In most fan systems a single fan is selected for the required system design rating. Various methods of control are employed such as dampers, variable inlet vanes, variable pitch blades, or variable ...

Editor’s note: This is the second in a three-part series that began in the March 12 issue with a discussion of heat reclaim in three-way valve operation. Heat reclaim can be accomplished with either a ...

This is a preview. Log in through your library . Abstract A series (parallel) system consisting of n stochastically independent components is considered. The system works if, and only if, each ...