DESIGN PROJECT PRESENTATION BY PRIYANK THAKKER METHODOLOGY The
DESIGN PROJECT PRESENTATION BY: PRIYANK THAKKER
METHODOLOGY The design of an effective cooling system involves a three step process which is: Theoretical calculation Computational approach Experimental validation Q= (8. 66 Vd. N + 108. 93 MT + 1119. 74 Ne – 1010 Vd + 2890)/ 3412. 2 Vd = Engine Displacement (in litres) N = Engine speed (RPM) MT = Torque output (Nm) Ne = Power of the engine (k. W)
Table 1: CBR 600 RR engine data Engine Parameters Specifications Displacement 599 cc Maximum Power 118 Bhp @ 13500 RPM Maximum Torque 66 Nm @ 11250 RPM Engine Description Liquid-cooled 4 -stroke 16 -valve DOHC inline-4 Cooling Liquid Cooling Fuel System PGM-DSFI electronic fuel injection Compression Ratio 12. 2: 1 Bore 67 mm Stroke 42. 5 mm No. of Cylinders 4 Valve System 4 Valves per Cylinder
Table 2: Showing the various parameters changed during radiator selection Parameter Length of Radiator core(mm) Breadth of radiator core(mm) Design 1(a) Design 2(a) Design 3(a) Design 1(b) Design 2(b) Design 3(b) 340 340 300 280 280 270 Core thickness (mm) 60 40 40 Fan config(CFM) 750 750 480 480 Overall effectiveness 0. 985 0. 983 0. 981 0. 989 0. 987 0. 986 Overall heat transfer coefficient 185. 4 147. 1 144. 5 113. 5 114. 2 Temperature drop through core(K) 6. 772 5. 883 5. 724 4. 432 4. 016 3. 938
Figure 1: Mass Flow Rate of Air vs. ∆T Figure 2: Mass Flow Rate of Coolant vs. ∆T
Table 3: The flow rate vs. RPM values for the engine used in this design. Honda CBR 600 RR Mechanical Water Pump Flow Rate Test Engine RPM Total Mass (kg) Time (s) Flow rate (L/min) Flow rate per 1000 RPM (L/min/1000 RPM) 2300 20. 4 120 9. 53 4. 14 6300 29. 4 45 37. 27 6. 01 6000 29. 2 45 37. 13 6. 19 6100 29. 6 45 37. 67 6. 28 7000 33. 8 45 43. 33 6. 19 8000 21. 8 25 49. 08 6. 14 8200 22. 3 25 50. 28 6. 29 9000 30. 2 30 57. 6 6. 4 10000 17. 3 15. 5 63. 99 6. 4 10400 17. 9 15. 5 61. 55 6. 15 10100 17. 5 15. 5 60. 89 6. 09
Mass flow rate vs. Engine RPM
Image of Meshed Radiator Core
Side view of the imported geometry
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