add emission calculator

src/class_EmissionsCalculator.py

@@ -0,0 +1,61 @@
+class EmissionsCalculator:
+    """
+    A class to calculate emissions based on fuel consumption.
+    """
+
+    def __init__(self, fuel_consumption_tons, sulfur_content=0.5):
+        """
+        Initialize the EmissionsCalculator with fuel consumption and sulfur content.
+
+        Parameters:
+            fuel_consumption_tons (float): Fuel consumption in tons.
+            sulfur_content (float): Sulfur content in the fuel (percentage, default is 0.5%).
+        """
+        self.fuel_consumption_tons = fuel_consumption_tons
+        self.sulfur_content = sulfur_content
+
+    def calculate_CO2_emissions(self):
+        """
+        Calculate CO2 emissions based on fuel consumption.
+
+        Returns:
+            float: CO2 emissions in tons.
+        """
+        EF_CO2 = 3.206  # CO2 emission factor (tons per ton)
+        return self.fuel_consumption_tons * EF_CO2
+
+    def calculate_SO2_emissions(self):
+        """
+        Calculate SO2 emissions based on fuel consumption and sulfur content.
+
+        Returns:
+            float: SO2 emissions in tons.
+        """
+        EF_SO2 = self.sulfur_content * 0.02  # SO2 emission factor depends on sulfur content (tons per ton)
+        return self.fuel_consumption_tons * EF_SO2
+
+    def calculate_NOx_emissions(self):
+        """
+        Calculate NOx emissions based on fuel consumption.
+
+        Returns:
+            float: NOx emissions in tons.
+        """
+        EF_NOx = 0.07  # NOx emission factor (tons per ton, average value)
+        return self.fuel_consumption_tons * EF_NOx
+
+if __name__ == "__main__":
+    # Example usage
+    fuel_consumption = 60  # Fuel consumption in tons
+    sulfur_content = 0.5  # Sulfur content in percentage
+
+    calculator = EmissionsCalculator(fuel_consumption, sulfur_content)
+
+    CO2_emissions = calculator.calculate_CO2_emissions()
+    SO2_emissions = calculator.calculate_SO2_emissions()
+    NOx_emissions = calculator.calculate_NOx_emissions()
+
+    print("Emissions based on fuel consumption:")
+    print(f"CO2: {CO2_emissions:.2f} tons")
+    print(f"SO2: {SO2_emissions:.2f} tons")
+    print(f"NOx: {NOx_emissions:.2f} tons")