Thermal Resistance Conversion Methods (#113)

Author: Fraser Greenroyd

Units_Engine/Convert/ThermalResistance/RValue.cs

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+/*
+ * This file is part of the Buildings and Habitats object Model (BHoM)
+ * Copyright (c) 2015 - 2024, the respective contributors. All rights reserved.
+ *
+ * Each contributor holds copyright over their respective contributions.
+ * The project versioning (Git) records all such contribution source information.
+ *                                           
+ *                                                                              
+ * The BHoM is free software: you can redistribute it and/or modify         
+ * it under the terms of the GNU Lesser General Public License as published by  
+ * the Free Software Foundation, either version 3.0 of the License, or          
+ * (at your option) any later version.                                          
+ *                                                                              
+ * The BHoM is distributed in the hope that it will be useful,              
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 
+ * GNU Lesser General Public License for more details.                          
+ *                                                                            
+ * You should have received a copy of the GNU Lesser General Public License     
+ * along with this code. If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.      
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using UN = UnitsNet; //This is to avoid clashes between UnitsNet quantity attributes and BHoM quantity attributes
+using UnitsNet.Units;
+
+using System.ComponentModel;
+using BH.oM.Base.Attributes;
+using BH.oM.Quantities.Attributes;
+
+namespace BH.Engine.Units
+{
+    public static partial class Convert
+    {
+        [Description("Convert metric RSI (m2K/W) into R-value (ft2-h-F/Btu)")]
+        [Input("metricRSI", "Metric RSI (m2K/W) to convert", typeof(ThermalResistanceUnit))]
+        [Output("rValue", "Imperial R-value in ft2-h-F/Btu")]
+        public static double ToRValue(this double metricRSI)
+        {
+            UN.QuantityValue qv = metricRSI;
+            return UN.UnitConverter.Convert(qv, ThermalResistanceUnit.SquareMeterKelvinPerWatt, ThermalResistanceUnit.HourSquareFeetDegreeFahrenheitPerBtu);
+        }
+
+        [Description("Convert R-value (ft2-h-F/Btu) into metric RSI (m2K/W)")]
+        [Input("rValue", "Imperial R-value (ft2-h-F/Btu) to convert")]
+        [Output("metricRSI", "Metric RSI in m2K/W", typeof(ThermalResistanceUnit))]
+        public static double FromRvalue(this double rValue)
+        {
+            UN.QuantityValue qv = rValue;
+            return UN.UnitConverter.Convert(qv, ThermalResistanceUnit.HourSquareFeetDegreeFahrenheitPerBtu, ThermalResistanceUnit.SquareMeterKelvinPerWatt);
+        }
+    }
+}
+
+
+
+

Units_Engine/Convert/ThermalResistance/UValue.cs

@@ -0,0 +1,62 @@
+/*
+ * This file is part of the Buildings and Habitats object Model (BHoM)
+ * Copyright (c) 2015 - 2024, the respective contributors. All rights reserved.
+ *
+ * Each contributor holds copyright over their respective contributions.
+ * The project versioning (Git) records all such contribution source information.
+ *                                           
+ *                                                                              
+ * The BHoM is free software: you can redistribute it and/or modify         
+ * it under the terms of the GNU Lesser General Public License as published by  
+ * the Free Software Foundation, either version 3.0 of the License, or          
+ * (at your option) any later version.                                          
+ *                                                                              
+ * The BHoM is distributed in the hope that it will be useful,              
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 
+ * GNU Lesser General Public License for more details.                          
+ *                                                                            
+ * You should have received a copy of the GNU Lesser General Public License     
+ * along with this code. If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.      
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using UN = UnitsNet; //This is to avoid clashes between UnitsNet quantity attributes and BHoM quantity attributes
+using UnitsNet.Units;
+
+using System.ComponentModel;
+using BH.oM.Base.Attributes;
+using BH.oM.Quantities.Attributes;
+
+namespace BH.Engine.Units
+{
+    public static partial class Convert
+    {
+        [Description("Convert metric U-value (W/m2K) into imperial U-value (Btu/ft2-h-F)")]
+        [Input("metricUValue", "Metric U-value (W/m2K) to convert")]
+        [Output("uValue", "Imperial U-value in Btu/ft2-h-F")]
+        public static double ToUValue(this double metricUValue)
+        {
+            double rSI = 1/metricUValue;
+            return 1/ToRValue(rSI);
+        }
+
+        [Description("Convert U-value (Btu/ft2-h-F) into metric U-value (W/m2K)")]
+        [Input("uValue", "Imperial U-value (Btu/ft2-h-F) to convert")]
+        [Output("metricUValue", "Metric U-value in W/m2K", typeof(ThermalResistanceUnit))]
+        public static double FromUvalue(this double uValue)
+        {
+            double rValue = 1/uValue;
+            return 1/FromRvalue(rValue);
+        }
+    }
+}
+
+
+
+