Flash Drum

Separates feed into vapor and liquid phases.

Parameters

Parameter	Type	Unit	Description
T	Quantity	°C, K	Flash temperature
P	Quantity	bar, Pa	Flash pressure

Calculation

1. Calculate K-values: Ki = Psat_i(T) / P
2. Solve Rachford-Rice for vapor fraction V
3. Calculate phase compositions

export function solveFlash(inlet: StreamData, params: { T: number, P: number }) {
  const result = flash(inlet.composition, params.T, params.P);
  
  return {
    vapor: {
      T: params.T,
      P: params.P,
      flow: inlet.flow * result.V,
      composition: result.y
    },
    liquid: {
      T: params.T,
      P: params.P,
      flow: inlet.flow * (1 - result.V),
      composition: result.x
    }
  };
}

Ports

Port	Direction	Phase
in	Input	Any
vapor-out	Output	V
liquid-out	Output	L