HVAC system design
Tuesday, July 21, 2020
Depending on the building and its geographic location, there are several techniques for specifying HVAC systems in nonresidential buildings. A new or existing building each has its own requirements, and mechanical engineers must understand the client’s needs, the codes and standards, humidification/dehumidification needs, energy efficiency goals and the specific building requirements to successfully design a system.
Based on the most recent Consulting-Specifying Engineer research, the top three HVAC products/systems most specified are:
- Air handlers.
- Fans, air movement.
- Rooftop units.
There are many factors to consider when choosing and designing HVAC systems for buildings. Those decisions ultimately influence how energy-efficient the building is. The major factors to optimize for energy efficiency are ventilation, zone control, heat recovery and operations.
- Learn about ASHRAE, International Mechanical Code and other guidelines that drive HVAC system design and specifications.
- Understand HVAC design strategies, and the various products and systems available. Know the basics of how building automation systems and controls are integrated into this design.
- Consider energy-efficiency goals, and what HVAC products or systems can help achieve them.
Review commercial buildings example design strategies.