Cooling Tower Capacity Formula:
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Definition: This calculator determines the cooling tower capacity in tons based on the heat load in BTU/h.
Purpose: It helps HVAC engineers and technicians properly size cooling towers for various applications.
The calculator uses the formula:
Where:
Explanation: The heat load is divided by 12,000 BTU/h (equivalent to 1 ton of cooling) to determine the required cooling tower capacity.
Details: Proper capacity calculation ensures efficient cooling system operation, prevents under-sizing or over-sizing, and optimizes energy consumption.
Tips: Enter the heat load in BTU/h. The value must be > 0. The result shows the equivalent cooling tower capacity in tons.
Q1: Why 12,000 BTU/h equals 1 ton?
A: This comes from the heat absorbed by melting 1 ton of ice in 24 hours, which is approximately 12,000 BTU/h.
Q2: How do I find the heat load (Q)?
A: Heat load can be calculated from the system specifications or measured using temperature difference and flow rate.
Q3: Does this account for system inefficiencies?
A: No, this is the theoretical capacity. In practice, you may need additional capacity to account for inefficiencies.
Q4: What's the difference between cooling tower tons and refrigeration tons?
A: They both use the same ton measurement (12,000 BTU/h) but apply to different systems.
Q5: Should I add a safety factor to the calculated capacity?
A: Yes, typically 10-20% additional capacity is recommended for safety margins and future expansion.