In my recent experiment, I found a condition where the power, torque and its brake specific fuel consumption of a the dual engine were significantly higher than the original diesel engine, in lower and higher load condition. The knocking condition are detected only by hearing the sound of the engine combustion.
If you seek to retrofit knock sensors to an engine that is not equipped with knock-detection equipment you might want to source some piezo-electric accelerometers and experiment by attaching them to the cylinder heads with epoxy adhesive and hooking their outputs up to a ‘scope. You might even find you can add a transducer to each individual cylinder head and monitor each cylinder independent of the rest. It will be interesting to observe how the transducer outputs against time vary between a knock and no-knock combustion condition.
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The condition of "Knocking" can be known in detail both the value and position of the piston by taking pressure data that occurs in the engine cylinder, and taking data on the position of the piston in the cylinder. This can be done by placing a pressure sensor in the cylinder and placing many proximity sensors along the piston stroke in the outer position of the cylinder.
I attach the drawing design.
Thank you very much dear PPak R Bagus SURYASA Majanasastra for your valuable contribution.
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