lib/openstudio-standards/standards/Standards.BoilerHotWater.rb in openstudio-standards-0.1.3 vs lib/openstudio-standards/standards/Standards.BoilerHotWater.rb in openstudio-standards-0.1.4

@@ -108,11 +108,11 @@
   end
 
 
   # Applies the standard efficiency ratings and typical performance curves to this object.
   # 
-  # @param template [String] valid choices: 'DOE Ref Pre-1980', 'DOE Ref 1980-2004', '90.1-2004', '90.1-2007', '90.1-2010', '90.1-2013'
+  # @param template [String] valid choices: 'DOE Ref Pre-1980', 'DOE Ref 1980-2004', '90.1-2004', '90.1-2007', '90.1-2010', '90.1-2013', 'NECB2011'
   # @param standards [Hash] the OpenStudio_Standards spreadsheet in hash format
   # @return [Bool] true if successful, false if not 
   def setStandardEfficiencyAndCurves(template)
   
     successfully_set_all_properties = false
@@ -155,23 +155,51 @@
     else
       OpenStudio::logFree(OpenStudio::Warn, 'openstudio.standards.BoilerHotWater', "For #{self.name} capacity is not available, cannot apply efficiency standard.")
       successfully_set_all_properties = false
       return successfully_set_all_properties
     end
- 
+    
+    # for NECB, check if secondary and/or modulating boiler required
+    if (template == 'NECB 2011')      
+      if (capacity_w/1000.0 >= 352.0)
+        if (self.name.to_s.include?("Primary Boiler"))
+          boiler_capacity = capacity_w
+          self.setBoilerFlowMode('LeavingSetpointModulated')
+          self.setMinimumPartLoadRatio(0.25)
+        elsif (self.name.to_s.include?("Secondary Boiler"))
+          boiler_capacity = 0.001
+        end
+      elsif ((capacity_w/1000.0) >= 176.0) && ((capacity_w/1000.0) < 352.0)
+        boiler_capacity = capacity_w/2
+      elsif ((capacity_w/1000.0) <= 176.0)
+        if (self.name.to_s.include?("Primary Boiler"))
+          boiler_capacity = capacity_w
+        elsif (self.name.to_s.include?("Secondary Boiler"))
+          boiler_capacity = 0.001
+        end
+      end
+      self.setNominalCapacity(boiler_capacity)
+    end  # NECB 2011
+
     # Convert capacity to Btu/hr
-    capacity_btu_per_hr = OpenStudio.convert(capacity_w, "W", "Btu/hr").get
-    capacity_kbtu_per_hr = OpenStudio.convert(capacity_w, "W", "kBtu/hr").get
+    if template == 'NECB 2011'
+      capacity_btu_per_hr = OpenStudio.convert(boiler_capacity, "W", "Btu/hr").get
+      capacity_kbtu_per_hr = OpenStudio.convert(boiler_capacity, "W", "kBtu/hr").get
+    else
+      capacity_btu_per_hr = OpenStudio.convert(capacity_w, "W", "Btu/hr").get
+      capacity_kbtu_per_hr = OpenStudio.convert(capacity_w, "W", "kBtu/hr").get
+    end
+      
 
     # Get the boiler properties
     blr_props = self.model.find_object(boilers, search_criteria, capacity_btu_per_hr)
     unless blr_props
       OpenStudio::logFree(OpenStudio::Warn, 'openstudio.standards.BoilerHotWater', "For #{self.name}, cannot find boiler properties, cannot apply efficiency standard.")
       successfully_set_all_properties = false
       return successfully_set_all_properties
     end
-    
+
     # Make the EFFFPLR curve
     eff_fplr = self.model.add_curve(blr_props['efffplr'])
     if eff_fplr
       self.setNormalizedBoilerEfficiencyCurve(eff_fplr)
     else
@@ -179,11 +207,11 @@
       successfully_set_all_properties = false
     end   
 
     # Get the minimum efficiency standards
     thermal_eff = nil
-    
+
     # If specified as AFUE
     unless blr_props['minimum_annual_fuel_utilization_efficiency'].nil?
       min_afue = blr_props['minimum_annual_fuel_utilization_efficiency']
       thermal_eff = afue_to_thermal_eff(min_afue)
       self.setName("#{self.name} #{capacity_kbtu_per_hr.round}kBtu/hr #{min_afue} AFUE")
@@ -208,19 +236,9 @@
     # Set the efficiency values
     unless thermal_eff.nil?
       self.setNominalThermalEfficiency(thermal_eff)
     end   
   
-    #puts "capacity_w = #{capacity_w}"
-    
-   # for NECB, check if modulating boiler required
-   # TO DO: logic for 2 stage boilers when heating cap > 176 kW and < 352 kW
-   if template == 'NECB 2011'      
-      if capacity_w >= 352000 
-        self.setBoilerFlowMode('LeavingSetpointModulated')
-        self.setMinimumPartLoadRatio(0.25)
-      end
-   end  # NECB 2011
-  return successfully_set_all_properties
+    return successfully_set_all_properties
   end
   
 end