Comparative Analysis of Results of Experimental Studies of Piston Hybrid Energy-Generating Machine with Smooth and Stepped Slot Seals

Shcherba, V. Е.; Шалай, В. В.; Nosov, E. Yu.; Kondyurin, A. Yu.; Nesterenko, G. A.; Tegzhanov, A. S.; Bazhenov, A. M.

doi:10.1007/s10556-018-0508-x

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…When using a smooth gap seal, the flow rate of the fluid in the forward and reverse direction is the same. In accordance with the previously performed researches [16,17], the PHPM can operate in three modes, with the main mode being the priority flow of fluid from the pump fluid to the compressor. In this case, the piston seals must have different hydraulic resistance in the forward and return directions.…”

Section: Analysis Of the Main Types Of Piston Seals Used In Phpmmentioning

confidence: 53%

Calculation of the Incompressible Viscous Fluid Flow in Piston Seals of Piston Hybrid Power Machines

et al. 2020

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The article considers the calculation of the flow of a viscous incompressible fluid in piston seals of piston hybrid power machines. The most widely used and effective seals are considered: a smooth gap seal and a step-type gap seal, and—based on the references analyses—the initial boundary conditions for their calculation are determined. The laminar and turbulent flows in gap seals are calculated based on the well-known analytical relationships, experimental studies and flow models, including the k-ε, Menter’s Shear StressTransport (SST) and Reynolds Stress (RSM) turbulence models. The effectiveness of using each model to determine average velocities, flow rates, and velocity plots in the cross section of a gap seal, as well as the adequacy of the description of known physical laws, is estimated. The results proved that the RSM turbulence model is better for the gap seals of different types under different modes of motion.

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Section: Analysis Of the Main Types Of Piston Seals Used In Phpmmentioning

confidence: 53%

Calculation of the Incompressible Viscous Fluid Flow in Piston Seals of Piston Hybrid Power Machines

et al. 2020

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“…1, а и б. Здесь М КП -масса клапанной плиты (КП); М п -масса поршня; М ц -масса цилиндра; М к.кц -масса корпуса крейцкопфа со штоком; М кц -масса крейцкопфа; М ш -масса шатуна; М кр -масса крышки; М в.ц и М н.ц -массы нижнего и верхнего цилиндров. Результаты исследования спроектированной и изготовленной крейцкопфной ПГЭМОД с гладким и ступенчатым щелевыми уплотнениями изложены в работах [9,10]. Принципиальная схема бескрейцкопфной ПГЭМОД защищена патентом на изобретение [11].…”

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Comparative Analysis of Mass-Dimensional A Comparative Analysis of Mass-Dimensional Indicators of Crossheadless and Crosshead Piston Hybrid Energy Positive Displacement Machines

et al. 2019

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Currently, one of the main ways to improve the efficiency of piston compressors and volumetric pumps is to combine them into a single unit, called a piston hybrid energy machine. Recently, a new class of crossheadless piston hybrid energy positive displacement machines has appeared. In this work, a comparison of mass-dimensional indicators of experimental crosshead and crossheadless hybrid energy machines is performed. The analysis of the results shows that the crossheadless machine has significantly smaller masses of moving parts performing reciprocating motion (almost 3 times) and a smaller maximal overall size (almost 1.5 times) in comparison to the crosshead machine. The specific mass-dimensional indicators of the two machines are comparable.

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Thermodynamic Foundations of Working Processes in Positive-Displacement Machines Designed for Compression of Two-Phase, Two-Component Working Fluids

2019

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Comparative Analysis of Results of Experimental Studies of Piston Hybrid Energy-Generating Machine with Smooth and Stepped Slot Seals

Cited by 7 publications

References 2 publications

Calculation of the Incompressible Viscous Fluid Flow in Piston Seals of Piston Hybrid Power Machines

Calculation of the Incompressible Viscous Fluid Flow in Piston Seals of Piston Hybrid Power Machines

Comparative Analysis of Mass-Dimensional A Comparative Analysis of Mass-Dimensional Indicators of Crossheadless and Crosshead Piston Hybrid Energy Positive Displacement Machines

Thermodynamic Foundations of Working Processes in Positive-Displacement Machines Designed for Compression of Two-Phase, Two-Component Working Fluids

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