A new type of hydrokinetic accumulator and its simulation in hydraulic lift with energy recovery system

被引：33

作者：

Latas, Waldemar ^{[1
]}

Stojek, Jerzy ^{[2
]}

机构：

[1] Cracow Univ Technol, Inst Appl Mech, Al Jana Pawla 2 37, PL-31864 Krakow, Poland

[2] AGH Univ Sci & Technol, Dept Proc Control, Al A Mickiewicza 30, PL-30059 Krakow, Poland

来源：

ENERGY | 2018年 / 153卷

关键词：

Hydrokinetic flywheel-accumulator; Hydraulic energy storage; Energy recovery; Hydraulic hybrid; Variable displacement pump/motor; Hydraulic lift; POWER MANAGEMENT; OPTIMIZATION; STORAGE; DESIGN; TRUCK;

D O I：

10.1016/j.energy.2018.04.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The article presents a model and a simulation study of a new type of hydrokinetic accumulator with increased energy storage density. The basic elements of the accumulator are: a flywheel of variable moment of inertia (due to inflow or outflow of hydraulic fluid) and a variable displacement pump/motor. The first part of the article describes the construction and operation principles of the developed accumulator with three specified work modes. A mathematical model of the presented hydrokinetic accumulator and its simulation in a hydrostatic lift system with energy recovery are given. The results of the numerical simulations carried out during charging and discharging of the accumulator (i.e. values of the stored kinetic and potential energy and chosen working parameters) are presented. It is shown that, due to energy storage and extraction, in both hydrostatic and rotating kinetic domains, charging and discharging may be decoupled from pressure level. Additionally, the accumulator has the ability to control the pressure in the hydraulic system. An example of the control algorithm is also presented in the paper. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：836 / 848

页数：13

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