The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Yulong Ding - One of the best experts on this subject based on the ideXlab platform.

  • an economic feasibility assessment of decoupled Energy Storage in the uk with liquid air Energy Storage as a case study
    Applied Energy, 2018
    Co-Authors: Chunping Xie, Yulong Ding, Yan Hong, Jonathan Radcliffe
    Abstract:

    Abstract This work assesses the economic feasibility of adopting decoupled Energy Storage technologies in the UK, using a methodology to optimize the size of individual components for charging, storing and discharging Energy. Such technologies, including pumped hydro and compressed air Energy Storage, are likely to become more important in the future Energy system. In this paper we consider liquid air Energy Storage as a case study - a technology that has the potential to provide multiple balancing and ancillary services to the electricity grid, as well as to obtain revenues through Energy price arbitrage. Based on the UK’s half-hourly electricity spot price in 2015, the developed numeric model calculates the revenue streams of a liquid air Energy Storage system from providing reserve service and arbitrage every half hour. Results from the genetic algorithm give the optimal sizes for the liquefaction, Storage and recovery units, to maximize the net present value and allow us to calculate other economic objectives. Our model results suggest that the profitability of a liquid air Energy Storage system can be improved by either introducing waste heat into the system or increasing system scale. The payback period could vary from 25.7 years to 5.6 years for a 200 MW system, with the use of waste heat ranging from 0 °C to 250 °C.

  • cryogenic Energy Storage
    Handbook of Clean Energy Systems, 2015
    Co-Authors: Yulong Ding, Dacheng Li, Jonathan Radcliffe, Yongliang Li, Yun Huang
    Abstract:

    Cryogenic Energy Storage (CES) is a large-scale Energy Storage technology that uses cryogen (liquid air/nitrogen) as a medium and also a working fluid for Energy Storage and discharging processes. During off-peak hours, when electricity is at its cheapest and demand for electricity is at its lowest, liquid air/nitrogen is produced in an air liquefaction and separation plant and stored in cryogenic tanks close to the atmospheric pressure. During peak hours, the cryogenic liquid is heated up using environmental heat and then superheated using other heat sources (if available). The boiling of the cryogenic liquid will form a high pressure gas that drives an expansion device to produce shaft power or electricity. The concept of CES was first proposed by University of Newcastle upon Tyne (United Kingdom) in 1977 as an alternative to compressed air Energy Storage (CAES) technology for peak shaving in an electricity grid. Subsequently, the topic was investigated both numerically and experimentally by both industrial companies such as Mitsubishi Heavy Industries, Hitachi, Expansion Energy, and Highview Power Storage Systems and academic institutions. It is, however, the work from 2005 at the University of Leeds in collaboration with Highview Power Storage Systems that led to the world's first fully operational MWh pilot grid-connected plant. Keywords: Energy Storage; thermal system; regenerator; VPS cycle; transportation system

  • Progress in electrical Energy Storage system: A critical review
    Progress in Natural Science, 2009
    Co-Authors: Haisheng Chen, Thang Ngoc Cong, Yongliang Li, Chunqing Tan, Wei Yang, Yulong Ding
    Abstract:

    Electrical Energy Storage technologies for stationary applications are reviewed. Particular attention is paid to pumped hydroelectric Storage, compressed air Energy Storage, battery, flow battery, fuel cell, solar fuel, superconducting magnetic Energy Storage, flywheel, capacitor/supercapacitor, and thermal Energy Storage. Comparison is made among these technologies in terms of technical characteris- tics, applications and deployment status.

Andrew Pimm - One of the best experts on this subject based on the ideXlab platform.

  • lowering the cost of large scale Energy Storage high temperature adiabatic compressed air Energy Storage
    Propulsion and Power Research, 2017
    Co-Authors: Bruno Cardenas, Bharath Kantharaj, Andrew Pimm, M Simpson, J A Garvey, S D Garvey
    Abstract:

    Compressed air Energy Storage is an Energy Storage technology with strong potential to play a significant role in balancing Energy on transmission networks, owing to its use of mature technologies and low cost per unit of Storage capacity. Adiabatic compressed air Energy Storage (A-CAES) systems typically compress air from ambient temperature in the charge phase and expand the air back to ambient temperature in the discharge phase. This papers explores the use of an innovative operating scheme for an A-CAES system aimed at lowering the total cost of the system for a given exergy Storage capacity. The configuration proposed considers preheating of the air before compression which increases the fraction of the total exergy that is stored in the form of high-grade heat in comparison to existing designs in which the main exergy Storage medium is the compressed air itself. Storing a high fraction of the total exergy as heat allows reducing the capacity of costly pressure stores in the system and replacing it with cheaper thermal Energy stores. Additionally, a configuration that integrates a system based on the aforementioned concept with solar thermal power or low-medium grade waste heat is introduced and thoroughly discussed.

  • Compressed air Energy Storage with liquid air capacity extension
    Applied Energy, 2015
    Co-Authors: Bharath Kantharaj, Seamus Garvey, Andrew Pimm
    Abstract:

    As renewable electricity generation capacity increases, Energy Storage will be required at larger scales. Compressed Air Energy Storage (CAES) at large scales, with effective management of heat, is recognised to have potential to provide affordable grid-scale Energy Storage. Where suitable geologies are unavailable, compressed air could be stored in pressurised steel tanks above ground, but this would incur significant Storage costs. Liquid Air Energy Storage (LAES), on the other hand, does not need a pressurised Storage vessel, can be located almost anywhere, has a relatively large volumetric exergy density at ambient pressure, and has relatively low marginal cost of Energy Storage capacity even at modest scales. However, it has lower roundtrip efficiency than compressed air Energy Storage technologies. This paper carries out thermodynamic analyses for an Energy Storage installation comprising a compressed air component supplemented with a liquid air store, and additional machinery to transform between gaseous air at ambient temperature and high pressure, and liquid air at ambient pressure. A roundtrip efficiency of 42% is obtained for the conversion of compressed air at 50. bar to liquid air, and back. The proposed system is more economical than pure LAES and more economical than a pure CAES installation if the Storage duration is sufficiently long and if the high-pressure air store cannot exploit some large-scale geological feature.

Haisheng Chen - One of the best experts on this subject based on the ideXlab platform.

  • comprehensive exergy analysis of the dynamic process of compressed air Energy Storage system with low temperature thermal Energy Storage
    Applied Thermal Engineering, 2019
    Co-Authors: Yujie Xu, Xinjing Zhang, Liang Wang, Yi Zhang, Haisheng Chen
    Abstract:

    Abstract Compressed air Energy Storage (CAES) system with low-temperature thermal Energy Storage (TES) has advantages of profitability and start-up characteristics in the field of electrical Energy Storage, and many CAES pilot plants have been built in China. However, CAES systems face challenge of different working conditions in operation process due to changing pressure of air Storage, influence of components’ thermal mass and other boundary conditions. In this paper, we simulated a dynamic CAES system in which part-load operation regularities of compressors and expanders, thermal inertia of components, volumetric effects of pipes and heat exchange between system and environment were taken into consideration. Based on this, exergy analysis of whole Energy Storage process and influence of ambient factors on multi-cycle performances have been conducted. The results indicate detailed features of the dynamic charging and discharging processes including system performance at start-up stage and entire process, which are beneficial to a comprehensive understanding of operation process and can be a reference in design and operation of CAES plants.

  • Progress in electrical Energy Storage system: A critical review
    Progress in Natural Science, 2009
    Co-Authors: Haisheng Chen, Thang Ngoc Cong, Yongliang Li, Chunqing Tan, Wei Yang, Yulong Ding
    Abstract:

    Electrical Energy Storage technologies for stationary applications are reviewed. Particular attention is paid to pumped hydroelectric Storage, compressed air Energy Storage, battery, flow battery, fuel cell, solar fuel, superconducting magnetic Energy Storage, flywheel, capacitor/supercapacitor, and thermal Energy Storage. Comparison is made among these technologies in terms of technical characteris- tics, applications and deployment status.

Johannes L. Van Niekerk - One of the best experts on this subject based on the ideXlab platform.

  • a review of large scale electrical Energy Storage
    International Journal of Energy Research, 2015
    Co-Authors: Sameer Hameer, Johannes L. Van Niekerk
    Abstract:

    Summary This paper gives a broad overview of a plethora of Energy Storage technologies available on the large-scale complimented with their capabilities conducted by a thorough literature survey. According to the capability graphs generated, thermal Energy Storage, flow batteries, lithium ion, sodium sulphur, compressed air Energy Storage, and pumped hydro Storage are suitable for large-scale Storage in the order of 10's to 100's of MWh; metal air batteries have a high theoretical Energy density equivalent to that of gasoline along with being cost efficient; compressed air Energy Storage has the lowest capital Energy cost in comparison to other Energy Storage technologies; flywheels, super conducting magnetic Storage, super capacitors, capacitors, and pumped hydro Storage have very low Energy density; compressed air Energy Storage, cryogenic Energy Storage, thermal Energy Storage, and batteries have relatively high Energy density; high efficiencyin tandem with high Energy density results in a cost efficient Storage system; and power density pitted against Energy density provides a clear demarcation between power and Energy applications. This paper also provides a mathematical model for thermal Energy Storage as a battery. Furthermore, a comprehensive techno-economic evaluation of the various Energy Storage technologies would assist in the development of an Energy Storage technology roadmap. Copyright © 2015 John Wiley & Sons, Ltd.

Jinyue Yan - One of the best experts on this subject based on the ideXlab platform.