THEORY PRINCIPLE

Pressure drop always happens on channel that has beginning pressure, no matter how the drop is. It is caused by many factors among them are diameter of the channel, roughness of the surface, height of channel-in with channel-out, etc. The drop usually has bad effect to work of the system, in this case is vehicle engine, so in designing a channel we have to pay more attention about this pressure drop. In designing an exhaust pipe, the pressure drop problem has important attention after acoustic problem caused by vibration on the channel.

In this calculation, it will be determined the items obtained from the vehicle components and experimental data that is available. It is caused by limitation in defining parameters needed, besides that the available experimental data generally fits the design equipment.


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