Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
For airflow loops, you can only specify a pressure rise across the fan and it's corresponding efficiency. EnergyPlus is not able to calculate the operating point of the fan based on a fan curve and air system curve.
For liquid loops, you can specify a pressure drop curve for any liquid loop branch. You can also set a pump curve for any pumps in your system. If you do this the pump energy consumption will be calculated based on the operating point (pressure and flow) of the pump as specified by the system and pump curves. To use this feature, you must set the Pressure Simulation Type in the PlantLoop object to "LoopFlowCorrection".
| | 2 | No.2 Revision |
For airflow loops, you can only specify a pressure rise across the fan and it's corresponding efficiency. EnergyPlus is not able to calculate the operating point of the fan based on a fan curve and air system curve.
For liquid loops, you can specify a pressure drop curve for any liquid loop branch. You can also set a pump curve for any pumps in your system. If you do this the pump energy consumption will be calculated based on the operating point (pressure and flow) of the pump as specified by the system and pump curves. To use this feature, you must set the Pressure Simulation Type in the PlantLoop object to "LoopFlowCorrection".
For more information on how the loop flow correction is calculated, you can read this section of the Engineering Reference.
