public static float CalcSpargeWaterVolume(MashInputs grainInputs)
{
// This method does not use .5 * boil volume just in case the user opts out of the equal runnings goal.
float spargeVol = grainInputs.BoilVol - CalcStrikeVolume(grainInputs) + CalcRetainedWater(grainInputs);
return(spargeVol);
}
public static float CalcRetainedWater(MashInputs grainInputs)
{
float r = 0.5F; // This is the wet retention factor for grist in quarts per pound.
float retainedVol = r * grainInputs.GrainWeight / 4;
return(retainedVol);
}
public static MashOutput Calculate(MashInputs grainInputs)
{
MashOutput ret = new MashOutput
{
StrikeTemp = CalcStrikeTemp(grainInputs),
StrikeVol = CalcStrikeVolume(grainInputs),
SpargeVol = CalcSpargeWaterVolume(grainInputs)
};
return(ret);
}
public static float CalcStrikeTemp(MashInputs grainInputs)
{
//from John Palmer's How to Brew III edition pg 266,268
float roe = 2.055F; // This value is the average density of water across the reasonable range of mash temperatures in lb/qt
float s = 0.4F; // This is the heat capacity of grain relative to water
float R = (grainInputs.Ratio * roe); //weight per weight ratio water per grist
float strikeT = ((s / R) * (grainInputs.TargetMashTemp - grainInputs.GrainTemp) + grainInputs.TargetMashTemp);
return(strikeT);
}
public static float CalcRatioForBatchSparge(MashInputs grainInputs)
{
float ratio = ((grainInputs.BoilVol * 4 / 2) + CalcRetainedWater(grainInputs)) / grainInputs.GrainWeight;
return(ratio);
}
public static float CalcStrikeVolume(MashInputs grainInputs)
{
float vol = (grainInputs.GrainWeight * grainInputs.Ratio) / 4;
return(vol);
}
