CED Engineering course PDF: 'Air Conditioning Psychrometrics (A.Bhatia)'

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About copyright in the CED Engineering course PDF for: 'Air Conditioning Psychrometrics' © A. Bhatia

DISCLAIMER: Please note that only selected example questions and their published answers have been quoted from this CED Engineering online course here as Webel "Snippet" pages for educational purposes and only for demonstrating the use of Mathematica and CoolProp for psychrometrics in this Webel tutorial trail. Only results tables and plots for these example problems are available on this Webel IT Australia site, the worked solutions are NOT reproduced or provided here on this site!

Students of psychrometrics should examine the 'Air Conditioning Psychrometrics PDF' from CED Engineering in full, attempt to solve the example problems, and consider attending their course.

To see applications of Mathematica to psychrometrics, and to learn about the Webel Psy library for Mathematica+CoolProp, please visit this Webel tutorial trail:

TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class

Snippets (quotes/extracts)

A sling psychrometer gives a dry-bulb temperature of 78°F and a wet-bulb temperature of 65°F. Determine other moist air properties from this information.

An air-conditioned room at sea level has an indoor design temperature of 75°F and a relative humidity of 50%. Determine the humidity ratio, enthalpy, density, dew point, and thermodynamic wet bulb temperature of the indoor air at design condition.

The dry bulb reading is 78°F and the wet bulb is 58°F. Using the chart determine the following values: Relative humidity; Dew Point; Absolute humidity; Specific volume; [Specific] enthalpy.

The dry bulb reading is 70°F and the wet bulb is 54°F. Using the chart determine the following values. Using the chart determine the following values: Relative humidity; Dew Point; Absolute humidity; Specific volume; [Specific] enthalpy.

The dry bulb reading is 85°F and the wet bulb is 60F. Using the chart determine the following values. Using the chart determine the following values: Relative humidity; Dew Point; Absolute humidity; Specific volume; [Specific] enthalpy.

Calculate the amount of sensible heat that must be added to 100lb of air at 85°F dry bulb and 75°F wet bulb to raise the temperature of air to 100°F dry bulb.

Determine the cooling required to sensibly cool 20,000 cfm of air from a temperature of 90 F and a relative humidity of 60% to a temperature of 75 F.

Ninety cubic-ft of lumber is dried at 140°F 'tdb' and 125.6°F 'twb'. The drying rate of the lumber is 5.68 lb of water per hour. If outside air is at 80.6°F 'tdb' and 80% relative humidity how much outside air is needed per min to carry away the moisture?

Determine the amount of sensible heat needed to increase the temperature of air from 50°F and 50% RH to 90°F.

How much moisture is added to 20 lb of air going from 50°F, 50% RH to 80°F, 60% RH?