This model contains a calculation procedure for flow coefficients
  presented by Li (2013).
| Reference | Formula | Refrigerants | Validity Tcondensing | Validity Tevaporating | Validity Tsubcooling | 
|---|---|---|---|---|---|
| Li2013 | C = a1 + a2*opening + a3*opening^2 +
          a4*opening*(Tsubcooling/Tcrit) +
          a5*(Tsubcooling/Tcrit) +
          a6*(Tsubcooling/Tcrit)^2 | R22 | 30 - 50 °C | 0 - 30 °C | 1.5 - 15 °C | 
Li, W. (2013): Simplified modeling analysis ofmass flow characteristics in electronic expansion valve. In: Applied Thermal Engineering 53(1), S. 8–12