psychrometrics[1] - EML 4600 LECTURE 1 Properties of Moist...

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EML 4600 LECTURE 1 Properties of Moist Air: PSYCHROMETRICS Maybe New or Review for You Reading the Chart Mixing Process Heating Process Cooling with Dehumidification Process H. A. . . Ingley PhD,PE
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EML 4600 LECTURE 1 PSYCHROMETRICS: Reading the Chart Thermophysical properties of moist air (air plus water vapor) Chart is for a given pressure, usually atmospheric Chart usually covers a given range of temperatures Chart is based on empirical equations, e.g. the Carrier equations Several properties are referenced to lbm of dry air H. A. . . Ingley PhD,PE
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EML 4930 LECTURE 9 H. A. . . Ingley PhD,PE
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EML 4600 LECTURE 1 PSYCHROMETRICS: Reading the Chart Example: Given a dry bulb temperature of 75 deg F And a relative humidity of 50% find: Wet bulb temperature Specific volume Humidity ratio Enthalpy Note: this condition is a typical indoor design condition for air conditioning load calculations and control
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EML 4930 LECTURE 9 H. A. . . Ingley PhD,PE
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EML 4600 LECTURE 1 PSYCHROMETRICS: Reading the Chart Example: 62.5 deg F wet bulb 28.16 btu/lbm dry air 55.13 deg F dew point 64.92 grains/lbm dry air 13.68 cu.ft./lbm dry air See also McQuay website for additional psychrometric software H. A. . . Ingley PhD,PE
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EML 4600 LECTURE 1 PSYCHROMETRICS: Mixing Process Mixing Box Return Air Ventilation Air Mixed Air to Process
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EML 4600 LECTURE 1 PSYCHROMETRICS: Mixing Process Plot on psyc. chart the two points representing the conditions of the two conditions to mix. Connect the two points with a line (condition line, this
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psychrometrics[1] - EML 4600 LECTURE 1 Properties of Moist...

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