Limp materials like textiles, leather, porous tissues, meat and fish fillets do represent challenges in automation. A universal gripping principle that is usable for all these materials is not known. This paper describes a new gripping principle based on a novel Coanda effect ejector meeting these challenges. This ejector allows the construction of a slim, plate-shaped vacuum gripper with multi...

Abstract The 2 m×2 m high-speed free jet test facility is a level intermittent blowdown-ejector ground facility, which has the ability of tri-sonic operation. closed section replaced with large chamber. In development process project, main focus uncertainty influences pressure pulsation action on functional realization step change Ma number by adjusting semi-flexible nozzle profile in wide oper...

Air pollution is one of the major issues about the diesel engines in todays' world. It is a special concern in those areas that have difficulty meeting health-based outdoor air quality standards. Natural gas has low emission and resource abundance and also conventional compression ignition engine can be easily converted to a dual fuel mode to use natural gas as main fuel and diesel as pilot ...

Effective water management is particularly critical for fuel cells fed by hydrogen/oxygen. An ejector an optimal device the gas recirculation subsystem of a proton exchange membrane cell (PEMFC) and usually adopted auxiliary drainage hydrogen/oxygen stacks. To explore performance degradation operating in dual ejector-based mode both anode cathode, dynamic characteristics purging PEMFC was studi...

Nowadays, since the air pollution problem is becoming global and denitrification efficient to control nitrogen oxides, research development of burners with low pollutant emissions in industries are urgent necessary due increasingly severe environmental requirements. Based on advanced CFD (computational fluid dynamics) numerical analysis technique, this work focuses developing an industrial deni...

Fuel gas utilization and water management are particularly challenging integrated engineering problems in hydrogen–oxygen proton exchange membrane fuel cell (H2/O2 PEMFC) systems. Herein, a standardized process is adopted to evaluate the performance investigate degradation mechanisms of PEMFC with dual exhaust recirculation. The purpose incorporating recirculation subsystems achieve high rate r...