Chilled Water ΔT Calculator
Reconcile measured flow and ΔT against rated coil duty. The fastest way to detect low-ΔT syndrome, control valve authority issues and fouled heat exchangers on site.
mc ΔT Energy Auditor
Energy Calculations
Result Panel
Governing Equation
Energy balance verification — used during witnessing to reconcile measured coil duty against design intent.
Applying On-Site Energy Reconciliation
Reconciling measured flow + ΔT against rated coil duty is the fastest way to detect low ΔT syndrome, control-valve hunting and fouled heat exchangers before they cascade into plant inefficiency.
Q = ṁ · cp · ΔT. For water at ~15 °C, cp = 4.187 kJ/kg·K. Enter any two of flow, ΔT or duty and the calculator solves the third.
A measured ΔT well below design (typically < 4 °C on 6 °C design plant) is the classic signature of low-ΔT syndrome — usually caused by control valve authority, oversized coils or bypasses left open after balancing.
Darcy-Weisbach head loss + indicative pump shaft power.
Supply airflow, coil face area and duct velocity from cooling load.
Indicative commissioning programme days from GFA + complexity.
Indicative NABERS Energy band from EUI for offices.