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Consider the fuel injection process for a diesel cycle. At state point 2, the temperature is 971 K and the pressure is 18 bar. Using
Consider the fuel injection process for a diesel cycle. At state point 2, the temperature is 971 K and the pressure is 18 bar. Using Equations 9.21b and 9.29, create a plot of evaporation time vs injection pressure for a typical diesel injector that has a hole size of 100 microns. Assume the velocity of liquid jet is (2P inj /liq )^0.5 where P inj is the injection pressure drop across the hole. Use Table 9.2 to find (in Equ 9.29I used in lecture). You will find information on properties of diesel fuel in Appendix A. For surface tension, note that kerosene is similar to diesel. What might you do besides increase pressure to further decrease the evaporation time needed
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