The Experts below are selected from a list of 90 Experts worldwide ranked by ideXlab platform
A. Kayode Coker - One of the best experts on this subject based on the ideXlab platform.
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Reciprocating Compression Surge Drums
Ludwig's Applied Process Design for Chemical and Petrochemical Plants, 2015Co-Authors: A. Kayode CokerAbstract:Proper performance of a reciprocating compressor cylinder depends upon the required quantity and condition of gas being available at the Suction Flange of the cylinder. The design of reciprocating compressor systems is a complex topic, and many installations fail to perform satisfactorily, as evidenced by excessive horsepower consumption and overall adjacent system piping vibration, due to inadequate pipe sizes, gas pulsations and/or gas surge volumes. Conventional pipe sizing does not recognize the significant changes in gas flow rate that take place as compressor piston moves from head end to crank end or vice versa.
Marcin Janczak - One of the best experts on this subject based on the ideXlab platform.
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Analysis of the reasons of double Suction centrifugal pump’s failure
Mechanik, 2017Co-Authors: Witold Lorenz, Marcin JanczakAbstract:The issue of a pump operation beyond its recommended range and required flow conditions to the Suction Flange and consequently failure of double Suction axially split centrifugal pump was explained. The increased vibration level, improper configuration of the Suction pipeline and used hydraulics were presented. It was also illustrated how to diagnose and solve a problem which after implementation at the target workplace has confirmed the correctness of implemented design solutions.
Uptigrove Stan - One of the best experts on this subject based on the ideXlab platform.
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Measured Effects Of Liquid Distribution On Compressor Performance During Wet Gas Ingestion
'Biophysical Society of Japan', 2015Co-Authors: Musgrove Grant, Beck Griffin, Matheidas Michael, Uptigrove StanAbstract:LectureUpstream production of natural gas is commonly a mixture of both liquid and gas hydrocarbons that is separated before boosting the gas or liquid flows to higher pressure for transport. The gas-liquid mixture is known to affect the compressor performance, but it is not known if the distribution of the liquid entering the compressor affects the maximum amount of liquid that the compressor can safely ingest. The work presented in this paper determines if liquid atomization affects the compressor operation or influences the amount of liquid that can be safely ingested by the compressor, compared to non-atomized liquid. To determine the effect of atomization on compressor performance, three injection methods are used to characterize the performance for atomized and non-atomized flow. Non-atomized flow is generated by injecting liquid far upstream of the compressor to allow a natural two-phase flow regime to develop before entering the compressor. Atomized flow is generated near the compressor Suction Flange using liquid pressure to generate large droplets on the order of 2,000 m and gas-assisted atomization to generate droplets at least an order of magnitude less than the large droplets (100 m). Results of the work are reported in this paper to include compressor performance measurements for two rotation speeds and a range of liquid and gas flow rates. In addition, the control of the compressor during wet gas ingestion is demonstrated through movement of the compressor on the flow map. Finally, high-speed flow images of the liquid entering the compressor are qualitatively shown to illustrate the difference in injection method
Jianmei Feng - One of the best experts on this subject based on the ideXlab platform.
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Experimental study on performance of BOG compressor
IOP Conference Series: Materials Science and Engineering, 2015Co-Authors: Bin Zhao, Tao Wang, Xueyuan Peng, Jianmei FengAbstract:The boil-off gas (BOG) compressor is widely used for recycling the excessive boil-off gas of liquefied natural gas (LNG), and the extra-low Suction temperature brings about great challenges to design of the BOG compressor. In this paper, a test system was built to examine the effects of low Suction temperature on the compressor performance, in which the lowest temperature reached -178°C by means of a plate-fin heat exchanger with liquefied nitrogen. The test results showed that, as the Suction temperature decreased from 20°C to -150°C, the volumetric efficiency of the compressor dropped by 37.0%, and the power consumption decreased by 10.0%. The preheat of the gas by the pipe through the Suction Flange to Suction valve was larger than 20°C as the Suction temperature was -150°C, and this value increased with the decreased Suction temperature. The pressure loss through the Suction valve at lower Suction temperature was larger than that at ambient temperature while the volume flow rate was kept the same.
Li Zhon - One of the best experts on this subject based on the ideXlab platform.
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Computational Modal Analysis of Tilt Volute in a Centrifugal Pump
Fluid Machinery, 2013Co-Authors: Li ZhonAbstract:Modal analysis of tilt volute with special structure in a centrifugal pump was carried out by finite element analysis software ANSYS. The first 6 order natural frequency and modal shape of tilt volute in prestressed and none prestressed state was obtained respectively. The results show that each order natural frequency of tilt volute far away from main exciting frequency,it is beneficial to avoid the occurrence of resonance effectively. The primary deformation is located in Suction Flange and diffuser of volute and their rigidity should be increased to optimize the vibration characteristic. The value of each order natural frequency of tilt volute will raise about 1% in prestressed state than which in none prestressed state and the primary deformation in this two state is essentially consistent. The analysis results will provide theoretical basis for safety operation and structural optimization of centrifugal pump with tilt volute.
