A rotor-journal bearing system for a twin rotary compressor has been nlliDerically analyzed to estimate the reliability and to optimize the bearing design. For rotary compressors, large dynamic loads act on the rotor. They are unbalanced forces due to eccentric rotation parts and gas forces induced by the difference in pressure between compression and suction gases. In such a case, the rotor-jo...

Gas target injection system is newly fabricated to observe behaviors of injected fast ignition targets. It can eject a mimic by pressured nitrogen gas and magnetic separator. The flight attitude observed high-speed cameras. Analysis camera images indicates that the velocity increased with pressure up around 100 m/s which meets demanded specification reactor angle varied in wide range shot shot....

Suction accumulator in rotary compressor is an important component from standpoints of compressor cost, performance, sound and ability of controlling excess liquid refrigerant. Because of its importance, it deserves its due attention to enhancement of its functions. This paper first defines functions of an accumulator, lists major design parameters and their common ranges. Then, a couple of maj...

This paper discusses the application of plant-wide control philosophy to enhance the performance and capacity of the Produced Water Treatment (PWT) in offshore oil & gas production processes. Different from most existing facilityor material-based PWT innovation methods, the objective of this work is to propose a software-based breakthrough PWT innovation solution. This is achieved through integ...

Given a plane graph G and two vertices s and t in G, an s-t surface separator is a closed curve C such that s belongs to the other region of R \C than t. A cycle C is called a cyclic surface separator if C is an s-t surface separator, and an odd cyclic surface separator if C is an odd cycle. We consider the problem of finding odd cyclic surface separators in planar graphs and show that the prob...

The non-powered separator is one of the key equipment in dry sand production line, which responsible for separation coarse and fine materials. In this paper, based on turbulence Standard Model, air powder three-phase fluid model simplified to gas-solid-solid flow, 3D was built. process simulated by using Fluent software. It found that larger volume control valve blade angle is, more removed, ca...

Direct non-oxidative methane conversion (DNMC) is one of the most promising options to convert (CH4) in natural gas remote extraction sites liquid aromatics, which easier transport compared CH4 gas. The main constraint DNMC low conversion, and thus aromatics product yield due thermodynamic limitation. This work reports a recycle reactor/hydrogen (H2) membrane separator achieve high by circumven...