BTU Meter / Net Heat Metering

In almost all Cooling applications chilled water is used. One is interested in knowing the amount of energy extracted from the cooling media and not the flow rate. This involves the measurement of flow of the cooling medium, the inlet and outlet temperature and then using temperature difference to calculate the Net Heat transferred.
Krohne Net Heat Meters (NHM) British Thermal Unit (BTU) meters use accurately calibrated Electromagnetic Flowmeter, Matched pair of temperature sensors and computing unit to calculate Net Heat consumed.
Net Heat = Qm X Enthalpy Difference (HT1 – HT2)
Advantages over Conventional BTU metering systems:
In the conventional systems billing is done based on the area acquired by each tenant. This leads to heavy losses to the service provider or the tenant as the tenant pays according to the area acquired and actual consumption of energy is not calculated.