Title 04. MEG - HVAC Systems v2.pdf ✅

Heating, Ventilation, and Airconditioning (HVAC) Systems

Why HVAC? The HVAC system is responsible for a significant share of the energy use. • Up to 35% of the total energy consumed in many building types • Many old facilities and buildings have HVAC systems that were designed and installed at early days when energy efficiency was not yet a priority Most HVAC systems are designed to meet the extreme load conditions rather than average conditions. Thus, most are oversized and not operating efficiently. Introduction Remember: Designers will not be held accountable for oversizing a system.
• The Heating, Ventilation, and Air Conditioning (HVAC) system is composed of motors, ducts, fans, controls, and heat exchanger units which delivers heated and cooled air to different areas of a controlled facility. • The purpose of the HVAC system is to add or remove heat and moisture in order to maintain the desired environmental conditions. • The HVAC system also provides ventilation and air movement even when no heating or heating load is present. • The system heats, cools, and filters the air. Introduction Source: Association of Energy Engineers