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The diesel engine is the main power source for most agricultural vehicles. The control of diesel engine emissions is an important global issue. Fuel injection control systems directly affect fuel efficiency and emissions of diesel engines. Deterioration faults, such as rack deformation, solenoid valve failure, and rack-travel sensor malfunction, are possibly in the fuel …
To alleviate the Eddy effect of the high-speed solenoid valve (HSV) and improve its dynamic response speed, a novel HSV with a composite iron core is presented. The time-step finite element method is used to establish and verify the numerical simulation of HSV coupling multiple physical fields. Then, the Eddy effect and dynamic response characteristics of the …
The needle valve is a critical control unit for high-pressure hydrogen systems such as hydrogen refueling stations, which is the infrastructure of hydrogen energy.As an important part of the needle valve, the valve spool affects the flow characteristics of hydrogen in the valve and then affects the working performance and safety of the high-pressure hydrogen …
Earlier, single-stage pressure reducing valves were used to control hydrogen pressure [10]. For instance, the single-stage needle valve [11], the solenoid valve [12], the check valve [13], the self-acting valve [14] and etc. have been used in high-pressure hydrogen systems such as hydrogen refueling stations, hydrogen fuel cell vehicles, and etc.
To explore the noise problem of the solenoid valve in the pressurized water-air system of a pumped storage power station when operating under the discharge condition, a full-channel unsteady ...
2 Business Models for Energy Storage Services 15 2.1 ship Models Owner 15 2.1.1d-Party Ownership Thir 15 2.1.2utright Purchase and Full Ownership O 16 2.1.3 Electric Cooperative Approach to Energy Storage Procurement 16 2.2actors Affecting the Viability of BESS Projects F 17 2.3inancial and Economic Analysis F 18 ...
The diesel engine is the main power source for most agricultural vehicles. The control of diesel engine emissions is an important global issue. Fuel injection control systems directly affect fuel efficiency and emissions of diesel …
With precise control over the fuel input and water output, three-way solenoid valves help optimize the fuel cell system''s performance. The efficiency and longevity of the fuel cells are …
The electrical power and energy consumed by the current through the solenoid valve can be simplified as [15]: (18) where is the power in watts [W]; is the coil current; is the energy consumption ...
The leakage in the solenoid valve was mainly caused by the clearance between the plunger and the casing of the valve at the end of the valve operation, due to the delay of valve time response and ...
A high-speed solenoid valve is a key component of the braking system. Accurately predicting the failure type of the solenoid valve is an important guarantee for safe operation of the braking system. However, electrical, magnetic, and mechanical coupling aging mechanism; individual differences; and uncertainty of aging processes have remained major …
This paper will focus on incorporating the eddy current effect in the models and their effect on performance, as well as control methods to improve the performance and minimize energy consumption. The performance of a classical reluctance actuator (Fig. 1a) is compared to a PM-biased topology (Fig. 1b) which reduces the energy consumption.
The dynamic characteristics and energy loss in a shifting control system is important and necessary in the performance improvement of an automatic transmission. The direct operating solenoid valve has been considered as a potential component applying in the shifting control system in vehicle. The previous method can solve only a specific physical field or use the test …
Green energy vehicle technologies such as hydrogen-fuelled automobiles are progressing rapidly towards decarbonisation. A significant challenge in hydrogen automobiles is the storage method and safety, particularly during fast filling, including the aerodynamic noise of high-pressure systems in pressure reducer systems. In this study, a hydrogen tank solenoid (HTS) system is …
The focus of this study is the pilot valve inside the solenoid valve of the HTS system, and the geometry of the fluid domain and mesh structure are illustrated in Figs. 2 (a–b). The 3D design of the fluid domain comprises three main regions: the central inlet passage, throat (pilot valve), and outlet passages.
An on-demand droplet generator is developed based on a high-speed and 2-way solenoid valve and studied experimentally in this paper. It is found that the valve-based droplet generator has good ...
of pneumatic solenoid valves provides a reference for the design and improvement of solenoid valves. In view of the above, the study on response characteristics of pneumatic solenoid valves is carried out to analyze their intrinsic relationship. Mutschler et al.2 established a full model description by the computational fluid dynamics (CFD) method
This paper analyzes the unique nonlinear characteristics of a high-speed drive circuit for proportional solenoid, i.e., the inverse discharging drive circuit (IDDC), which has a faster discharging ...
Direct acting solenoid on–off valves are key fluid power components whose efficiency is dependent upon the state of the spool''s axial motion. By sensing the trajectory of the valve spool, more efficient control schemes can be implemented. Therefore, the goal of this study is to derive an analytical model for spool displacement sensing based on coil inductance. First, …
PWM (Pulse width modulated) solenoid valves possess the advantages of low cost, high flow rate gain, and simple structure. However, the use of a PWM solenoid valve causes both discontinuity and nonlinearity of the flow rate; this results in difficulties of modeling and of control. This paper presents our work on modelling a pneumatic PWM solenoid valve for …
DOI: 10.3390/app10124352 Corpus ID: 225703167; A Performance Improvement Strategy for Solenoid Electromagnetic Actuator in Servo Proportional Valve @article{Wang2020API, title={A Performance Improvement Strategy for Solenoid Electromagnetic Actuator in Servo Proportional Valve}, author={Shijie Wang and Zhidan Weng and Bo Jin}, …
Precept Automation is a distributor of commercial & industrial valve products & accessories. Includes manual & automated valves, fail safe, battery backup, variable control pneumatic and electric rotary actuators, pressure gages & thermometers, pressure relief valves, check valves, solenoid valves, pressure switches & pneumatic accessories ...
This study presents a simulation model, optimization strategy and the experimental validation of a solenoid electromagnetic actuator that is widely used in industry components, especially in pneumatic/hydraulic valves. In the preliminary design, a two-dimensional magnetostatic finite element analysis (FEA) model is proposed and verified by static push-force comparisons …
A solenoid valve is a type of valve that is controlled by an electric current. A coil of wire, also called an electromagnet, is energized to create a magnetic field that moves a plunger. This movement opens or closes the valve, allowing or shutting off the flow of liquids or gases through it.
Research on Kinetic Energy Recovery of Energy Vehicle ABS Solenoid Valve Based on the ELM Deep Learning Model August 2022 Computational Intelligence and Neuroscience 2022(1):1-7
reasonable amount of time. The chosen tests are also based on the results of the multi-physics finite element model of the solenoid valve that is discussed in Part 1 of this work. The tested solenoid valve is a normally open, three-way valve. The operating conditions are given in …
2.1. ELM Model. ELM is a machine learning method developed by Ding et al. [] based on feedforward neural networks.The model contains input, hidden, and output layers. During the training process, it is no need to adjust the initial weights, only the need to set the number of nodes between the hidden layers, and the training can be completed by calculating …
The focus of this study is the pilot valve inside the solenoid valve of the HTS system, and the geometry of the fluid domain and mesh structure are illustrated in Figs. 2 (a–b). The 3D design of the fluid domain comprises three main regions: the central inlet passage, throat (pilot valve), and outlet passages.
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