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Pipeline Integrity Management Systems: A Practical Approach

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[PDF] Pipeline Pumping and Compression Systems: A Practical Approach - Semantic Scholar

August Cited by. Related Articles. Paper Title Pages. Abstract: Compared to conventional compressors, the linear compressor with a free piston can improve efficiency and save energy, but the displacement varies due to different load conditions, which seriously influences its performance. In this paper, based on the theoretical analysis, a self-sensing control system with a SPWM inverter and a PC software interface for a moving-magnet linear compressor is developed, and the displacement of the linear compressor which is under control is tested.

The result shows the error of the control system is under 0.

How a Compressor Station Works

Abstract: According to the working principle of reciprocating compressor valves, combined with the actual operation, analyze the reliability of the compressor valves and valve failure phenomenon, and raise ways to improve the reliability of the valve. Abstract: The main duty of this paper is dynamic performance research of reciprocating compressor value. By theoretical analysis, obtaining the movement rules curves of value plate and analyzing selection principle of value characteristics parameters; By mathematical simulation, expounding initial conditions and boundary conditions.

Pipeline Pumping and Compression Systems: A Practical Approach, Third Edition

Abstract: The semi-hermetic reciprocating compressor is the dominant noise source of food refrigeration unit. The simulation results show that the low-frequency noise radiation near the end of the piston-cylinder is directional and stronger than that of the other side, which offers a valuable reference for noise reduction. In addition, the sound pressure dB curve of any field point can be obtained through the numerical simulation, and it clearly shows that sound pressure values away from the piston end are significantly lower than those at the piston side; and noise radiation energy of compressor concentrates at Hz and Hz. Abstract: In this paper, by designing a new type of mechanism, the time-varying cylinder load ofthe reciprocating compressor is simulated.

The time-varying cylinder pressure load includes fourprocesses of expansion, suction, compression and exhaust, where the pressure of the expansionprocess is gradually reduced until it is equal to the suction pressure, and the pressures of the suctionand exhaust processes are almost constant. The pressure of the compression process is graduallyincreased until it is equal to the exhaust pressure value. Through the motion simulation of themechanism, four processes of time-varying cylinder pressure load can be realized.