Practice Enthalpy (5.1.6) - Psychrometry - Refrigeration and Air Conditioning
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Enthalpy

Practice - Enthalpy

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does enthalpy measure in the context of air conditioning?

💡 Hint: Focus on the concept of heat in air.

Question 2 Easy

Define dry bulb temperature.

💡 Hint: Think of how we measure temperature normally.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is enthalpy in HVAC contexts?

Heat content
Air density
Air pressure

💡 Hint: Focus on total energy in the air.

Question 2

True or False: Humidity can increase the enthalpy of air.

True
False

💡 Hint: Consider how moisture affects heat content.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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.

💡 Hint: Use the psychrometric chart to find the enthalpy values for 30°C and 22°C.

Challenge 2 Hard

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.

💡 Hint: Use the chart to guide HVAC equipment choices and calculate energy needs.

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Reference links

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