Issue3538 thermal wheel #3909
Issue3538 thermal wheel #3909
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| Data record that describes wheel speed ratio <code>uSpe</code> versus | ||
| heat exchange effectiveness corrections <code>epsCor</code>, i.e., the ratio of the heat exchange effectiveness | ||
| to that when the <code>uSpe</code> is <i>1</i>. | ||
| The wheel speed ratio <code>uSpe</code> must be increasing, |
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The elements of the vector <code>uSpe</code> should be in ascending order,
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Update the model doc as suggested.
| @@ -0,0 +1,26 @@ | |||
| within Buildings.Fluid.HeatExchangers.BaseClasses.VariableSpeedThermalWheels.BaseClasses.Characteristics; | |||
| record motorEfficiencyParameters | |||
| "Record for motor efficiency parameters vs. wheel speed ratio" | |||
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Parameters for defining motor efficiency at different wheel speed ratio
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Update the model doc as suggested.
| @@ -0,0 +1,27 @@ | |||
| within Buildings.Fluid.HeatExchangers.BaseClasses.VariableSpeedThermalWheels.BaseClasses.Characteristics; | |||
| record heatExchangerEffectivenessParameters | |||
| "Record for heat exchanger effectiveness correction vs. wheel speed ratio" | |||
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Parameters for defining heat exchanger effectiveness at different wheel speed ratio
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Update the model doc as suggested.
| parameter Real uSpe[:](each min=0) | ||
| "Wheel speed ratio"; | ||
| parameter Real epsCor[:](each max=1) | ||
| "Correction of the heat exchange effectiveness under a given speed ratio"; |
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Correction of the heat exchange effectiveness at a given speed ratio
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Update the model doc as suggested.
| </p> | ||
| <ul> | ||
| <li> | ||
| wheel speed ratio versus motor percent full-load |
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Better put the wheel speed ratio at the end, so it will be like:
motor efficiency versus wheel speed ratio,
sensible heat exchange effectiveness corrections versus wheel speed ratio,
...
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Update the model doc as suggested.
| <p> | ||
| where <code>P_nominal</code> is the nominal wheel power consumption, | ||
| <code>uSpe</code> is the wheel speed ratio, | ||
| and the <code>eta</code> is the motor percent full-load efficiency, i.e., |
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need a clear explanation of the eta, what is it? is it eff(uSpe=x) / eff(uSpe=1), where the eff(uSpe=x)is the motor efficiency when the speed ratio isx`?
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Added the detailed explanation as suggested.
@JayHuLBL I believe I have addressed all your comments. Could you please resume your review? |
Buildings.Fluid.HeatExchangers.BaseClasses.VariableSpeedThermalWheelsfor accounting for the impacts of wheel speed ratios on the wheel performanceBuildings.Fluid.HeatExchangers.ThermalWheels.Sensible.Examples.SpaceCoolingand
Buildings.Fluid.HeatExchangers.ThermalWheels.Latent.Examples.SpaceCooling