3.2 Comparison of density
The density of oil, being directly dependent upon the hydrogen and carbon content, is related to the calorific value
of the oil. Therefore, higher dense fuel is less required in volume than lower dense fuel to obtained same amount of
calorific value. Fig.6 shows the comparison of density of different oil at definite temperature. This figure also
indicates that the density of the extracted pine oil is slightly higher than diesel fuel. It also shows that the density of
extracted and pressed oil (extracted pine oil, neem oil, pitraj oil and castor oil) is near about to density of diesel, but
the density of pyrolytic oil (pyrolytic pine oil, date seed oil, waste paper oil, sugarcane baggage oil, jute stick oil) is
higher than the density of diesel. From the comparison, it is shown that the density of pine oil is favourable than
other oils because solvent extracted pine oil contains small amount of impurities found by distillation process.
Therefore, alternative use of extracted pine oil can be considered as fuel directly or can be blended with another
fuel.
Fig.5 Comparison of Calorific value of different oil at 30°C
Various oil