Buildings.Fluid.Movers.Examples.Data
Package containing data for examples
Information
This package contains data that are exclusively useful for the example models.
Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 EnglanderNorford1992
|
Data for the supply fan in Englander and Norford (1992) |
Buildings.Fluid.Movers.Examples.Data.EnglanderNorford1992
Data for the supply fan in Englander and Norford (1992)
Information
Performance data for the supply fan used in Englander and Norford (1992) (figure below). See the documentation of Buildings.Fluid.Movers.Data.Fans.Greenheck for the methods used to extract data.
References
Englander, S. L., and L. K. Norford. "Saving fan energy in VAV systems- part 1: analysis of a variable-speed-drive retrofit." ASHRAE Winter Meeting, Anaheim, CA, USA, 01/25-29/92. 1992.
Extends from Buildings.Fluid.Movers.Data.Generic (Generic data record for movers).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Power computation | |||
| HydraulicEfficiencyMethod | etaHydMet | Buildings.Fluid.Movers.BaseC... | Efficiency computation method for the hydraulic efficiency etaHyd |
| MotorEfficiencyMethod | etaMotMet | if powerOrEfficiencyIsHydrau... | Efficiency computation method for the motor efficiency etaMot |
| Boolean | powerOrEfficiencyIsHydraulic | true | =true if hydraulic power or efficiency is provided, instead of total |
| efficiencyParameters | efficiency | Total or hydraulic efficiency vs. volumetric flow rate | |
| efficiencyParameters | motorEfficiency | Motor efficiency vs. volumetric flow rate | |
| efficiencyParameters_yMot | motorEfficiency_yMot | Motor efficiency vs. part load ratio yMot, where yMot = WHyd/WMot_nominal | |
| peak | peak | Volume flow rate, pressure rise, and efficiency (either total or hydraulic) at peak condition | |
| Power | WMot_nominal | if max(power.P) > Modelica.C... | Rated motor power [W] |
| Efficiency | etaMot_max | 0.7 | Maximum motor efficiency [1] |
| Motor heat rejection | |||
| Boolean | motorCooledByFluid | true | If true, then motor heat is added to fluid stream |
| Normalized speeds | |||
| Real | speed_nominal | 1 | Nominal rotational speed for flow characteristic [1] |
| Real | constantSpeed | 1 | Normalized speed set point, used if inputType = Buildings.Fluid.Types.InputType.Constant [1] |
| Real | speeds[:] | {1} | Vector of normalized speed set points, used if inputType = Buildings.Fluid.Types.InputType.Stages [1] |
Modelica definition
record EnglanderNorford1992 "Data for the supply fan in Englander and Norford (1992)"
extends Buildings.Fluid.Movers.Data.Generic(
etaHydMet=Buildings.Fluid.Movers.BaseClasses.Types.HydraulicEfficiencyMethod.Power_VolumeFlowRate,
power(V_flow={5.44049459041731, 8.71715610510046, 15.6826378155589,
19.9484801648634, 22.5450798557444, 25.6362699639361,
27.8619268418341, 29.8402885110767, 32.9314786192684,
36.764554353426, 40.1648634724368, 42.9057187017001},
P={ 18642.5, 22371, 29828,
34652.679, 37285, 39149.25,
39454.987, 38612.346, 37285,
35912.912, 35308.895, 36002.396}),
pressure(V_flow={5.44049459041731, 8.71715610510046, 15.6826378155589,
19.9484801648634, 22.5450798557444, 25.6362699639361,
27.8619268418341, 29.8402885110767, 32.9314786192684,
36.764554353426, 40.1648634724368, 42.9057187017001},
dp={ 1430.48245810056, 1404.41681564246, 1332.4756424581,
1280.3443575419, 1224.0425698324, 1128.12100558659,
1034.28469273743, 909.169608938547, 702.72972067039,
433.732290502792, 197.05625698324, 6.25575418994417}));
end EnglanderNorford1992;