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    Altitude

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    Sekar Cm
    Atmospheric pressure decreases with increasing altitude above sea level according to a defined relationship. The standard atmospheric pressure at sea level is 101,325 Pa. Pressure decreases from 101,325 Pa at sea level to 22632.1 Pa between 11,000-20,000 meters and further decreases to 5474.89 Pa between 20,000-32,000 meters due to reductions in temperature and density with increased altitude.

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    Altitude

    Uploaded by

    Sekar Cm
    62 views1 page
    Atmospheric pressure decreases with increasing altitude above sea level according to a defined relationship. The standard atmospheric pressure at sea level is 101,325 Pa. Pressure decreases from 101,325 Pa at sea level to 22632.1 Pa between 11,000-20,000 meters and further decreases to 5474.89 Pa between 20,000-32,000 meters due to reductions in temperature and density with increased altitude.

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    Atmospheric pressure decreases with increasing altitude above sea level according to a defined relationship. The standard atmospheric pressure at sea level is 101,325 Pa. Pressure decreases from 101,325 Pa at sea level to 22632.1 Pa between 11,000-20,000 meters and further decreases to 5474.89 Pa between 20,000-32,000 meters due to reductions in temperature and density with increased altitude.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    62 views1 page

    Altitude

    Uploaded by

    Sekar Cm
    Atmospheric pressure decreases with increasing altitude above sea level according to a defined relationship. The standard atmospheric pressure at sea level is 101,325 Pa. Pressure decreases from 101,325 Pa at sea level to 22632.1 Pa between 11,000-20,000 meters and further decreases to 5474.89 Pa between 20,000-32,000 meters due to reductions in temperature and density with increased altitude.

    Copyright:

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    Download as DOC, PDF, TXT or read online from Scribd
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    The Impact of Altitude Change

    The standard atmosphere pressure is pressure defined as being equal to 101,325 Pa or101.325 kPa and normally
    refer to mean sea level (h=0 m). Atmospheric pressure isdecreased with altitude (elevation from mean sea level or
    earth surface) with following relation.

    where
    Pb = Static pressure (Pa)
    Tb = Standard temperature (K)
    Lb = Standard temperature lapse rate -0.0065 (K/m) in ISA
    h = Height above sea level (meters)
    hb = Height at bottom of layer b (meters; e.g., h1 = 11,000 meters)
    R = Universal gas constant for air: 8.31432 N.m /(mol.K)
    g0 = Gravitational acceleration (9.80665 m/s2)
    M = Molar mass of Earth's air (0.0289644 kg/mol)

    Altitude = 0 – 11000m, Tb = 288.15 K, Lb = -0.0065 K/m, Pb = 101325 Pa


    Altitude = 11000 – 20000m, Tb = 216.65 K, Lb = -1 x 10E-30 K/m, Pb = 22632.1 Pa
    Altitude = 20000 – 32000m, Tb = 216.65 K, Lb = 0.001 K/m, Pb = 5474.89 Pa

    By inclusion of specific parameters, for altitude = 0 – 11000m, atmospheric pressure is

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