The Experts below are selected from a list of 106614 Experts worldwide ranked by ideXlab platform

Omar Ellabban - One of the best experts on this subject based on the ideXlab platform.

  • renewable energy resources current status future prospects and their Enabling Technology
    Renewable & Sustainable Energy Reviews, 2014
    Co-Authors: Omar Ellabban, Haitham Aburub, Frede Blaabjerg
    Abstract:

    Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because they can, in principle, exponentially exceed the world׳s energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy resources.

  • energy storage as an Enabling Technology for the smart grid
    Qatar Foundation Annual Research Conference Proceedings Volume 2014 Issue 1, 2014
    Co-Authors: Omar Ellabban, Haitham Aburub
    Abstract:

    In today's world, the need for more energy seems to be ever increasing. The high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses, have made renewable energy sources (RES) attractive in today's world economy. However, the fluctuating and intermittent nature of these RES causes variations of power flow that can significantly affect the stability and operation of the electrical grid. In addition, the power output of these RES is not as easy to adjust to changing demand cycles as the output from the traditional power sources. To overcome these problems, energy from these RES must be stored when excess is produced and then released, when production levels are less than the required demand. Therefore, in order for RES to become completely reliable as primary sources of energy, energy storage systems (ESS) is a crucial factor. The impact of the ESS in future grid is receiving more attention than ever from system designers, grid operations and regulators. Energy storage technologies have the potential to support our energy system's evolution, they can be used for multiple applications, such as: energy management, backup power, load leveling, frequency regulation, voltage support, and grid stabilization. In this work, an overview of the current and future energy storage technologies used for electric power applications is carried out. Furthermore, an assessment of the dynamic performance of energy storage technologies for the stabilization and control of the power flow of emerging smart grid will be presented. The EES can enhance the operation security and ensure the continuity of energy supply in future smart grids.

Frede Blaabjerg - One of the best experts on this subject based on the ideXlab platform.

  • renewable energy resources current status future prospects and their Enabling Technology
    Renewable & Sustainable Energy Reviews, 2014
    Co-Authors: Omar Ellabban, Haitham Aburub, Frede Blaabjerg
    Abstract:

    Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because they can, in principle, exponentially exceed the world׳s energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy resources.

  • power electronics as an Enabling Technology for renewable energy integration
    Journal of Power Electronics, 2003
    Co-Authors: Frede Blaabjerg, Zhe Chen
    Abstract:

    The global electrical energy consumption is still rising and there is a steady demand to increase the power capacity, to produce, distribute and use the energy as0 efficient as possible and furthermore to set up incentives to save energy at the end-user. Two major technologies will play important roles to fulfill those targets. One is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficiency power electronics in power systems for high efficiency and high performance applications. This paper discusses both areas, in particular the power electronic application m wind power integration

Haitham Aburub - One of the best experts on this subject based on the ideXlab platform.

  • renewable energy resources current status future prospects and their Enabling Technology
    Renewable & Sustainable Energy Reviews, 2014
    Co-Authors: Omar Ellabban, Haitham Aburub, Frede Blaabjerg
    Abstract:

    Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because they can, in principle, exponentially exceed the world׳s energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy resources.

  • energy storage as an Enabling Technology for the smart grid
    Qatar Foundation Annual Research Conference Proceedings Volume 2014 Issue 1, 2014
    Co-Authors: Omar Ellabban, Haitham Aburub
    Abstract:

    In today's world, the need for more energy seems to be ever increasing. The high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses, have made renewable energy sources (RES) attractive in today's world economy. However, the fluctuating and intermittent nature of these RES causes variations of power flow that can significantly affect the stability and operation of the electrical grid. In addition, the power output of these RES is not as easy to adjust to changing demand cycles as the output from the traditional power sources. To overcome these problems, energy from these RES must be stored when excess is produced and then released, when production levels are less than the required demand. Therefore, in order for RES to become completely reliable as primary sources of energy, energy storage systems (ESS) is a crucial factor. The impact of the ESS in future grid is receiving more attention than ever from system designers, grid operations and regulators. Energy storage technologies have the potential to support our energy system's evolution, they can be used for multiple applications, such as: energy management, backup power, load leveling, frequency regulation, voltage support, and grid stabilization. In this work, an overview of the current and future energy storage technologies used for electric power applications is carried out. Furthermore, an assessment of the dynamic performance of energy storage technologies for the stabilization and control of the power flow of emerging smart grid will be presented. The EES can enhance the operation security and ensure the continuity of energy supply in future smart grids.

Andreas Kirschning - One of the best experts on this subject based on the ideXlab platform.

  • flow chemistry a key Enabling Technology for multistep organic synthesis
    ChemInform, 2012
    Co-Authors: Jens Wegne, Sascha Ceyla, Andreas Kirschning
    Abstract:

    Review: mainly presented for heterocyclic systems including drug development; ca. 150 refs.

  • Flow Chemistry – A Key Enabling Technology for (Multistep) Organic Synthesis
    Advanced Synthesis & Catalysis, 2012
    Co-Authors: Jens Wegner, Sascha Ceylan, Andreas Kirschning
    Abstract:

    Laboratory scaled flow-through processes have seen an explosive development over the past decade and have become an Enabling Technology for improving synthetic efficiency through automation and process optimization. Practically, flow devices are a crucial link between bench chemists and process engineers. The present review focuses on two unique aspects of modern flow chemistry where substantial advantages over the corresponding batch processes have become evident. Flow chemistry being one out of several Enabling technologies can ideally be combined with other Enabling technologies such as energy input. This may be achieved in form of heat to create supercritical conditions. Here, indirect methods such as microwave irradiation and inductive heating have seen widespread applications. Also radiation can efficiently be used to carry out photochemical reactions in a highly practical and scalable manner. A second unique aspect of flow chemistry compared to batch chemistry is associated with the option to carry out multistep synthesis by designing a flow set-up composed of several flow reactors. Besides their role as chemical reactors these can act as elements for purification or solvent switch.

  • flow chemistry a key Enabling Technology for multistep organic synthesis
    Advanced Synthesis & Catalysis, 2012
    Co-Authors: Jens Wegne, Sascha Ceyla, Andreas Kirschning
    Abstract:

    Laboratory scaled flow-through processes have seen an explosive development over the past decade and have become an Enabling Technology for improving synthetic efficiency through automation and process optimization. Practically, flow devices are a crucial link between bench chemists and process engineers. The present review focuses on two unique aspects of modern flow chemistry where substantial advantages over the corresponding batch processes have become evident. Flow chemistry being one out of several Enabling technologies can ideally be combined with other Enabling technologies such as energy input. This may be achieved in form of heat to create supercritical conditions. Here, indirect methods such as microwave irradiation and inductive heating have seen widespread applications. Also radiation can efficiently be used to carry out photochemical reactions in a highly practical and scalable manner. A second unique aspect of flow chemistry compared to batch chemistry is associated with the option to carry out multistep synthesis by designing a flow set-up composed of several flow reactors. Besides their role as chemical reactors these can act as elements for purification or solvent switch.

Namho Hur - One of the best experts on this subject based on the ideXlab platform.

  • Layered-Division Multiplexing: An Enabling Technology for Multicast/Broadcast Service Delivery in 5G
    IEEE Communications Magazine, 2018
    Co-Authors: Liang Zhang, Khalil Salehian, Sebastien Lafleche, Xianbin Wang, Sung Ik Park, Heung Mook Kim, Jae-young Lee, Namho Hur
    Abstract:

    Future 5G systems will include a point-to-multipoint (P2MP) transmission mode to achieve high capacity and high spectrum efficiency for multiple use cases, such as IoT, lifeline communications, and broadcast-type services. Layered-division-multiplexing (LDM) is a novel non-orthogonal multiplexing Technology recently adopted by the next generation digital TV broadcast system, ATSC 3.0, which is capable of providing significant capacity improvement when delivering multiple broadcast services simultaneously. This article explores the application of LDM as an Enabling Technology for 5G to achieve high-efficiency P2MP transmission and to deliver more diversified broadcast-type services using the mobile broadband infrastructure. The potential advantages that can be offered by LDM are demonstrated by capacity analysis and computer simulations. Coverage studies show that a 5G P2MP subsystem with LDM can deliver high-quality broadcast services using the broadband infrastructure. Finally, some general guidelines on the receiver implementation are presented to minimize the hardware complexity of consumer devices.

  • layered division multiplexing an Enabling Technology for multicast broadcast service delivery in 5g
    IEEE Communications Magazine, 2018
    Co-Authors: Liang Zhang, Khalil Salehian, Sebastien Lafleche, Xianbin Wang, Sung Ik Park, Heung Mook Kim, Jae-young Lee, Namho Hur, Pablo Angueira, Jon Montalban
    Abstract:

    Future 5G systems will include a point-to-multipoint (P2MP) transmission mode to achieve high capacity and high spectrum efficiency for multiple use cases, such as IoT, lifeline communications, and broadcast-type services. Layered-division-multiplexing (LDM) is a novel non-orthogonal multiplexing Technology recently adopted by the next generation digital TV broadcast system, ATSC 3.0, which is capable of providing significant capacity improvement when delivering multiple broadcast services simultaneously. This article explores the application of LDM as an Enabling Technology for 5G to achieve high-efficiency P2MP transmission and to deliver more diversified broadcast-type services using the mobile broadband infrastructure. The potential advantages that can be offered by LDM are demonstrated by capacity analysis and computer simulations. Coverage studies show that a 5G P2MP subsystem with LDM can deliver high-quality broadcast services using the broadband infrastructure. Finally, some general guidelines on the receiver implementation are presented to minimize the hardware complexity of consumer devices.