rapor - CALCULATIONS FOR SPEED CHARACTERISRIC AT FULL LOAD...

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CALCULATIONS FOR SPEED CHARACTERISRIC AT FULL LOAD n(d/d) F(N ) ∆t fuel(s) ∆t air(s) T air ( o C) P atm (mbar) T exh ( o C) ∆H Hg (mmHg) T w in( o C) T w out( o C) 1200 218 50 74 17 1018 398 100 78 85 1600 219 37,8 57,2 17 1018 404 160 74 84 2000 205 31,4 45,9 18 1018 403 145 73 83 2400 185 28,2 37,8 19 1018 442 185 74 84
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CALCULATIONS FOR LOAD CHARACTERISRIC AT CONSTANT SPEED (n = 1600 rpm) n(d/d) F(N ) ∆t fuel(s) ∆t air(s) T air ( o C) P atm (mbar) T exh ( o C) ∆H Hg (mmHg) T w in( o C) T w out( o C) 1600 219 37,8 57,2 17 1018 404 100 75 85 1600 132 64,1 55 18 1018 288 105 76 83 1600 66 110,1 54,5 18 1018 203 110 72 80 Calculations for speed characteristic at full load are below : n [rpm] F [N] t fuel [s] t air [s] T air [ 0 C] T exh [ 0 C] H Hg [mmHg] T w-in [ 0 C] T w-out [ 0 C] T e [N.m] P e [kW] 1200 222,5 50,42 74,43 15,0 431,0 100 73 84 212,5 26,7 1600 222,5 39,48 57,80 14,0 433,0 120 71 82 212,5 35,6 2000 208,0 34,00 46,71 13,0 433,0 139 70 80 198,6 41,6 2400 189,0 28,66 37,61 12,5 440,0 194 71 82 180,5 45,4 n [rpm] BMEP [MPa] m fuel [kg/s] bsfc [g/kWh] ρ air [kg/m 3 ] m air [kg/s] η v λ m exh [k/s] m water [kg/s] 1200 0,85 0,0017 225 1,25 0,0336 0,856 1,44 0,0353 0,337 1600 0,85 0,0021 215 1,26 0,0434 0,826 1,45 0,0456 0,369 2000 0,79 0,0025 214 1,26 0,0539 0,818 1,55 0,0564 0,397 2400 0,72 0,0029 233 1,26 0,0671 0,847 1,63 0,0700 0,469 n [rpm] Q total [kJ/s] Q e [kJ/s] Q water [kJ/s] Q exh [kJ/s] Q friction [kJ/s] q e [%] q water [%] q exh [%] q friction [%] 1200 69,6 26,7 15,6 16,0 11,4 38,3 22,3 23,0 16,3 1600 88,9 35,6 17,0 20,8 15,5 40,0 19,2 23,4 17,4 2000 103,3 41,6 16,7 25,8 19,2
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