If a system has a fixed orifice, how will the suction pressure be affected?

In a system with a fixed orifice, the behavior of the suction pressure can be understood through the principles of fluid dynamics. A fixed orifice restricts the flow of the fluid and creates a differential pressure across the orifice. When fluid passes through the orifice, it experiences a drop in pressure due to the energy loss associated with turbulence and viscous effects.

As a result, when fluid flows into the system through a fixed orifice, the pressure on the suction side tends to increase because the orifice allows a fixed flow rate, creating a situation where there is less resistance to the pressure on the suction side. Consequently, the fluid entering the system can maintain a higher pressure than in a system that adapts flow based on varying conditions.

This condition leads to the conclusion that a fixed orifice will create a scenario where the suction pressure is maintained at a higher level due to the design and operational characteristics of the system, which allow it to compensate for the flow restrictions created by the orifice.