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  2. Psychrometrics - Wikipedia

    en.wikipedia.org/wiki/Psychrometrics

    A psychrometric chart is a graph of the thermodynamic parameters of moist air at a constant pressure, often equated to an elevation relative to sea level. The ASHRAE-style psychrometric chart, shown here, was pioneered by Willis Carrier in 1904. [10] It depicts these parameters and is thus a graphical equation of state. The parameters are:

  3. Psychrometric constant - Wikipedia

    en.wikipedia.org/wiki/Psychrometric_constant

    The psychrometric constant relates the partial pressure of water in air to the air temperature. This lets one interpolate actual vapor pressure from paired dry and wet thermometer bulb temperature readings.

  4. File:Psychrometric chart - PMV method.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Psychrometric_chart...

    English: This psychrometric chart represents the acceptable combination of air temperature and humidity values, according to the PMV/PPD method in the ASHRAE 55-2010 Standard. The comfort zone in blue represents the 90% of acceptability, which means the conditions between -0.5 and +0.5 PMV, or PPD < 10%.

  5. Thermal comfort - Wikipedia

    en.wikipedia.org/wiki/Thermal_comfort

    The results are displayed on a psychrometric or a temperature-relative humidity chart and indicate the ranges of temperature and relative humidity that will be comfortable with the given the values input for the remaining four parameters. [44] The PMV/PPD model has a low prediction accuracy. [45]

  6. ASHRAE 55 - Wikipedia

    en.wikipedia.org/wiki/ASHRAE_55

    The graphic method utilizes an overlay on a psychrometric chart to indicate the operative temperatures and humidity at which thermal comfort is achieved in the winter (1.0 clo) and summer (0.5 clo). It is based on the Predicted Mean Vote (PMV) model. [4]

  7. Wet-bulb temperature - Wikipedia

    en.wikipedia.org/wiki/Wet-bulb_temperature

    The wet-bulb temperature is the lowest temperature that may be achieved by evaporative cooling of a water-wetted, ventilated surface.. By contrast, the dew point is the temperature to which the ambient air must be cooled to reach 100% relative humidity assuming there is no further evaporation into the air; it is the temperature where condensation (dew) and clouds would form.

  8. A Beginner’s Guide to Reading a Birth Chart - AOL

    www.aol.com/beginner-guide-reading-birth-chart...

    A birth chart will show the snapshot of where each planet is in the sky, but then within this snapshot, the sky will be divided up into 12 equal slices for the 12 zodiac signs, so every planet ...

  9. Plot (graphics) - Wikipedia

    en.wikipedia.org/wiki/Plot_(graphics)

    Very complex graph: the psychrometric chart, relating temperature, pressure, humidity, and other quantities. Non-rectangular coordinates: the above all use two-dimensional rectangular coordinates ; an example of a graph using polar coordinates , sometimes in three dimensions, is the antenna radiation pattern chart, which represents the power ...