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    URG-2000-30EH切割器原版資料

    下載次數:321 瀏覽次數:434發布時間:2017-03-22 11:19
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    文檔詳情

    SPECIFICATIONS:

    ? Teflon? Coated Aluminum

    ? Dimensions: 6 1/2” x 6 1/8” x 1 1/2”

    ? Weight: .75 lb

    ? 5/8” OD 90 Degree Inlet Arm (URG-2000-30ENYA)

    ? Also Available with Straight Inlet Arm (URG-2000-30ENYF)

    Clean filtered air at a chosen pressure enters an atomizer which contains a known volume of distilled water and isopropyl alcohol. A concentrated

    solution of polystyrene latex beads (PSL) of known aerodynamic diameter is added to the water and alcohol solution. The atomized aerosol passes

    through a steel tube containing a radioactive Krypton-85 source, thereby neutralizing any electric charge on the PSL aerosol. The aerosol then

    flows into a chamber of a known volume and is mixed with filtered dry air.

    The cyclone is fitted to the bottom of the mixing chamber and air containing the test aerosol is pulled through the cyclone. The particle counter

    operates at a constant flowrate (Q2) through the flow meter (Q1) making a net flow through the test cyclone. Air is drawn alternately through the

    cyclone and directly from the mixing chamber. Particle concentrations are recorded eight times upstream and downstream of the test cyclone,

    resulting in an average concentration. 

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