Fans provide airflow in HVAC systems by adding mechanical energy to air. Performance is characterized by flow rate, pressure rise, power, and efficiency on fan curves.
Governing FormulaP = Q * DeltaP / eta_fan
Knowledge Check
10 Questions
1.What is the primary purpose of fans?
2.Which practice improves reliability when analyzing fans?
3.What is a common engineering concern in fans?
4.Why are psychrometric properties used in fans?
5.What should be compared when validating a fans result?
6.What can happen when system parameters are poorly selected in fans?
7.Which engineering habit is important when documenting fans?
8.What does higher system efficiency usually indicate in fans?
9.Why should physical engineering judgment still be applied to fans results?
10.Which factor can most directly affect the performance of fans?