What is the application of psychrometric chart?
What is the application of psychrometric chart?
A psychrometric chart presents physical and thermal properties of moist air in a graphical form. It can be very helpful in troubleshooting and finding solutions to greenhouse or livestock building environmental problems.
How can we use a psychrometric chart to help us with design?
Psychrometric charts show temperature vs. humidity, and can be used to express human thermal comfort, design strategies, and energy requirements for those strategies.
What are the components of psychrometric chart?
What is a Psychrometric Chart? Overview of Components
- Dry Bulb (DB) Temperature Lines: The dry bulb temperature scale is shown along the base of the shoe shaped psychrometric chart forming the sole.
- Moisture Content:
- Wet Bulb (WB) Temperature Lines:
- Dew Point (DP) Temperature Lines:
What is psychrometric chart in air conditioning?
Psychrometric chart is one of the chart that is commonly used in solving HVAC problems. The properties of air such as wet bulb temperature, dry bulb temperature, dew point temperature, relative humidity, humidity ratio, specific enthalphy and specific volume are shown on this chart.
Which are the 5 factors indicated on a psychrometric chart?
1. Introduction
- dry bulb temperature.
- wet bulb temperature (also known as saturation temperature)
- dew point temperature.
- relative humidity.
- moisture content (also known as humidity ratio)
- enthalpy (also known as total heat)
- specific volume (the inverse of density)
What is psychrometric chart in HVAC?
What is the importance of psychrometry?
Good understanding of psychrometrics is essential because: Psychrometric analysis can be used to predict changes in the environment when the amount of heat and/or water in the air changes. Psychrometric analysis is crucial in accurately computing the volume flow rates of air through the air-conditioning ducts.
What are the important terms in psychrometric chart?
Moisture Content and Humidity Ratio – x The moisture content of air is expressed as the weight of water vapor per unit weight of dry air (lbH2O/lbair, kgH2O/kgair). Humidity ratio is indicated along the right-hand axis in psychrometric charts.
What is psychometry in refrigeration?
Psychrometry is the study related to the thermodynamic properties of wet air (mixture of dry air and water vapor), such as temperature, moisture, enthalpy and specific volume. All of those properties can be visualized and associated on the Psychrometric chart: PROPERTIES: Specific Volume.
What are the properties of psychrometric chart?
Seven properties of atmospheric air are shown on the psychrometric chart. These properties are: dry bulb temperature, wet bulb temperature, dew point, humidity ratio, relative humidity, specific volume, and specific enthalpy.
How does a psychrometer work?
Psychrometers. A psychrometer measures humidity by taking both a wet-bulb and a dry-bulb temperature reading. With those two values known, the other properties of the air, including its moisture content, can be determined by computation or by reading a psychrometric chart.
What is psychrometric chart in air-conditioning?