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CaO를 이용한 보일러 배가스의 반건식 중온 FGD에 관한 연구
류정인(J. I. Ryu),송완중(W. J. Song),이재성(J. S. Lee),이병오(B. O. Lee) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.9
By the sudden increase of using a boiler, environmental problem is now becoming a international issue and so our government intensify the environmental rules. Now, we must prepare the change of international circumstance and develop a emission control technique for improvement of our atmosphere quality. in this study, we make a 800ppm SO₂ gas which is exusted by real boiler, and execute a series of FGD tests. As a result of this study it is concluded that an optimum desulfurization ratio depend on such as humidity, temperaure and flow quantity.
超音波 燃料霧化 裝置를 使用한 기솔린 氣化器 自動車의 性能向上에 관한 硏究
설진호(J.H.Seol),강홍규(H.G.Kang),이홍영(H.Y.Lee),양정규(J.G.Yang),류정인(J.I.Ryu) 한국자동차공학회 1992 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1992 No.11
This paper describes briefly the effect of ultrasonic fuel atomization device on the performance of four stroke gasoline engine. Experiments were carried out to clarify the effect of this device on the performance factors(engine output, travelling fuel consumption, exhaust emissions). By attaching the device to the conventional intake manifold of the gasoline engine, all the performance factors were improved.
[論文] 충격파관을 이용한 분무연료의 착화지연에 관한연구
정진도(J. D. Chung),류정인(J. I. Ryu),수곡행부(Mizutani Yukio) 한국자동차공학회 1989 오토저널 Vol.11 No.6
A shock tube technique was developed in which a freely falling droplets column produced by an ultrasonic atomizer was ignited behind reflected shock.<br/> In the present study, the effects of turbulent mixing on the ignition delay of a cetane was decided, also, ignition process was investigated. For the purpose of disturbance of droplets column and mixing, authors installed turbulent lattice in shock tube.<br/> Usually, the ignition delay is so called Arrhenius plot which found break point in the Arrhenius plot on the high temperature side. The rate of misfiring increased rapidly below lO80K, but ignition took place from 838k and luminous flame was seen to spread over the whole section by turbulent lattice.<br/> Length, from end plate to turbulent lattice, was varied with 60,40,20mm.<br/> Also, ignition process was detected by Photo transistor. As a result, it was found that physical factors changed ignition delay greatly and turbulent mixing had a considerable effects in the ignition process.
소형디젤기관의 연소실 내에서의 공기 유동이 기관성능에 미치는 영향(1) -관로 공기유통의 난류특성-
양정규(J.K.Yang),조성철(S.C.Cho),윤진한(J.H.Yun),류정인(J.I.Ryu) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1994 No.11_1
The purpose of this study investigated on the engine performance in the combustion chamber of air flow and swirler to swirl effect in the combustion chamber. Swirl angle and pressure variation in air flow characteristics with a tube was measured by using Paddle Wheel and Manometer, and turbulence intensity was measured by Hot Wire Anemometer.<br/> The results are as followed :<br/> 1. Vacuum degree increased in proportion to the intake air velocity and the angle of swirler<br/> 2. The magnitude of vacuum degree had a periodic characteristics produced maximum value every specified length at the mounting place of the swirler<br/> 3. Strong swirl was uniform regardless of flow velocity as the angle of swirler is at more than 45°<br/>
소음기내의 배압 감소를 이용한 기관 성능 향상에 관한 실험 연구
최정원(J. W. Choi),조성철(S. C. Cho),류정인(J. I. Ryu) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_2
The purpose of this study is to improve engine performance and fuel economy by reducing back-pressure in a muffler. Back-pressure affecting engine performance is the important considering aspect for muffler design.<br/> First, we did a model experiment by using a venturi tube around the tailpipe of muffler(After this, venturi muffler) and found the most effective conditions. And then we performed the engine dynamometer test and the chassis dynamometer test. As the results of these works, we found the positive effects of venturi muffler and knew that it could improve engine performance and fuel economy<br/>