Applied Thermodynamics | Psychrometrics and Air Conditioning Processes by Pavan | Learn Smarter
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Psychrometrics and Air Conditioning Processes

The chapter focuses on psychrometrics and air conditioning processes, detailing the properties of dry and moist air, including temperature metrics and humidity measures. It discusses the psychrometric chart's function in depicting air properties and outlines basic air conditioning processes such as heating, cooling, humidification, and dehumidification. Key concepts like dew point and saturation are emphasized for their relevance in HVAC system design and moisture management.

Sections

  • 1

    Properties Of Dry And Wet Air

    This section discusses the characteristics and properties of dry air, wet air, and the various thermodynamic properties of moist air.

    Learning Practice

  • 1.1

    Dry Air

    Dry air is a mixture of gases that primarily includes nitrogen and oxygen, and is treated as a single gas in thermodynamic calculations.

    Learning Practice

  • 1.2

    Water Vapour (Moisture)

    This section covers the properties and significance of water vapor in air and its role in psychrometrics and air conditioning processes.

    Learning Practice

  • 1.3

    Moist Air

    This section discusses the properties and characteristics of moist air, including its composition, important thermodynamic properties, and relevance in psychrometric analysis.

    Learning Practice

  • 1.4

    Important Properties

    This section discusses the important properties of moist air, including dry-bulb temperature, wet-bulb temperature, dew point temperature, relative humidity, humidity ratio, and enthalpy.

    Learning Practice

  • 2

    Psychrometric Chart

    The Psychrometric Chart is a graphical tool that represents the thermodynamic properties of moist air, essential for understanding HVAC processes.

    Learning Practice

  • 2.1

    Uses Of The Chart

    The psychrometric chart serves as a valuable tool to analyze and visualize the thermodynamic properties of moist air, particularly in HVAC system design.

    Learning Practice

  • 3

    Basic Air Conditioning Processes

    This section covers the fundamental processes involved in air conditioning, including sensible heating, humidification, cooling, and dehumidification.

    Learning Practice

  • 3.1

    Sensible Heating/cooling

    This section discusses sensible heating and cooling in the context of air conditioning, focusing on temperature changes without affecting humidity.

    Learning Practice

  • 3.2

    Humidification/dehumidification

    This section covers the concepts of humidification and dehumidification, including the role of moisture content in air conditioning processes.

    Learning Practice

  • 3.3

    Cooling And Dehumidification

    This section discusses the cooling and dehumidification process in HVAC systems, focusing on the properties of moist air and their significance in air conditioning.

    Learning Practice

  • 3.4

    Heating And Humidification

    This section explores the principles of heating and humidification in air conditioning, focusing on the interactions between temperature, moisture, and air properties.

    Learning Practice

  • 4

    Dew Point And Saturation

    This section defines dew point temperature and its importance in air conditioning and moisture management.

    Learning Practice

  • 4.1

    Dew Point Temperature

    The Dew Point Temperature is the temperature at which air becomes saturated with moisture, leading to condensation.

    Learning Practice

References

Module III_ Psychrometrics and Air Conditioning Processes.pdf

Class Notes

Memorization

What we have learnt

  • Moist air is a mixture of d...
  • The psychrometric chart is ...
  • Key processes in air condit...

Final Test

Revision Tests