High-pressure direct injection diesel/methanol dual-fuel engines exhibit excellent emission reduction potential, but they are still in the initial stage of research and development. The influences different methanol locations, duration, pressures on combustion characteristics, mixture homogeneity, exhaust emissions investigated to explore appropriate strategies further optimize engine performan...

A 2.0T gasoline engine was modified to a dual-injection engine. Numerical simulation method is used study the influence of fuel type and injection strategy on in-cylinder mixture formation process, combustion process soot emission The results show that an appropriate increase in intake port ratio can improve uniformity air-fuel mixture. Increasing system, proportion directly injected into cylin...

Cloud promises users that they can present and deploy IT services in a pay-as-you-go fashion in an open and virtualized cloud environment while saving huge capital investment in their own IT infrastructure. In this sense, protection of users’ privacy is critical and has become one of the most concerned issues as otherwise users may eventually lose the confidence and passion of deploying cloud i...

Recently, the high-pressure fuel injection performance of common-rail direct injection (CRDi) engines has become more important, due to the need to improve the multi-injection strategy. A multiple injection strategy provides better emission and fuel economy characteristics than a normal single injection scheme. The CRDi engine performance changes with the type of high-pressure electro-mechanica...

In this paper a comprehensive approach is presented to improve power swings damping based on direct Lyapunov method. The approach combines superconducting magnetic energy storage (SMES) system with static synchronous compensator (STATCOM). Considering the energy absorption/injection ability of SMES, in transient states the combination exchanges both active and reactive powers with power system....