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김홍성 한국기계가공학회 2005 한국기계가공학회지 Vol.4 No.1
In this study, A controlled auto-ignition (CAI) single cylinder gasoline engine is considered, focusing on the extension of operating conditions. The fuel is injected indirectly into electrically heated inlet air flow. Investigated are the engine performance characteristics under the wide range of operating conditions such as 32 to 63 in the air-fuel ratio, 1000 to 1800 rpm in the engine speed, and 150 to 180 in the inlet-air temperature. A controlled auto-ignition gasoline engine which has the super ultra lean-burn with self-ignition of gasoline fuel can be achieved by heating inlet air.
정용호(Yong-Ho Jung),장현재(Hyun-Jae Chang),서장후(Jang-Hoo Seo) 대한설비공학회 2013 설비공학 논문집 Vol.25 No.2
In this study, a cold aisle containment system was proposed among various strategies to reduce the energy waste by recirculation air from the hot aisle. To verify the effectiveness of the cold aisle containment system, a test bed which is similar to an actually existing server room was set up in the Internet Data Center(IDC) building. Comparative experiments, conventional open type cooling system and cold aisle containment system were carried out under actual conditions. The result revealed that the range of inlet temperature of the server system was 20~ 25℃ in an existing cooling system and the range of inlet temperature dropped below 20℃ by the cold aisle containment system. After all, cold aisle containment system was proved to be the solution for energy saving cooling system.