Posted inEngineering Metrology & Measurement
Posted inHVAC
Evaporative Cooling
Evaporative cooling is an adiabatic process, that is, there is no net heat loss or…
Posted inHVAC
Heating and Dehumidification (Chemical Dehydration)
Heating and Dehumidification, also referred to as “chemical dehydration” is seeing increasing use in modern…
Posted inHVAC
Cooling and Dehumidifying
When air is cooled below the dew point temperature, Tdewpoint, condensation occurs and moisture is…
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Governing Equation for Heating and Humidification
If the condition of the air is changing from state 1 to state 2, consider…
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Humidification (Heating or Cooling)
This is the process of introducing moisture into the airstream. In winter, humidification frequently is…
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Governing Equation for Sensible Heating and Cooling
Example Calculate the amount of sensible heat that must be added to 100lb of air…
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Sensible Heating
In HVAC systems, air is typically heated by passing it over a heating coil or…
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Sensible Cooling
Air dew point temperature Tdewpoint is the temperature when air is 100% saturated and water begins…
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Cooling and Heating
In HVAC systems, air is typically cooled by passing it over a cooling coil. Most…
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Measuring Vapour Pressure
Measuring vapour pressure is very difficult without complex laboratory instrumentation. However, it can be relatively…