angle measurement. Statically measured TOC crank angle data were compared with those obtained from engine motoring.<br/> Two groups of cylinder pressure data were compared each other, one measured by pressure transducer mounted flush on the combustion chamber and the other obtained with the help of spark plug type adaptor. A simple analysis on the gas flow in the spark plug type pressure transducer displayed reasonably good agreement with those from engine motoring tests.<br/> In various firing tests, the IMEPs obtained from the spark plug type pressure transducer turned out to be higher than those from the flush mounted one at low engine speed while those two were nearly the same at high engine speed. As the engine load decreased the relative difference in IMEP measurement between the two types tended to be enlarged.
HCNG용 버너시스템에서 Tail Gas 첨가 시 연소특성
한정옥(J. O Han),이중성(J. S Lee),김형태(H. T Kim),김상민(S. M Kim),이영철(Y. C Lee),김용철(Y. C Kim),홍성호(S. H Hong) 한국연소학회 2015 한국연소학회지 Vol.20 No.2
The combustion characteristics of metal fiber burner fueled natural gas with tail gas produced from reforming process were analyzed on the point of flame stability and excess air conditions. Also, it was analyzed the effect of energy efficiency improvement due to decrease the fuel input in reforming system by using residue gases. As a results, it was confirmed that tail gas including hydrogen, CO and CO2 could be directly injected without any change of air control system in natural gas burner and also energy efficiency was increased up to 30% maintained stable combustion.
이중성(J.S. Lee),김봉규(B.G. Kim),채정민(J.M. Chea),한정옥(J.O. Han),나평철(P.C. Na) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
The government have been tightening EM regulation gradually but the effect is not good because of rapid increase of vehicles. And medium & heavy duty diesel vehicles, even though the number is small, exhaust very large pollutants(about over 50%). Especially it is more severe about old trucks and buses. Accordingly, CNG vehicle and the retrofit of diesel to CNG must be an alternative in order to protect the atmospheric environment and improve the air quality in the metropolitan area. The main object of this study is to secure the retrofit technology of diesel to CNG vehicle and the management system of CNG engine. we passed the government emission certification test. In addition to this, the mass production for retrofit is also studied. Results of emission and durability test for certification are as follows; there was no problem during 30,000㎞ vehicle durability test and good emission levels satisfying the regulation.