Heating, Ventilation and Air Conditioning

In a centralized heating, ventilation and air-conditioning (HVAC) system, low-side components such as fans, ducts, heat recovery and an air-side economiser are used to deliver and managing cool air to spaces. Energy savings potential from an air-side economizer and heat recovery based on dry bulb temperature and enthalpy for a particular location are discussed in this chapter. This chapter also covers the use of demand control ventilation to limit outside air quantities based on zone air carbon dioxide (CO₂) concentration to save energy.