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Why Should You Take This Psychrometrics and HVAC - Everything You Need To Know - Online Anytime Course?
Do you want to master HVAC? Do you want to be a great energy-modeler? You must know psychrometrics. Take this Psychrometrics and HVAC - Everything You Need To Know online anytime course to learn about HVAC (heating, ventilating, and air conditioning) and the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality in any HVAC setting.
Psychrometrics or psychrometry or hygrometry are terms used to describe the field of engineering concerned with the determination of physical and thermodynamic properties of gas-vapor mixtures.
The Following Topics Will Be Covered:
Lesson 1.1 - 1.3 provides a quick review on the fundamental properties necessary to understand the principles of psychrometrics. These properties include mass, force, weight, density, specific volume, pressure, enthalpy, sensible and latent heat, and the basic properties of moist air. Lesson 1 concludes with an introduction to the Psychrometric Chart and it’s lines of constant properties.
Lesson 2.1 - 2.3 covers air conditioning processes on a psychrometric chart, the air mixing process, and concludes with a number of sample problems using the psychrometric chart.
Lesson 1.1: This video reviews mass, force, weight, density, specifc volume, pressure and enthalpy. The lesson concludes with a review of sensible and latent heat.
• Mass, Force, Weight, Density and Specifc Volume
• Pressure
• Enthalpy
• Sensible Heat and the Sensible Heat Equation
• Latent Heat and the Enthalpy Equation 2
Lesson 1.2– Properties of Moist Air
This video covers the basic properties of moist air that are shown on the Psychrometric Chart.
• Dry Bulb and Wet Bulb Temperatures
• Dewpoint
• Humidity Ratio and Relative Humidity
• Specifc Volume and Density
• Specifc Enthalpy
Lesson 1.3 – The Psychrometric Chart
The video lesson introduces the Psychrometric Chart and the lines of constant properties that are shown on the Chart.
• Lines of Constant Properties
• How to “Read” a Psychrometric Chart
• Standard Air
• Charts for Diferent Altitudes
Lesson 2.1 – Air Conditioning Processes on a Psychrometric Chart
This video shows how common air conditioning processes are illustrated on the Psychrometric Chart and how the Chart can be used for determining changes in air properties.
• Defnition of “Process”
• Process #1: Sensible Heat Change
• Process #2: Latent Heat Change
• Process #3: Combination Sensible and Latent Heat Change
• Process #4: Evaporative Process
Lesson 2.2 –The Air Mixing Process
In this video, the air mixing process is presented along with how to determine air conditioning properties when two air streams are mixed.
• Mixing of Two Air Streams
• Calculating Mixed Air Properties
• Calculating the % of Outside Air in an Air Handling Unit
Lesson 2.3 – Sample Problems Using the Psychrometric Chart
• Example #1: Sensible Heat Change
• Example #2: Latent Heat Change
• Example #3: Combined Sensible and Latent Heat Change
• Example #4: Evaporative Cooling
• Example #5: Mixed Air Problem
• Example #6: OSA Calculation
• Example #7: Derive the Conditions for “Standard Air”