补充test_mql PNVO焓流诊断与系数校正

PythonModels/components/amesim_pneumatic.py

@@ -38,6 +38,38 @@ class AmesimPneumaticGas:
     def specific_enthalpy(self, temperature: float) -> float:
         return self.cp * temperature
 
+    def specific_reference_enthalpy(
+        self,
+        temperature: float,
+        reference_temperature: float = 298.15,
+    ) -> float:
+        return self.cp * (temperature - reference_temperature)
+
+    def reference_temperature_from_specific_enthalpy(
+        self,
+        specific_enthalpy: float,
+        reference_temperature: float = 298.15,
+    ) -> float:
+        if self.cp <= 0.0:
+            raise ValueError("cp must be positive.")
+        return reference_temperature + specific_enthalpy / self.cp
+
+    def pressure_reference_enthalpy(
+        self,
+        pressure: float,
+        temperature: float,
+        reference_pressure: float = 101_300.0,
+        reference_temperature: float = 298.15,
+    ) -> float:
+        return (
+            self.specific_reference_enthalpy(temperature, reference_temperature)
+            + self.fluid.residual_specific_enthalpy(pressure, temperature)
+            - self.fluid.residual_specific_enthalpy(
+                reference_pressure,
+                reference_temperature,
+            )
+        )
+
     def temperature_from_internal_energy(self, specific_internal_energy: float) -> float:
         if self.cv <= 0.0:
             raise ValueError("cv must be positive.")