Results 31 to 40 of about 14,168 (225)

Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration

open access: yesEnergies, 2021
Electrification of transportation is an effective way to tackle climate change. Public transportation, such as electric buses, operate on predetermined routes and offer quiet operation, zero local emissions and high energy efficiency.
Philipp Glücker   +6 more
doaj   +1 more source

Electrical Energy Storage Using Flywheels [PDF]

open access: yesMRS Bulletin, 2008
Flywheel energy storage systems use the kinetic energy stored in a rotor; they are often referred to as mechanical batteries. On charging, the fywheel is accelerated, and on power generation, it is slowed. Because the energy stored is proportional to the square of the speed, very high speeds are used, typically 20,000–100,000 revolutions per minute ...
openaire   +1 more source

Development of doubly salient permanent magnet motor flywheelenergy storage for building integrated photovoltaic system [PDF]

open access: yes, 2001
With ever-increasing concerns on environmental protection, the full utilization of inexhaustible solar energy is highly desirable. In this paper, a new energy storage system is proposed which consists of a building integrated photovoltaic (BIPV) array, a
Chau, KT, Cheng, M, Kan, HP
core   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

open access: yesCarbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang   +4 more
wiley   +1 more source

Energy storage apparatus [PDF]

open access: yes, 1978
A high efficiency, flywheel type energy storage device which comprises an electronically commutated d.c. motor/generator unit having a massive flywheel rotor magnetically suspended around a ring shaped stator is presented.
Evans, H. E., Studer, P. A.
core   +1 more source

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou   +3 more
wiley   +1 more source

Design and Analysis of a Highly Reliable Permanent Magnet Synchronous Machine for Flywheel Energy Storage

open access: yesMachines
This article aims to propose a highly reliable permanent magnet synchronous machine (PMSM) for flywheel energy-storage systems. Flywheel energy-storage systems are large-capacity energy storage technologies suitable for the short-term storage of ...
Xinjian Jiang   +3 more
doaj   +1 more source

Investigation of stress-strain state in the flywheel and estimation their specific energy capacity

open access: yesMATEC Web of Conferences, 2017
In this paper, the specific energy intensity of the kinetic energy storage devices, including the flywheel-casing scheme in the potential field, is investigated.
Berezhnoi Dmitri V.   +2 more
doaj   +1 more source

Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper explores global solar PV deployment, cost trends, and grid integration challenges in 2025. It examines the role of energy storage in firming solar output and supporting electric vehicle (EV) growth, alongside policy shifts, investment flows, and technological innovations.
Ehsan Rezaee, S. Ravi P. Silva
wiley   +1 more source

Hybrid PV System with High Speed Flywheel Energy Storage for Remote Residential Loads

open access: yesClean Technologies, 2021
Due to low system inertia in microgrids, frequencies may vary rapidly from the nominal value, leading to the complete blackout of the system unless there is an adequate spinning reserve available for balancing the supply with the demand load.
Abid Soomro   +2 more
doaj   +1 more source

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