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Devender Kumar - One of the best experts on this subject based on the ideXlab platform.

  • Thermodynamic (Exergy-Energy) Analysis of a Low Pressure Kaptiza Claude System for Liquefaction of Gases
    2020
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    Abstract From various Cryogenics systems, lot of a detailed thermodynamic analysis of cryosystems have been reported in literature however the modification of Claude systems for low pressurefor high yield of liquefied mass of Gases is very limited available in literature so far.A comprehensive energy and exergy analysis of Claude Kaptiza cryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Kaptiza system and it was observed that the inlet variables like pressure temperature and intermediate mass ratio respectively are 3-6 bar,280-290 K and 0.7for optimized result of considered variables such Liquefaction mass, liquidation temperature and second law efficiency in low pressure Kaptiza Claude system. Nomenclatur

  • thermodynamic exergy energy analysis of a low pressure kaptiza claude system for Liquefaction of Gases
    2015
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    From various Cryogenics systems, lot of a detailed thermodynamic analysis of cryosystems have been reported in literature however the modification of Claude systems for low pressurefor high yield of liquefied mass of Gases is very limited available in literature so far.A comprehensive energy and exergy analysis of Claude Kaptiza cryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Kaptiza system and it was observed that the inlet variables like pressure temperature and intermediate mass ratio respectively are 3-6 bar,280-290 K and 0.7for optimized result of considered variables such Liquefaction mass, liquidation temperature and second law efficiency in low pressure Kaptiza Claude system. Nomenclature

  • exergy analysis of pre cooled linde system for Liquefaction of Gases for improving performance of linde based cryogenics systems
    International Journal of Research in Engineering and Technology, 2014
    Co-Authors: Devender Kumar
    Abstract:

    Cryogenic temperature generally temperature below the -150 o C .Various number of Gases are liquefy by using very first Linde Hampson cycle but due to inefficiency of system output of Liquefaction mass is very low as compared to expanses. Linde Pre-cooled system is designed to meet the gap in the basic Linde system. The output as well as the second law efficiency of Linde pre-cooled system is more than the basic Linde system. A complete thermo –analysis of pre-cooled Linde system is carried out and various results are predicted. The effect of some various parameters like refrigerant mass flow ratio and compressor pressure on system with six different Gases is studied by applying computational numerical technique. Effect of these parameters on system conclude that the system work good near 200 bar pressure and refrigerant mass flow ratio of 0.03 is suitable for system showing high second law efficiency and Liquefaction mass ratio and low work done per Liquefaction mass ratio.

  • energy exergy analysis of a high pressure claude haylentsystem for Liquefaction of Gases
    2014
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    From various Cryogenics systems, lot of a detailed thermodynamic analysis ofcryosystems have been reported in literature however the modification of Claude systems for high pressure for high yield of liquefied mass of Gases is very limited available in literature so far . A comprehensive energy and exergy analysis of Claude Heylandtcryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Haylent system and it was observed that the Methane gas is more suitable than any other observed gas and 350 and 500 bar is best compressor pressure per kg of inlet gas.

  • thermodynamic analysis of linde system for Liquefaction of Gases
    2013
    Co-Authors: Devender Kumar
    Abstract:

    Cryogenics systems are which are capable of producing temperature below -150 .Linde cryogenics cycle is carefully observe and various Gases are liquefy by it. A comprehensive exergy analysis and other analysis of linde system is carried out by using various different Gases with variable properties. Numerical computation is carried out to find out mutually dependency and effect of various properties on other properties and their involvement in exergydestruction. It was observed that inlet properties and every part performance put huge impact on overall out of system Inlet pressure ranging from 3 to 6 bar and inlet Temperature at 298 K while compressor pressure ranging from 300 to 400 bar is optimum values of performance parameters for linde system.

Rillo Conrado - One of the best experts on this subject based on the ideXlab platform.

  • Cryocooler Suitable for Gas Liquefaction Applications, Gas Liquefaction System and Method Comprising the Same
    2019
    Co-Authors: Sesé Monclús Javier, Rillo Conrado
    Abstract:

    [EN] The present invention relates to a cryocooler suitable for gas Liquefaction applications, that comprises a coldhead (1) with one or more refrigeration stages (2, 3); further comprising: a refrigerator compressor (4) for distributing compressed gas-phase cryogen inside the coldhead (1); a heat exchanging coil (9) arranged at least partially around the external region of the coldhead (1); at least one extraction orifice (8) communicating a gas circulation circuit (5) inside the coldhead (1) with the heat exchanging coil (9); acting said extraction orifice/s (8) as pass-through port/s which allow the gas inside the coldhead (1) to flow through the inside of the heat exchanger coil (9) for exchanging heat with the exterior thereof, and wherein the heat exchanging coil (9) is adapted to connect and redirect the gas to one return port (8') connected to the gas circulation circuit (5). Another object of the invention relates to a cryogen-gas Liquefaction system (11) and a method for Liquefaction of Gases that comprises said system (11)[FR] La présente invention concerne un refroidisseur cryogénique conçu pour des applications de liquéfaction de gaz, qui comprend une tête froide (1) dotée d'un ou de plusieurs étages de réfrigération (2, 3) ; comprenant en outre : un compresseur de réfrigérateur (4) pour distribuer un cryogène en phase gazeuse comprimé à l'intérieur de la tête froide (1) ; une bobine d'échangeur de chaleur (9) disposée au moins partiellement autour de la région externe de la tête froide (1) ; au moins un orifice d'extraction (8) communiquant un circuit de circulation de gaz (5) à l'intérieur de la tête froide (1) avec la bobine d'échange de chaleur (9) ; faire fonctionner ledit ou lesdits orifices d'extraction (8) en tant qu'orifices de passage qui permettent au gaz à l'intérieur de la culasse (1) de s'écouler à travers l'intérieur de la bobine d'échangeur de chaleur (9) pour échanger de la chaleur avec l'extérieur de celui-ci, et la bobine d'échangeur de chaleur (9) étant conçue pour connecter et rediriger le gaz vers un orifice de retour (8') raccordé au circuit de circulation de gaz (5). Un autre objet de l'invention concerne un système de liquéfaction de gaz cryogénique (11) et un procédé de liquéfaction de gaz qui comprend ledit système (11)Peer reviewedUniversidad de Zaragoza, Consejo Superior de Investigaciones Científicas (España)A3 Informe de búsqueda internaciona

  • Cryocooler Suitable for Gas Liquefaction Applications, Gas Liquefaction System and Method Comprising the Same
    2018
    Co-Authors: Sesé Monclús Javier, Rillo Conrado
    Abstract:

    The present invention relates to a cryocooler suitable for gas Liquefaction applications, that comprises a coldhead (1) with one or more refrigeration stages (2, 3); further comprising: a refrigerator compressor (4) for distributing compressed gas-phase cryogen inside the coldhead (1); a heat exchanging coil (9) arranged at least partially around the external region of the coldhead (1); at least one extraction orifice (8) communicating a gas circulation circuit (5) inside the coldhead (1) with the heat exchanging coil (9); acting said extraction orifice/s (8) as pass-through port/s which allow the gas inside the coldhead (1) to flow through the inside of the heat exchanger coil (9) for exchanging heat with the exterior thereof, and wherein the heat exchanging coil (9) is adapted to connect and redirect the gas to one return port (8') connected to the gas circulation circuit (5). Another object of the invention relates to a cryogen-gas Liquefaction system (11) and a method for Liquefaction of Gases that comprises said system (11)Peer reviewedUniversidad de Zaragoza, Consejo Superior de Investigaciones Científicas (España)A1 Solicitud de patente con informe sobre el estado de la técnic

  • Sistema y método de licuefacción de gas
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.A3 Informe de búsqueda internaciona

  • Système et procédé de liquéfaction de gaz
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.B1 Patente sin examen previ

  • Sistema y método de licuefacción de gas
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.A2 Solicitud de patente sin informe sobre el estado de la técnic

R S Mishra - One of the best experts on this subject based on the ideXlab platform.

  • Thermodynamic (Exergy-Energy) Analysis of a Low Pressure Kaptiza Claude System for Liquefaction of Gases
    2020
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    Abstract From various Cryogenics systems, lot of a detailed thermodynamic analysis of cryosystems have been reported in literature however the modification of Claude systems for low pressurefor high yield of liquefied mass of Gases is very limited available in literature so far.A comprehensive energy and exergy analysis of Claude Kaptiza cryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Kaptiza system and it was observed that the inlet variables like pressure temperature and intermediate mass ratio respectively are 3-6 bar,280-290 K and 0.7for optimized result of considered variables such Liquefaction mass, liquidation temperature and second law efficiency in low pressure Kaptiza Claude system. Nomenclatur

  • thermodynamic exergy energy analysis of a low pressure kaptiza claude system for Liquefaction of Gases
    2015
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    From various Cryogenics systems, lot of a detailed thermodynamic analysis of cryosystems have been reported in literature however the modification of Claude systems for low pressurefor high yield of liquefied mass of Gases is very limited available in literature so far.A comprehensive energy and exergy analysis of Claude Kaptiza cryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Kaptiza system and it was observed that the inlet variables like pressure temperature and intermediate mass ratio respectively are 3-6 bar,280-290 K and 0.7for optimized result of considered variables such Liquefaction mass, liquidation temperature and second law efficiency in low pressure Kaptiza Claude system. Nomenclature

  • energy exergy analysis of a high pressure claude haylentsystem for Liquefaction of Gases
    2014
    Co-Authors: Devender Kumar, R S Mishra
    Abstract:

    From various Cryogenics systems, lot of a detailed thermodynamic analysis ofcryosystems have been reported in literature however the modification of Claude systems for high pressure for high yield of liquefied mass of Gases is very limited available in literature so far . A comprehensive energy and exergy analysis of Claude Heylandtcryogenic system for various Gases is carried out in this paper by using various properties variables (i.e temperature, pressure etc) in system to find out the more efficient statics of system included exergy destructions in system .Numerical computations have been carried out for various Gases in Claude Haylent system and it was observed that the Methane gas is more suitable than any other observed gas and 350 and 500 bar is best compressor pressure per kg of inlet gas.

Warburton, Richard J. - One of the best experts on this subject based on the ideXlab platform.

  • Sistema y método de licuefacción de gas
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.A3 Informe de búsqueda internaciona

  • Système et procédé de liquéfaction de gaz
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.B1 Patente sin examen previ

  • Sistema y método de licuefacción de gas
    2011
    Co-Authors: Rillo Conrado, Tocado Leticia, Reineman, Richard C., Warburton, Richard J.
    Abstract:

    A system and a method for Liquefaction of Gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal Liquefaction rates.Peer reviewedConsejo Superior de Investigaciones Científicas (España), Universidad de Zaragoza, GWR Instruments, Inc.A2 Solicitud de patente sin informe sobre el estado de la técnic

Gade Pandu Rangaiah - One of the best experts on this subject based on the ideXlab platform.

  • Inherent Safety Analysis of a Propane Precooled Gas-Phase Liquified Natural Gas Process
    Industrial & Engineering Chemistry Research, 2009
    Co-Authors: Nipen Mahendrakumar Shah, Andrew Forbes Alexander Hoadley, Gade Pandu Rangaiah
    Abstract:

    Refrigeration is widely used in chemical and petrochemical industries and in the Liquefaction of Gases including natural gas (LNG). There are many commercial processes being used in the LNG industries. These processes are energy intensive and require large capital investment. Conventional refrigeration processes such as the single mixed refrigerant process and the cascade refrigerant process operate by evaporation of the refrigerant. Gas-phase refrigeration processes have one important advantage over these processes and this is their very low hydrocarbon inventory. However, precooling the natural gas feed stream with a conventional propane refrigeration system significantly improves the efficiency of the gas phase refrigeration process. However, due to the propane precooling cycle, the liquid hydrocarbon inventory in the process increases, and hence, the hazard potential of the overall process increases. Therefore, there is a tradeoff between the energy efficiency and the inherent safety of the process. T...