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Is the Chilled water cooling coil total load same as the chiller capacity?

asked 2020-02-03 23:05:03 -0600

Prasanth M gravatar image

updated 2020-02-08 12:01:31 -0600

Hi group, I am new to EnergyPlus, is chiller capacity same as the chilled water cooling coil total load?

Please clear my doubt.

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answered 2020-02-04 07:29:36 -0600

The report variable Cooling Coil Total Cooling Rate is actually the air-side total cooling rate and should be equal to the water-side load on the plant imposed by the water coil. You can test this by calculating the water-side energy rate using the mass flow rate of the water coil outlet node (using the report variable System Node Mass Flow Rate) and multiplying by the water-side enthalpy difference between water coil inlet and outlet node ( difference of System Node Enthalpy at water coil inlet and outlet). This load is passed to the plant and is added to any pump heat or piping losses (may be 0 if not modeled) to equal the total chiller load (Chiller Evaporator Cooling Rate).

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Thank you Mr.Richard Raustad for clearing my doubt.

Prasanth M gravatar imagePrasanth M ( 2020-02-05 00:54:49 -0600 )edit

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Asked: 2020-02-03 23:05:03 -0600

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Last updated: Feb 04