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CFM to TR Conversion Formula:
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The CFM to TR conversion calculates tons of refrigeration from cubic feet per minute airflow. This conversion is essential in HVAC (Heating, Ventilation, and Air Conditioning) systems to determine cooling capacity requirements.
The calculator uses the conversion formula:
Where:
Explanation: This formula converts airflow rate (CFM) to cooling capacity in tons, based on standard air properties and the relationship between airflow and heat removal capacity.
Details: Accurate conversion from CFM to TR is crucial for proper HVAC system design, sizing equipment correctly, ensuring adequate cooling capacity, and optimizing energy efficiency in refrigeration and air conditioning systems.
Tips: Enter CFM value in cubic feet per minute. The value must be positive and valid. The calculator will automatically compute the equivalent tons of refrigeration.
Q1: What does CFM stand for?
A: CFM stands for Cubic Feet per Minute, which measures the volume of air flow in cubic feet that passes a fixed point in one minute.
Q2: What is a ton of refrigeration (TR)?
A: One ton of refrigeration equals 12,000 BTU per hour, which is the amount of heat required to melt one ton of ice in 24 hours.
Q3: Is this conversion accurate for all air conditions?
A: This conversion assumes standard air conditions (0.075 lb/ft³ density). For non-standard conditions (high altitude, temperature variations), additional factors may be needed.
Q4: When is this conversion typically used?
A: This conversion is commonly used in HVAC system design, duct sizing, air handler selection, and cooling load calculations for commercial and industrial applications.
Q5: Can this calculator be used for residential HVAC systems?
A: Yes, the same conversion principle applies to residential systems, though professional HVAC calculations should consider additional factors like humidity, insulation, and building orientation.