Allow us to recommend this publication: 
Dampers and Airflow Control written by Laurence G Felker and Travis L Felker provided by ASHRAE Special Publications.
Fans, duct systems, duct elements (such as filters and coils), dampers, and actuators all work together to control airflow. This book provides the resources for building good judgement of the engineering principles needed to size, select, install, and adjust control dampers.
Here’s part of the contents covered in this book:
- Mechanical System Design and Airflow
- Dampers, Mixing, Geometry, and Pressure Loss
- Damper Pressure Losses
- Damper Proportional Flow Characteristics
- Diverting and Mixing Damper Pairs
- Multistage Damper Control
- Summary of Damper Characterization Methods
- Actuation
- Minimum Outdoor-Air Control Methods
- Space Pressurization Control Methods
- Coordination of Outdoor-Air Ventilation with Space Pressure
- Damper Installation
- Control Loops and Applications
- Balancing
- Control Systems
- Smoke Control
- Summary
This book: Dampers and Airflow Control book can be purchased at ASHRAE online.
[1] ISBN 978-1-933742-53-3 ©2009 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 1791 Tullie Circle, NE, Atlanta, GA 30329 www.ashrae.org