The primary purpose of this paper is to investigate energy regeneration and conversion technologies based on mechanical–electric–hydraulic hybrid energy storage systems in vehicles. There has been renewed interest in hydraulic storage systems since evidence has been presented that shows that they have the distinct …
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By adopting pneumatic regenerative braking, the energy dissipated during the vehicle brake phase can be recovered and stored as compressed air and converted into mechanical power during vehicle acceleration.
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Section snippets Gas-charged accumulators In the regenerative braking system represented in Fig. 1, the hydraulic accumulators must be able to accept the flow of energy supplied by the hydrostatic pump during deceleration phases of …
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pneumatic car has been built previously, but no information on storage is given in the literature on this car.23 For the pneumatic vehicle, a minimum energy requirement of 7.5 kWh has been determined using data for the GM Impact III, a very efficient electric an
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Small-scale energy storage of pneumatic hydraulic power can also be used in small mechanical devices such as the hydraulic regenerative braking system. When the driver steps on the brake, the vehicle''s kinetic energy is used to power a reversible pump, which can deliver hydraulic fluid from a low pressure accumulator (a kind of storage reservoir) …
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In this paper, the prototype of a new hybrid compressed air-electric vehicle is developed, analyzed, built and tested. The system consists of a novel hybrid electric …
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In order to recover and utilize the potential energy of mining trucks efficiently, this paper proposes a nested optimization method of a novel energy storage system. By analyzing the multi-objective optimization problem of the oil-circulating hydro-pneumatic energy storage system, a nested optimization method based on the advanced adaptive …
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The Pneumatic vehicle is a new technology developed that allows a car to be powered by compressed air. Venkatesh Boddapati [1] says compressed air storage tanks built with carbon fibers will carry high amount of pressure with minimum volume space which obviously meets the requirement with the conventional engines with zero emission.
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When the switch rod rotates over the switch plate, it powers the relay switches and in-turn powers the solenoid valves in phase due to the construction of the plate. As the valves turn On, it transmits the air through its opening to the pneumatic cylinder and actuates the piston. Fig. 3: Wirefram design in CATIA.
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Thanks to recent engineering innovations, it is. The first true pneumatic or "hybrid air" propulsion system, designed specifically for heavy vehicles, is already demonstrating clear advantages over both electric and hydraulic hybrids. The idea of an air-powered vehicle is not new, but the breakthrough that enabled it is fairly recent.
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A novel coupled hydro-pneumatic energy storage system is proposed to improve the energy and power performance of the energy storage system in hybrid mining trucks. Based on four basic layouts, representing different energy conversion and storage approaches, of compressed air energy storage system and hydraulic energy …
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KEYWORDS Driving cycles; Hybrid pneumatic vehicles; brake regenerative energy; Fuel economy ... The results revealed that short-term pneumatic energy storage increased the powertrain''s efficiency by 100% for urban driving. An experimental investigation ...
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Abstract. Hydrogen energy was first used in space rocket engines. As a reference theoretical basis for equipment development of self-contained energy devices, this chapter analyzes the application of aerospace hydrogen energy and ultrahigh pressure pneumatic control technology for fuel cell vehicles, studies the key technical problems of …
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The energy efficiency for the system is found to be 65.0% while the exergy efficiency is 57.0% for a common driving range of 131 km which is considered a kind of acceptable driving range for commercial pneumatic vehicles.
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the hydro‐pneumatic hybrid mining truck with the optimized energy storage system significantly reduces its fuel consumption and CO₂ emission. Thus, it lays the foundation for the practical appli‐ cation of hydro‐pneumatic hybrid mining trucks.
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A pneumatic system is a connection of various components such as (compressors, intercoolers, controllers, and actuators), that converts the pressure energy of compressed air into mechanical …
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DOI: 10.1016/J.ENERGY.2013.04.072 Corpus ID: 97554145 Hydro-pneumatic accumulators for vehicles kinetic energy storage: Influence of gas compressibility and thermal losses on storage capability @article{Puddu2013HydropneumaticAF, title={Hydro ...
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Hydro-pneumatic accumulators for vehicles kinetic energy storage: Influence of gas compressibility and thermal losses on storage capability August 2013 Energy 57:326-335
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Compressed air system with a PCM heat exchanger prototype by Dr. Reza Alizade Evrin from Ontario Tech University. Compressed air system with a PCM heat exchanger prototype diagram A compressed-air vehicle (CAV) is a transport mechanism fueled by tanks of pressurized atmospheric gas and propelled by the release and expansion of the gas …
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Nested Optimization of Oil-Circulating Hydro-Pneumatic Energy Storage System for Hybrid Mining Trucks 2021 - Tong Yi ... Hybrid Model-Based Analysis of Underground Articulated Vehicles Steering Characteristics 2019 - Lulu Gao ...
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In order to increase the driving distance and power–weight ratio after one hydrogenation, fuel cell vehicles of major automobile companies have developed 70 MPa …
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Use of a compressed gas energy storage as a short duration, high power output system for conventional motor vehicles could reduce engine size or reduce transient emissions. For electric vehicles this kind of system could lengthen battery life by providing battery load leveling during accelerations.
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Verified by the bench experiment of its powertrain, the hydro-pneumatic hybrid mining truck with the optimized energy storage system significantly reduces its fuel consumption and CO₂ emission.
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Pneumatic-hydraulic transmission has been developed for years. However, its dynamic properties are not good enough for application. In this paper, in order to increase the output characteristics, a late-model air-powered vehicle using expansion energy is proposed which can boost energy through a pneumatic-hydraulic …
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2. An overview of fundamentals. Even though the goal of an RBS is to recuperate as much kinetic energy as possible during braking processes, it is also crucial for the system to decelerate the vehicle safely and comfortably. Brake safety and stability are major criteria in evaluating RBSs [18], [19], [20].
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This paper numerically models the thermal performance of offshore hydro-pneumatic energy storage (HPES) systems composed of a subsea accumulator pre-charged with a compressed gas. A time-marching numerical approach combining the first law of thermodynamics with heat transfer equations is used to investigate the influence of …
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Electric drive mining trucks, which are of heavy loads and high efficiencies, are widely used for off-road applications such as large-scale open-pit metal mines, co al mines, and water conservancy ...
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Different from the hydraulic hybrid vehicle, the compressed air vehicle is a new type of green vehicle with the advantages of high energy density and low cost. 20 The pressure …
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Instead of using a battery, a hybrid pneumatic vehicle uses a robust and inexpensive air pressure tank for energy storage. The internal combustion engine is able to run in purely pneumatic modes, acting as a pneumatic pump or motor without fuel injection. The resulting concept is called Hybrid Pneumatic Engine (HPE) [5].
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This review will consider the state-of-the art in the storage of mechanical energy for hydraulic systems. It will begin by considering the traditional energy storage device, the hydro-pneumatic ...
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Most related items These are the items that most often cite the same works as this one and are cited by the same works as this one. Zhang, Shuo & Xiong, Rui & Zhang, Chengning & Sun, Fengchun, 2016. "An optimal structure selection and parameter design approach for a dual-motor-driven system used in an electric bus," Energy, Elsevier, vol. 96(C), pages …
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Use of a compressed gas energy storage as a short duration, high power output system for conventional motor vehicles could reduce engine size or reduce …
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