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

M Nardone - One of the best experts on this subject based on the ideXlab platform.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review E, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,${\mathrm{\ensuremath{\omega}}}_{1}$,${\mathrm{\ensuremath{\omega}}}_{2}$), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass. The same spherical harmonic expansion procedure can be applied to a number of other molecular Liquids where diffraction data are available.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review A, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,ω 1 ,ω 2 ), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass

A K Soper - One of the best experts on this subject based on the ideXlab platform.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review E, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,${\mathrm{\ensuremath{\omega}}}_{1}$,${\mathrm{\ensuremath{\omega}}}_{2}$), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass. The same spherical harmonic expansion procedure can be applied to a number of other molecular Liquids where diffraction data are available.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review A, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,ω 1 ,ω 2 ), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass

Boris I. Katorgin - One of the best experts on this subject based on the ideXlab platform.

  • new 30 m flexible hybrid energy transfer line with Liquid Hydrogen and superconducting hbox mgb _ 2 cable development and test results
    IEEE Transactions on Applied Superconductivity, 2015
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Sergey Yu. Zanegin, Ilya V. Antyukhov, Valery P. Firsov, Grigory G. Svalov, Boris I. Katorgin
    Abstract:

    In the framework of the second stage of the Russian R&D program for the development of hybrid energy transfer lines (HETLs), the new 30-m $\hbox{MgB}_{2}$ superconducting cable with high voltage insulation has been developed and tested. The superconducting cable was inserted into a newly developed flexible 30-m Hydrogen cryogenic line that has three sections with different types of thermal insulation in each section. High-voltage current leads were also developed. The superconducting cable, cryostat, and current leads have been tested in October 2013. Cable critical current was $\sim$ 3500 A at $\sim$ 21 K. Cable and current leads passed a high voltage test with 50-kV dc at Liquid Hydrogen temperature. The tests were performed at temperatures from 20 to 26 K, Hydrogen flow from 70 to 450 g/s, and pressure from 0.25 to 0.5 MPa. It was found that the active evaporating cryostatting system as a thermal insulation practically eliminated heat transfer from room temperature to Liquid Hydrogen. The flexible 30-m HETL developed is able to deliver $\sim$ up to 60 MW of chemical power and $\sim$ 75 MW of electrical power, i.e., $\sim$ 135 MW in total. $\hbox{MgB}_{2}$ cable design and test results of hybrid energy transfer lines are presented and discussed.

  • cryogenic tests of 30 m flexible hybrid energy transfer line with Liquid Hydrogen and superconducting mgb2 cable
    Physics Procedia, 2015
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Valery P. Firsov, Yu S Zanegin, V S Rachuk, Boris I. Katorgin
    Abstract:

    Abstract Recently we reported about first in the world test of 10 m hybrid energy transfer line with Liquid Hydrogen and MgB2 superconducting cable. In this paper we present the new development of our second hybrid energy transfer line with 30 m length. The flexible 30 m Hydrogen cryostat has three sections with different types of thermal insulation in each section: simple vacuum superinsulation, vacuum superinsulation with Liquid nitrogen shield and active evaporating cryostatting (AEC) system. We performed thermo-hydraulic tests of the cryostat to compare three thermo-insulating methods. The tests were performed at temperatures from 20 to 26 K, Hydrogen flow from 100 to 450 g/s and pressure from 0.25 to 0.5 MPa. It was found that AEC thermal insulation practically eliminated completely heat transfer from room temperature to Liquid Hydrogen in the 10 m section. AEC thermal insulation method can be used for long superconducting power cables. High voltage current leads were developed as well. The current leads and superconducting MgB2 cable have been passed high voltage DC test up to 50 kV DC. Critical current of the cable at ∼21 K was ∼3500 A. The 30 m hybrid energy system developed is able to deliver up to 135 MW of chemical and electrical power in total.

  • hybrid energy transfer line with Liquid Hydrogen and superconducting hbox mgb _ 2 cable first experimental proof of concept
    IEEE Transactions on Applied Superconductivity, 2013
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Valery P. Firsov, Grigory G. Svalov, Boris I. Katorgin, A L Rakhmanov
    Abstract:

    The transfer of massive amounts of both electrical and chemical power over long distances will present a major challenge for the global energy enterprise in the future. Attraction of Hydrogen is apparent as a chemical energy agent, possessing among the highest energy density content of various common fuels, whose combustive “waste” is simply water. It could be transferred via cryogenic tubes being Liquid at temperatures ~18-26 K. The usage of “gratis” cold to cool a superconducting cable made of a proper superconductor permits to deliver extra electrical power with the same line. In this paper, we describe the experimental modeling of this concept via a combined MgB2-cryogenic dc superconducting cable refrigerated by “singlet” phase Liquid Hydrogen. We present the design, construction details, and test results of a 10-m prototype, focusing on choice of MgB2 cable and cryostat technologies. We also discuss the opportunities and possibilities for future practical deployment of such hybrid energy delivery systems.

  • experimental hybrid power transmission line with Liquid Hydrogen and mgb 2 based superconducting cable
    Technical Physics Letters, 2012
    Co-Authors: Valery V. Kostyuk, Evegny V. Blagov, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Boris I. Katorgin, Vitaly S. Vysotsky, Valery P. Firsov
    Abstract:

    Results of developing and testing an experimental hybrid power transmission line with Liquid Hydrogen and superconducting power (SCP) cable based on magnesium diboride (MgB2) are presented. Critical currents of the MgB2 based prototype SCP cable have been determined for the first time at the forced flow of Liquid Hydrogen in a temperature interval of 20–26 K. Various regimes of SCP cable cryostatting with both subcooled saturated Liquid Hydrogen have been tested in a broad range of supply rates (7–220 g/s) and pressures (0.15–0.4 MPa).

Vitaly S. Vysotsky - One of the best experts on this subject based on the ideXlab platform.

  • new 30 m flexible hybrid energy transfer line with Liquid Hydrogen and superconducting hbox mgb _ 2 cable development and test results
    IEEE Transactions on Applied Superconductivity, 2015
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Sergey Yu. Zanegin, Ilya V. Antyukhov, Valery P. Firsov, Grigory G. Svalov, Boris I. Katorgin
    Abstract:

    In the framework of the second stage of the Russian R&D program for the development of hybrid energy transfer lines (HETLs), the new 30-m $\hbox{MgB}_{2}$ superconducting cable with high voltage insulation has been developed and tested. The superconducting cable was inserted into a newly developed flexible 30-m Hydrogen cryogenic line that has three sections with different types of thermal insulation in each section. High-voltage current leads were also developed. The superconducting cable, cryostat, and current leads have been tested in October 2013. Cable critical current was $\sim$ 3500 A at $\sim$ 21 K. Cable and current leads passed a high voltage test with 50-kV dc at Liquid Hydrogen temperature. The tests were performed at temperatures from 20 to 26 K, Hydrogen flow from 70 to 450 g/s, and pressure from 0.25 to 0.5 MPa. It was found that the active evaporating cryostatting system as a thermal insulation practically eliminated heat transfer from room temperature to Liquid Hydrogen. The flexible 30-m HETL developed is able to deliver $\sim$ up to 60 MW of chemical power and $\sim$ 75 MW of electrical power, i.e., $\sim$ 135 MW in total. $\hbox{MgB}_{2}$ cable design and test results of hybrid energy transfer lines are presented and discussed.

  • cryogenic tests of 30 m flexible hybrid energy transfer line with Liquid Hydrogen and superconducting mgb2 cable
    Physics Procedia, 2015
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Valery P. Firsov, Yu S Zanegin, V S Rachuk, Boris I. Katorgin
    Abstract:

    Abstract Recently we reported about first in the world test of 10 m hybrid energy transfer line with Liquid Hydrogen and MgB2 superconducting cable. In this paper we present the new development of our second hybrid energy transfer line with 30 m length. The flexible 30 m Hydrogen cryostat has three sections with different types of thermal insulation in each section: simple vacuum superinsulation, vacuum superinsulation with Liquid nitrogen shield and active evaporating cryostatting (AEC) system. We performed thermo-hydraulic tests of the cryostat to compare three thermo-insulating methods. The tests were performed at temperatures from 20 to 26 K, Hydrogen flow from 100 to 450 g/s and pressure from 0.25 to 0.5 MPa. It was found that AEC thermal insulation practically eliminated completely heat transfer from room temperature to Liquid Hydrogen in the 10 m section. AEC thermal insulation method can be used for long superconducting power cables. High voltage current leads were developed as well. The current leads and superconducting MgB2 cable have been passed high voltage DC test up to 50 kV DC. Critical current of the cable at ∼21 K was ∼3500 A. The 30 m hybrid energy system developed is able to deliver up to 135 MW of chemical and electrical power in total.

  • hybrid energy transfer line with Liquid Hydrogen and superconducting hbox mgb _ 2 cable first experimental proof of concept
    IEEE Transactions on Applied Superconductivity, 2013
    Co-Authors: Vitaly S. Vysotsky, Evegny V. Blagov, Valery V. Kostyuk, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Valery P. Firsov, Grigory G. Svalov, Boris I. Katorgin, A L Rakhmanov
    Abstract:

    The transfer of massive amounts of both electrical and chemical power over long distances will present a major challenge for the global energy enterprise in the future. Attraction of Hydrogen is apparent as a chemical energy agent, possessing among the highest energy density content of various common fuels, whose combustive “waste” is simply water. It could be transferred via cryogenic tubes being Liquid at temperatures ~18-26 K. The usage of “gratis” cold to cool a superconducting cable made of a proper superconductor permits to deliver extra electrical power with the same line. In this paper, we describe the experimental modeling of this concept via a combined MgB2-cryogenic dc superconducting cable refrigerated by “singlet” phase Liquid Hydrogen. We present the design, construction details, and test results of a 10-m prototype, focusing on choice of MgB2 cable and cryostat technologies. We also discuss the opportunities and possibilities for future practical deployment of such hybrid energy delivery systems.

  • experimental hybrid power transmission line with Liquid Hydrogen and mgb 2 based superconducting cable
    Technical Physics Letters, 2012
    Co-Authors: Valery V. Kostyuk, Evegny V. Blagov, Alexander A. Nosov, Sergey S. Fetisov, Ilya V. Antyukhov, Boris I. Katorgin, Vitaly S. Vysotsky, Valery P. Firsov
    Abstract:

    Results of developing and testing an experimental hybrid power transmission line with Liquid Hydrogen and superconducting power (SCP) cable based on magnesium diboride (MgB2) are presented. Critical currents of the MgB2 based prototype SCP cable have been determined for the first time at the forced flow of Liquid Hydrogen in a temperature interval of 20–26 K. Various regimes of SCP cable cryostatting with both subcooled saturated Liquid Hydrogen have been tested in a broad range of supply rates (7–220 g/s) and pressures (0.15–0.4 MPa).

C Andreani - One of the best experts on this subject based on the ideXlab platform.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review E, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,${\mathrm{\ensuremath{\omega}}}_{1}$,${\mathrm{\ensuremath{\omega}}}_{2}$), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass. The same spherical harmonic expansion procedure can be applied to a number of other molecular Liquids where diffraction data are available.

  • reconstruction of the orientational pair correlation function from neutron diffraction data the case of Liquid Hydrogen iodide
    Physical Review A, 1993
    Co-Authors: A K Soper, C Andreani, M Nardone
    Abstract:

    An analysis of partial-structure-factor information on molecular Liquids is described which uses the spherical harmonic expansion of the site-site structure factors to extract an estimate of the orientational pair-correlation function between molecules. Recently published neutron-diffraction data on the site-site partials in Liquid Hydrogen iodide at 210 K are used as the input data to this technique. The results, which are presented as a map of the orientational pair-correlation function, g(r,ω 1 ,ω 2 ), show the occurrence of pronounced relative orientational correlations between molecules at this temperature, even though the same orientations are apparently only weakly correlated with the molecular center of mass