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High Pump Energy Consumption

Greetings,

I've defined 1 indirect absorption chiller loop and 1 condenser loop in my Openstudio model and I have configured it to be running in the summer for cold water to be provided to cooling coils.

When simulating my model, I am getting high pumps energy consumption during this period, which seem unreasonable. A plot of the mass flow rates for the chiller and condenser pumps is shown below:

image description

There seems to be very high values for the condenser pump (about 80 kg/s) compared to the chiller pump (about 4-6 kg/s). Both are Variable Speed Pumps and working intermittent.

Could anyone assist me to solve this issue of high pumps energy consumption ? I can provide my model files if needed upon request.

Thank you.

High Pump Energy Consumption

Greetings,

I've defined 1 indirect absorption chiller loop and 1 condenser loop in my Openstudio model and I have configured it to be running in the summer for cold water to be provided to cooling coils.

When simulating my model, I am getting high pumps energy consumption during this period, which seem unreasonable. A plot of the mass flow rates for the chiller and condenser pumps is shown below:

image description

There seems to be very high values for the condenser pump (about 80 kg/s) compared to the chiller pump (about 4-6 kg/s). Both are Variable Speed Pumps and working intermittent.

Could anyone assist me to solve this issue of high pumps energy consumption ? I can provide my model files if needed upon request.

Thank you.