Oxidation, Thermal, and Storage Stability Studies of Jatropha Curcas Biodiesel

Table 16

Predicted models for all metal-contaminated biodiesels in terms of uncoded factors.

S. no.	Metal	Predicted model
1	Fe	IP=∗3𝑀.74−1164.6−3705.06884∗4010∗−3𝑇+0.027098∗𝐴−0.68071∗𝑀−6.87500𝐸−004∗𝑇∗𝐴−0.11000∗𝑇∗𝐴∗𝑀+0.044553∗𝑇^2−9.78261∗10^−7∗𝐴^2−0.094022∗𝑀^2
2	Ni	IP=∗3𝑀.29−0373.1−1205.020∗05140∗−3𝑇+0.027068∗𝐴−1.57538∗𝑀−1.17917∗10^−3∗𝑇∗𝐴−0.076667∗𝑇∗𝐴∗𝑀−9.21498∗10^−3∗𝑇^2−7.05842∗10^−7∗𝐴^2+0.21457∗𝑀^2
3	Mn	IP=∗3𝑀.30−4372.4−9307.514∗17180∗−3𝑇+0.027062∗𝐴−2.00035∗𝑀−9.14583∗10^−4∗𝑇∗𝐴−0.12083∗𝑇∗𝐴∗𝑀−0.018696∗𝑇^2−1.47351∗10^−6∗𝐴^2+0.44674∗𝑀^2
4	Co	IP=∗2𝑀.84−6487.0+8705.004∗831808−3∗𝑇+0.027882∗𝐴−2.02734∗𝑀−1.17500∗10^−3∗𝑇∗𝐴−1.66667∗10^−3∗𝑇∗𝐴∗𝑀−0.044940∗𝑇^2−1.12160∗10^−6∗𝐴^2+0.34304∗𝑀^2
5	Cu	IP=∗4𝑀.44−7986.7−8102.564∗41100∗−3𝑇+0.025363∗𝐴−3.46106∗𝑀−1.14792∗10^−3∗𝑇∗𝐴+0.11250∗𝑇∗𝐴∗𝑀+0.055302∗𝑇^2+2.04823∗10^−6∗𝐴^2+0.86272∗𝑀^2