FuelsManager Defense
280 Administrator Manual
Polynomial
This technique is used for specialized products that do not fall within one of the
correction tables already identified. A table of density versus temperature data can
be converted to a polynomial using the least square method of curve fitting. Using
the least square method results in a set of polynomial coefficients. FuelsManager
accommodates a fourth order polynomial to obtain a VCF.
The VCF polynomial equation is as follows:
Where:
VCF = K0 + K1 (Dtemp) + K2 (DTemp2) + K3 (DTemp3) + K4 (DTemp4)
VCF = Volume correction factor = % Std Density
StdTemp = Standard Temperature
DTemp = Current temperature - StdTemp
K0 - K4 = Coefficients of polynomial