Psychrometrics 

Psychrometrics is the study of air-water vapor mixtures. The main goal of psychrometrics is to understand how temperature and humidity affect the properties of air-water vapor mixtures. These properties include moisture content, density, specific heat, and latent heat. By understanding these properties, engineers can better control the environment inside a building.

Building management systems (BMS) are computer-based systems that control and monitor the mechanical and electrical equipment in a facility. A BMS typically includes controls for HVAC (heating, ventilation, and air conditioning), lighting, security, fire safety, and other systems. The term “psychrometrics” was coined by William Rankine in 1859. It comes from the Greek words “psyche” (meaning soul or mind) and “metron” (meaning measure).