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Issue3492 direct evaporative cooler #3755

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This closes #3492.

karthikeyad-pnnl and others added 30 commits September 1, 2020 11:17
Merge lbl master into pnnl master
…veCooler

Issue3492 direct evaporative cooler
parameter Modelica.Units.SI.Length dep
"Depth of the rigid media evaporative pad";

parameter Real effCoe[11] = {0.792714, 0.958569, -0.25193, -1.03215, 0.0262659,
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Can the user change the effCoe[:]? Is it from the E+ reference? If it shall not be changed, make it to be protected.


Buildings.Controls.OBC.CDL.Interfaces.RealInput V_flow(
final unit="m3/s",
displayUnit="m3/s",
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no need to have the displayUnit as it is same as unit.


Buildings.Controls.OBC.CDL.Interfaces.RealOutput dmWat_flow(
final unit="kg/s",
displayUnit="kg/s",
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remove displayUnit

@JayHuLBL
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@karthikeyad-pnnl See below comments:

  1. Avoid using the temperature sensor to measure the instrem fluid temperature as it will introduce additional states, as below the instance senTem, senTemWetBul:
    Direct
    You may use the instream() function, see for example in model Buildings.Fluid.HeatExchangers.DryCoilCounterFlow.

  2. Also, it's better to use the mass flow rate sensor, rather than volume flow rate sensor.

  3. Check if we can extent the base class Buildings.Fluid.Interfaces.TwoPortHeatMassExchanger, as it's being used in Buildings.Fluid.Humidifiers.Humidifier_u.

@JayHuLBL
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@karthikeyad-pnnl The reference results have been updated. I wonder if it is still a draft PR? Are you working on any other issues for this PR?

@JayHuLBL
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@karthikeyad-pnnl Can this PR become formal PR?

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Evaporative cooler models for SPAWN
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