![]() ![]() It displays various air properties, such as dry-bulb temperature, wet-bulb temperature, humidity ratio, and specific volume, on a set of intersecting axes. Since Carrier's contributions, the psychrometric chart has been refined and expanded upon by various researchers, organizations, and standards bodies such as ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) to become the essential tool it is in the HVAC industry today.ġ) Definition: The psychrometric chart is a graphical representation of the thermodynamic properties of moist air. His work revolutionized the understanding of air conditioning and provided the foundation for modern HVAC design and engineering practices. In 1904, Carrier created a chart to analyze and represent the properties of air in different states of humidity and temperature. The modern psychrometric chart, as we know it today, was primarily developed by Willis Carrier, an American engineer and the founder of Carrier Corporation, a prominent HVAC company. Understanding psychrometrics has been a game-changer in my career, so I'm happy to share the attached Insight Partners psych chart. The word psychrometrics comes from the Greek psuchron meaning "cold,” and metron meaning "means of measurement."
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