termo.eos.alpha.AdachiAndLuAlphaExpresion Maven / Gradle / Ivy

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Thermodynamics properties and equilibria calculations for chemical engineering.

There is a newer version: 3.5

package termo.eos.alpha;

import termo.component.Compound;

/**
 *
 * @author Hugo
 */
public class AdachiAndLuAlphaExpresion extends Alpha{

    public AdachiAndLuAlphaExpresion(){
        setEquation("\\alpha(T) = A10^{B\\left(1-T_r\\right)}");
    }
    @Override
    public double alpha(double temperature, Compound component) {
        double A = component.getA_AdachiAndLu();
        double B = component.getB_AdachiAndLu();
        double tr = temperature / component.getCriticalTemperature();
        return A* Math.pow(10,B*(1-tr));
    }

    @Override
    public double TempOverAlphaTimesDerivativeAlphaRespectTemperature(double temperature, Compound component) {
        double A = component.getA_AdachiAndLu();
        double B = component.getB_AdachiAndLu();
        double tr = temperature /component.getCriticalTemperature();
        
        return - (B*tr);
    }

    @Override
    public int numberOfParameters() {
        return 2;
    }

    @Override
    public void setParameter(double value, Compound component, int index) {
        if(index ==0 ){
            component.setA_AdachiAndLu(value);
        }else if(index ==1){
            component.setB_AdachiAndLu(value);
        }
    }

    @Override
    public double getParameter(Compound component, int index) {
        if(index ==0 ){
            return component.getA_AdachiAndLu();
        }else if(index ==1){
            return component.getB_AdachiAndLu();
        }else{
            return 0;
        }
    }
	@Override
	public String getParameterName(int index) {
		switch(index){
	        case 0 : return "A";
	        case 1: return "B";
	        default: return null;
		}
	}
    
    

    
}