Comparison of hydro-pneumatic accumulator’s charging performance under different thermal process for dual hybrid driveline

Wasbari, Faizil; Bakar, Rosli Abu; Gan, L. M.; Yusof, Ahmad Anas; Daud, Nazri Md; Ali, Thiziri Ben

doi:10.1088/1757-899x/257/1/012016

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…the gas compression and expansion. Puddu and Paderi, [6], and Wasbari et al [14] studied the divergences of the thermodynamic parameters of real and ideal gases to find their impact on the compression and expansion of working gas, thus influencing the storage volume of hydraulic accumulator. Zhang et al [15] demonstrated the applicability of the Soave-Redlich-Kwong adiabatic equation for gas-charged hydraulic accumulators.…”

Section: Introductionmentioning

confidence: 99%

Experimental Regulating Parameters of Bladder-Type Hydraulic Accumulator

Zhuk

Verbovskyi

Popadiuk

2022

International Journal of Applied Mechanics and Engineering

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Experimental regulating parameters of the non-stationary expansion of air inside a bladder-type hydraulic accumulator, working with the simple short pipeline, are presented in the paper. The technique of continuous online monitoring of changes in time of volume and absolute air pressure inside the hydraulic accumulator during the discharge process has been improved. Three series of experimental studies of transient gas processes inside the accumulator at different values of the average volume flow rate are made. Tendencies of change of the integral parameters of the hydraulic accumulator are obtained and analyzed depending on the serial number of the discharge cycle. A general dependence of dimensionless storage volume Kreg on the polytropic index n in series # 1–3, approximated by single power-law dependence, is obtained. The systematic changes of integral parameters in each subsequent discharge cycle can be explained by the non-stationary transient thermodynamic processes in air inside the accumulator until the thermodynamic equilibrium with the ambient air parameters is reached.

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Section: Introductionmentioning

confidence: 99%

Experimental Regulating Parameters of Bladder-Type Hydraulic Accumulator

Zhuk

Verbovskyi

Popadiuk

2022

International Journal of Applied Mechanics and Engineering

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“…The use of hydraulic accumulators significantly decreases the frequency of pump switches, increasing its service period. Hydraulic accumulators are used in various fields of the engineering: in water supply and other pressure pipelines (Zhuk et al, 2016;Shi et al, 2019), hydro drive systems (Puddu & Paderi, 2013;Kumar et al, 2017;Bravo et al, 2018;Wu et al, 2019), energy engineering (Morozov et al, 2017), etc.…”

Section: Introductionmentioning

confidence: 99%

“…The main factors influencing the regulating parameters of such hydraulic accumulator are thermodynamic processes occurring during the gas compression and expansion. Puddu &Paderi, 2013, andWasbari et al, 2017, have analyzed the differences between the thermodynamic behaviour of real and ideal gases to determine their effect on the compression and expansion gas processes inside hydraulic accumulators, which has an impact on accumulator's storage volume. Zhang et al, 2018, have demonstrated suitability of the Soave-Redlich-Kwong adiabatic equation for gas-loaded accumulator.…”

Section: Introductionmentioning

confidence: 99%

Experimental Integral Regulating Parameters of a Bladder-Type Hydraulic Accumulator

Zhuk¹,

Verbovskyi²,

Popadiuk³

et al. 2020

Theory build. pract.

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Main factors influencing the regulating parameters of gas-charged hydraulic accumulators are thermodynamic processes occurring during the gas compression and expansion. Method of experimental determination of the polytropic index of gas processes in the hydraulic accumulator is improved. An experimental setup was installed for the investigation of integral regulating parameters of the bladder-type hydraulic accumulator. The parameters of non-stationary expansion of the air in the accumulator's shell during its operation with a simple short pipeline are experimentally investigated and analyzed. Polytropic index was regularly decreasing in the cycles #1 to #4 from 2.07 to 1.95. Storage volume of hydraulic accumulator, at the same time, increased on 6.0 % while discharge time decreased on 3.6 %. Obtained experimental trends are explained by the transient thermodynamic processes in the gas inside the hydraulic accumulator before the dynamic equilibrium with the external environment is established.

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Comparison of hydro-pneumatic accumulator’s charging performance under different thermal process for dual hybrid driveline

Cited by 2 publications

References 7 publications

Experimental Regulating Parameters of Bladder-Type Hydraulic Accumulator

Experimental Regulating Parameters of Bladder-Type Hydraulic Accumulator

Experimental Integral Regulating Parameters of a Bladder-Type Hydraulic Accumulator

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