Podcast
Questions and Answers
What is the primary reason for increasing the flow area in a heat exchanger?
What is the primary reason for increasing the flow area in a heat exchanger?
- To decrease the number of parallel flow circuits
- To increase the thermal effectiveness of the heat exchanger
- To increase the pumping power required
- To reduce the tube-side velocity and accommodate higher friction characteristics (correct)
What is the benefit of maintaining a constant exchanger flow rate in the PEC analysis?
What is the benefit of maintaining a constant exchanger flow rate in the PEC analysis?
- It avoids the penalty of operating at higher thermal effectiveness (correct)
- It increases the pumping power required
- It reduces the thermal effectiveness of the heat exchanger
- It decreases the heat transfer coefficient
What is the purpose of developing algebraic relations in the PEC analysis?
What is the purpose of developing algebraic relations in the PEC analysis?
- To calculate the performance improvement for the PEC cases (correct)
- To compare the performance of different heat exchangers
- To quantify the heat transfer coefficient
- To determine the optimal heat exchanger design
What is the advantage of referencing the algebraic relations to a smooth surface operating at the same fluid temperature?
What is the advantage of referencing the algebraic relations to a smooth surface operating at the same fluid temperature?
What is the total tube-side surface area in the heat exchanger?
What is the total tube-side surface area in the heat exchanger?
What is the primary purpose of using a greater number of parallel flow circuits in the PEC analysis?
What is the primary purpose of using a greater number of parallel flow circuits in the PEC analysis?
What is the benefit of using enhanced tubes in the PEC analysis?
What is the benefit of using enhanced tubes in the PEC analysis?
What is the purpose of the PEC analysis in the context of heat exchanger design?
What is the purpose of the PEC analysis in the context of heat exchanger design?
What is the relationship between the number of tubes in the flow passage and the total tube-side surface area?
What is the relationship between the number of tubes in the flow passage and the total tube-side surface area?
What is the primary consideration in the design of a condenser using the PEC analysis?
What is the primary consideration in the design of a condenser using the PEC analysis?
