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Heather Gamble - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Swirling Desolvation Gas Flow in an Atmospheric Pressure Ion Source
    Journal of The American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered. Figure ᅟ

  • effect of swirling desolvation gas flow in an atmospheric pressure ion source
    Journal of the American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Woodbridge Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered.

Serguei Savtchenko - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Swirling Desolvation Gas Flow in an Atmospheric Pressure Ion Source
    Journal of The American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered. Figure ᅟ

  • effect of swirling desolvation gas flow in an atmospheric pressure ion source
    Journal of the American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Woodbridge Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered.

Saffa Riffat - One of the best experts on this subject based on the ideXlab platform.

  • comparative performance of u Tube and Coaxial loop designs for use with a ground source heat pump
    Applied Thermal Engineering, 2012
    Co-Authors: Christopher Wood, Hao Liu, Saffa Riffat
    Abstract:

    Abstract The installation cost and coefficient of performance (COP) of a ground source heat pump (GSHP) system can be greatly affected by the design of its ground loop. An experimental investigation was conducted to compare the performance of two loop designs for use with the ground source heat pump of an ‘energy pile’ installation or a conventional borehole system. A Coaxial loop (a 40 mm OD Coaxial Tube with a 20 mm OD interior pipe) and a U-Tube (20 mm OD pipes) of a length of 72 m were constructed, tested and analysed in terms of ground heat extraction capability and hydraulic flow characteristics. The use of the Coaxial loop design could potentially reduce the cost of drilling boreholes and make the installation easier on site, as the effective diameter would be smaller than a comparable U-Tube with the same mass flow rate, considering that the U-Tube requires a minimum 10 mm spacer between the legs. Hydraulic performance tests have shown that the U-Tube achieved the transitional-turbulent flow at a glycol flow rate of approximately 0.14L/s, whereas the flow in the Coaxial remained laminar across the glycol flow rate range of 0.05–0.25L/s. Heat pump performance tests have shown that the U-Tube achieved a COP of at least 0.08 greater than the Coaxial loop across the range of glycol flow rates investigated, while the heat output was at least 12% greater when using the U-Tube. Therefore, it can be concluded that the Coaxial loop in its current form is seen not to add any performance benefit against the U-Tube.

Nasser Ashgriz - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Swirling Desolvation Gas Flow in an Atmospheric Pressure Ion Source
    Journal of The American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered. Figure ᅟ

  • effect of swirling desolvation gas flow in an atmospheric pressure ion source
    Journal of the American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Woodbridge Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered.

Chuck Jolliffe - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Swirling Desolvation Gas Flow in an Atmospheric Pressure Ion Source
    Journal of The American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered. Figure ᅟ

  • effect of swirling desolvation gas flow in an atmospheric pressure ion source
    Journal of the American Society for Mass Spectrometry, 2014
    Co-Authors: Serguei Savtchenko, Nasser Ashgriz, Chuck Jolliffe, Lisa Woodbridge Cousins, Heather Gamble
    Abstract:

    A numerical study is performed to examine the effect of introducing a swirling desolvation gas flow on the flow transport characteristics in an electrospray and an atmospheric pressure chemical ionization (APCI) system. An ion source having three Coaxial Tubes is considered: (1) an inner capillary Tube to inject the liquid sample, (2) a center Coaxial Tube to provide a room temperature gas flow to nebulize the liquid, referred to as the nebulizing gas flow, and (3) an outer Coaxial Tube having a converging exit to supply a high temperature gas for droplet desolvation, referred to as the desolvation gas flow. The results show that a swirling desolvation gas flow reduces the dispersion of the nebulizing gas and suppresses turbulent diffusion. The effect of swirling desolvation flow on the trajectory of a range of droplet sizes emitted from a source is also considered.