OCR Text |
Show IV. RESULTS Fuel Properties The fuel properties of the pure fuels are reported in Table 2. It can be seen that while the density of the alcohols is of the order of that of DF2, the HHV is 25% less than that of DF2. The properties of the blends are reported in Table 3. The viscosity was determined to be the most significant fuel property with respect to proper atomization. Therefore, blends 5 and 6 were made by mixing different fuels in proportions such that they would have the same viscosity as that of DF2 while keeping the percent of additive below 25%. The viscosities of mixtures 2, 3, and 4 were drastically different from those of DF2. These fuels were tested to determine if the spray pattern coefficient could provide correct atomization for fuels with drastically different fuel properties from those of DF2. The densities of all of the fuels were of the order of the density of DF2. The surface tension for blend 4 was 1%, blends 2, 5, and 6 were 5%, and blend 3 was 7% less than that obtained for DF2. The HHV for all the fuels was approximately 4% less than the HHV for DF2. -29- |