Plant engineering calculator · Updated 17 September 2026
Chiller Delta-T Calculator — Cooling Load, Flow & Low-ΔT Diagnosis
Solve chilled-water ΔT, cooling load or design flow from any consistent pair and report tons plus a low-ΔT comparison against a target.
Inputs
Live results
- Measured ΔT 5 K
- Cooling load 580.22611 kW
- Cooling load 164.98447 TR
- Flow at target ΔT 83.333333 m³/h
- ΔT vs target -16.666667%
Formula
Q=ṁCpΔT.
Worked example
100 m³/h water with 5 K ΔT carries about 581 kW or 165 TR.
Assumptions and limits
- Uses user-entered density and Cp.
- Low-ΔT diagnosis should compare similar load and valve conditions.
FAQs
What does this Chiller Delta-T Calculator calculate?
Solve chilled-water ΔT, cooling load or design flow from any consistent pair and report tons plus a low-ΔT comparison against a target.
What should I verify before final design?
Verify measured operating data, fluid properties, equipment curves, safety margins and the applicable OEM or engineering standard.
Why are intermediate results shown?
They expose assumptions and make unit, load and operating-condition errors easier to catch.