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LAB SESSION # 11 11.0 11.0 STUDY OF TEST BED STUDY OF TEST BED 11.1 11.1 ENGINE SPECIFICATIONS: ENGINE SPECIFICATIONS: 4 – Stroke 4 – Cylinder (Vertical Configuration) 2700 cc Water Cooled 11.2 11.2 PROCEDURE: PROCEDURE: Firstly attach the petrol engine to the test bed. Take different readings at the full consumption time and different rpm but keeping the load constant throughout the experiment. Perform the set of calculations Draw the characteristic curves 11.3 11.3 OBSERVATIONS AND CALCULATIONS: OBSERVATIONS AND CALCULATIONS: Swept Volume = V s = 0.0015 m 3 Engine Speed = N = 1200 rpm Engine Load = F = 5, 35, 50 N Moment Arm = r = 0.2865 m Sr . # Engine Load ‘F’ (N) Torque ‘T=Fxr’ (N.m) Brake Power ‘ 2 πNT 60 ’ (kW) Volume Flow Of Fuel ‘V f =vol/ t’ (m 3 /s) Mass Of Fuel ‘m f =V f xρ f ’ (kg/s) 1 5 1.43 180 4.91 x 10 -7 3.5 x 10 -4 2 35 10.02 1261 6.7 x10 -7 4.7 x 10 -4
