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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for LMTD?
💡 Hint: Focus on the definition of LMTD and its components.
Question 2
Easy
What does Q represent in the LMTD equation?
💡 Hint: Think about what is being calculated in heat exchangers.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does LMTD stand for?
- Log Mean Temperature Difference
- Linear Mean Temperature Difference
- Limited Mean Temperature Difference
💡 Hint: Focus on the full meaning of LMTD.
Question 2
Is LMTD used when both ends temperature differences are constant?
- True
- False
💡 Hint: Remember when LMTD is applicable.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a heat exchanger to cool 1,000 liters of fluid from 90°C to 40°C using water at 20°C. Apply LMTD and calculate reasonable $$U$$ and $$A$$ values.
💡 Hint: Use all temperature values to set up the equations and calculate stepwise.
Question 2
A heat exchanger has a capacity ratio $$C_r = 5$$, given inlet and outlet temperatures, determine the effectiveness and discuss its implications.
💡 Hint: Link flow arrangement types and effectiveness impacts; compare against constant value requirements.
Challenge and get performance evaluation