What is the specific heat of air in BTUs per pound per degree Fahrenheit?

The specific heat of air is a crucial value used in HVAC calculations, particularly when determining how much energy is needed to raise the temperature of air. The specific heat capacity of dry air at constant pressure is approximately 0.24 BTUs per pound per degree Fahrenheit. This value represents the amount of heat required to increase the temperature of one pound of air by one degree Fahrenheit, making it essential for assessing heating and cooling loads in HVAC systems.

Understanding this value is vital for HVAC professionals, as it helps in calculating energy efficiency and optimizing system performance. By knowing the specific heat, technicians can accurately size heating and cooling systems, ensuring that they meet the thermal demands of a space effectively.