Multiple Airloops - Implement terminal unit sizing specs

NREL · Mar 2, 2017 · 5bc2139 · 5bc2139 · nrel-bot-3 · Mar 2, 2017
1 parent 9140751
commit 5bc2139
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Showing 5 changed files with 184 additions and 66 deletions.
diff --git a/src/EnergyPlus/DataSizing.hh b/src/EnergyPlus/DataSizing.hh
@@ -715,6 +715,11 @@ namespace DataSizing {
 		Real64 ReheatLoadMult; // multiplier for load in reheat coil UA calculation
 		Real64 DesCoolingLoad; // design cooling load used for zone equipment [W]
 		Real64 DesHeatingLoad; // design heating load used for zone equipment [W]
+		Real64 SpecDesSensCoolingFrac; // Fraction of Design Sensible Cooling Load from DesignSpecification:AirTerminal:Sizing
+		Real64 SpecDesCoolSATRatio; // Cooling Design Supply Air Temperature Difference Ratio from DesignSpecification:AirTerminal:Sizing
+		Real64 SpecDesSensHeatingFrac; // Fraction of Design Sensible Heating Load from DesignSpecification:AirTerminal:Sizing
+		Real64 SpecDesHeatSATRatio; // Heating Design Supply Air Temperature Difference Ratio from DesignSpecification:AirTerminal:Sizing
+		Real64 SpecMinOAFrac; // Fraction of Minimum Outdoor Air Flow from DesignSpecification:AirTerminal:Sizing
 
 		// Default Constructor
 		TermUnitSizingData() :
@@ -728,7 +733,12 @@ namespace DataSizing {
 			ReheatAirFlowMult( 1.0 ),
 			ReheatLoadMult( 1.0 ),
 			DesCoolingLoad( 0.0 ),
-			DesHeatingLoad( 0.0 )
+			DesHeatingLoad( 0.0 ),
+			SpecDesSensCoolingFrac( 1.0 ),
+			SpecDesCoolSATRatio( 1.0 ),
+			SpecDesSensHeatingFrac( 1.0 ),
+			SpecDesHeatSATRatio( 1.0 ),
+			SpecMinOAFrac ( 1.0 )
 		{}
 
 	};

diff --git a/src/EnergyPlus/DirectAirManager.cc b/src/EnergyPlus/DirectAirManager.cc
@@ -330,10 +330,19 @@ namespace DirectAirManager {
 				DirectAir( DirectAirNum ).AirTerminalSizingSpecIndex = 0;
 				if ( !lAlphaFieldBlanks( 4 )) {
 					DirectAir( DirectAirNum ).AirTerminalSizingSpecIndex = InputProcessor::FindItemInList( cAlphaArgs( 4 ), DataSizing::AirTerminalSizingSpec );
-					if (DirectAir( DirectAirNum ).AirTerminalSizingSpecIndex  == 0) {
+					if ( DirectAir( DirectAirNum ).AirTerminalSizingSpecIndex == 0 ) {
 						ShowSevereError(cAlphaFieldNames( 4 ) + " = " + cAlphaArgs( 4 ) + " not found.");
 						ShowContinueError( "Occurs in " + cCurrentModuleObject + " = " + DirectAir( DirectAirNum ).cObjectName );
 						ErrorsFound = true;
+					} else {
+						// Fill TermUnitSizing with specs from DesignSpecification:AirTerminal:Sizing
+						auto & thisTermUnitSizingData( DataSizing::TermUnitSizing( DirectAir( DirectAirNum ).TermUnitSizingIndex ) );
+						auto const & thisAirTermSizingSpec( DataSizing::AirTerminalSizingSpec( DirectAir( DirectAirNum ).AirTerminalSizingSpecIndex ) );
+						thisTermUnitSizingData.SpecDesCoolSATRatio = thisAirTermSizingSpec.DesCoolSATRatio;
+						thisTermUnitSizingData.SpecDesHeatSATRatio = thisAirTermSizingSpec.DesHeatSATRatio;
+						thisTermUnitSizingData.SpecDesSensCoolingFrac = thisAirTermSizingSpec.DesSensCoolingFrac;
+						thisTermUnitSizingData.SpecDesSensHeatingFrac = thisAirTermSizingSpec.DesSensHeatingFrac;
+						thisTermUnitSizingData.SpecMinOAFrac = thisAirTermSizingSpec.MinOAFrac;
 					}
 				}