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Diffstat (limited to '3831/CH13/EX13.17/Ex13_17.sce')
-rw-r--r-- | 3831/CH13/EX13.17/Ex13_17.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/3831/CH13/EX13.17/Ex13_17.sce b/3831/CH13/EX13.17/Ex13_17.sce new file mode 100644 index 000000000..4fdf74c98 --- /dev/null +++ b/3831/CH13/EX13.17/Ex13_17.sce @@ -0,0 +1,19 @@ +// Example 13_17
+clc;funcprot(0);
+// Given data
+CR=18.0;// The compression ratio
+CO=2.32;// The cut off ratio
+HV=45.5*10^3;// The heating value of a fuel in kJ/kg
+m_fuel=3.35;// The fuel flow rate of rate in kg/s
+W_B=80080;// kW
+k=1.40;// The specific heat ratio
+
+// Calculation
+// (a)
+n_T_disel=(1-(((CR)^-0.40)*([((CO)^k)-1]))/(k*(CO-1)))*100;// The Diesel cold ASC thermal efficiency of the engine in %
+// (b)
+Q_fuel=HV*m_fuel;// kW
+n_T_diselact=(W_B/Q_fuel)*100;// The actual thermal efficiency of the engine in %
+// (c)
+n_m=(n_T_diselact/n_T_disel)*100;// The mechanical efficiency of the engine in %
+printf("\n(a)The Diesel cold ASC thermal efficiency of the engine,n_T=%2.1f percentage \n(b)The actual thermal efficiency of the engine,(n_T)_Diesel actual=%2.1f percentage \n(c)The mechanical efficiency of the engine,n_m=%2.1f percentage",n_T_disel,n_T_diselact,n_m);
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