Overview Psychrometrics, at its core, is an area of engineering investigating the moist properties of air. This type of cooler is extremely popular in hot, dry climates, and is popularly known as a Swamp Cooler. Other websites that we found interesting is that of Wikipedia on Psychrometrics. There is a recap of the technical terms introduced in this paper below. The major simplifying assumption in the construction of the chart is that the enthalpy of the mixture is assumed to be constant throughout the adiabatic saturation process described in Section a. Gatley, 16 The most relevant gases that psychrometrics examine are air and water vapor, as controlling a water vapor-saturated environment is important in the fields of air ventilation, humidification, hcart, meteorology, etc. Display a fully customizable psychrometric chart in both landscape and portrait modes. For this psychrometfic a Psychrometric Chart relating all the relevant variables was developed which is extremely useful for designing and evaluating air-conditioning and cooling tower systems. Purchase Understanding Psychrometrics, 3rd ed. The program on the CD allows the user to plot typical psychrometric processes and perform the psychromertic energy calculations on-screen, without having to first print out the individual charts. Want to teach an old Psychormetric dog some new tricks? The program can output a listing of points and processes in a tabular report with calculated properties and energy values for each.Ĭonclusion Experiment with chart at various intersections of humidity ratio and air temperature to perform your own calculations! Find the vertical line marked Thompson, 2 The technical nature of this early psychrometric chart is not very important for your understanding, as the modern psychrometric chart incorporates new variables, which will be explained later. Psychrometrics Made SimpleĪre you a heating and air conditioning professional? Find the point where the vertical dry-bulb line and the diagonal wet-bulb line intersect. What is the relative humidity? This chart possesses some features that would become a mainstay of modern psychrometric charts, such as dry bulb temperature on the horizontal axis, more commonly referred to as air temperature. Refer to the link: Refer to this example. If you do, you should probably know something about psychrometrics. 35 40 45 50 0,36 55 Carrier PSYCHROMETRIC CHART NORMAL.Ĭharg find the diagonal right-to-left line marked 70 degrees, and envision an imaginary line to the degrees vertical line.
▫ Use chart to analyze processes involving moist air.
W H Carrier, rational psychro- metric formulae, psychrometric chart, invention of centrifugal.
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