natural_gas_reduction.h

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#pragma once
 
#include <vector>
 
namespace natural_gas_reduction {
 
struct FlowMeterMethodData {
    double flow_rate = 0.0; 
};
 
struct NaturalGasOtherMethodData {
    double consumption = 0.0; 
};
 
struct AirMassFlowMeasuredData {
    double area_of_duct = 0.0; 
    double air_velocity = 0.0; 
};
 
struct AirMassFlowNameplateData {
    double air_flow = 0.0; 
};
 
struct AirMassFlowData {
    bool                     is_nameplate       = false; 
    AirMassFlowMeasuredData  measured_data;              
    AirMassFlowNameplateData nameplate_data;             
    double                   inlet_temperature  = 0.0;   
    double                   outlet_temperature = 0.0;   
    double                   system_efficiency  = 1.0; 
};
 
struct WaterMassFlowData {
    double water_flow         = 0.0;   
    double inlet_temperature  = 0.0;   
    double outlet_temperature = 0.0;   
    double system_efficiency  = 1.0; 
};
 
enum class NaturalGasMeasurementMethod {
    FlowMeter    = 0, 
    AirMassFlow  = 1, 
    WaterMassFlow = 2, 
    Other        = 3  
};
 
struct NaturalGasReductionInput {
    int                         operating_hours      = 0;                                          
    double                      fuel_cost            = 0.0;                                        
    NaturalGasMeasurementMethod measurement_method   = NaturalGasMeasurementMethod::FlowMeter;    
    FlowMeterMethodData         flow_meter_method_data;                                            
    NaturalGasOtherMethodData   other_method_data;                                                 
    AirMassFlowData             air_mass_flow_data;                                                
    WaterMassFlowData           water_mass_flow_data;                                              
    int                         units                = 1;                                          
};
 
struct NaturalGasReductionOutput {
    double energy_use  = 0.0; 
    double energy_cost = 0.0; 
    double heat_flow   = 0.0; 
    double total_flow  = 0.0; 
};
 
NaturalGasReductionOutput naturalGasReduction(const std::vector<NaturalGasReductionInput>& input_vec);
 
NaturalGasReductionOutput flowMeterMethodReduction(const FlowMeterMethodData& data, int operating_hours,
                                                   double fuel_cost, int units);
 
NaturalGasReductionOutput airMassFlowMethodReduction(const AirMassFlowData& data, int operating_hours,
                                                     double fuel_cost, int units);
 
NaturalGasReductionOutput waterMassFlowMethodReduction(const WaterMassFlowData& data, int operating_hours,
                                                       double fuel_cost, int units);
 
NaturalGasReductionOutput otherMethodReduction(const NaturalGasOtherMethodData& data, double fuel_cost);
 
} // namespace natural_gas_reduction