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4 cards from this section. Quick, good the night before a test.
What does enthalpy measure in the context of air conditioning?
Focus on the concept of heat in air.
Define dry bulb temperature.
Think of how we measure temperature normally.
What is enthalpy in HVAC contexts?
Focus on total energy in the air.
True or False: Humidity can increase the enthalpy of air.
Consider how moisture affects heat content.
A building requires cooling from 30°C at 60% relative humidity to a comfortable 22°C. Calculate the enthalpy change and energy required for a 100kg air flow.
Use the psychrometric chart to find the enthalpy values for 30°C and 22°C.
During a summer day, the outside air is 37°C and 50% RH. Describe how you would use enthalpy to design an efficient cooling system for this environment.
Use the chart to guide HVAC equipment choices and calculate energy needs.
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