If steady flow exists in a piping system with different diam

____If steady flow exists in a piping system with different diameter nines the volume. remain eon flan, Changes in fluid velocity within a piping system will result in changes in momentum The volumetric flow rate and the mass flow rate are equal if the fluid is considered incompressible. If the velocity profile of a fluid emerging from a control surface varies with surface area, integration across the control surface will yield the mass flow rate provided the density is known. If the velocity profile of a fluid emerging from a control surface varies with surface area, the control volume form of the momentum equation cannot be used. The control volume form of the first law of thermodynamics can only be if a fluid is flow ring into and or out of the control volume. The control volume form of the first law of thermodynamics can be used to calculate the of a pump or compressor. The original assumptions used to develop the equation allow the horsepower requirements or compressor to be determined. If friction is present in a turbulent fluid flow application, the Bernoulli equation is appropriate for a complete analysis of the system. A venture meter fitted with piezometers (vented to the atmosphere) is good measuring volumetric gas flow rates.

Solution

1) At any section, volumetric flow rate is constant where as velocity changes with cross-sectional area. Thus given statement is FALSE.

2) Momentum is the product of mass and velocity. Thus, the change in velocity will alter the momentum. Therefore, the given statement is TRUE.

3) Mass flow rate is the product of density and volumetric flow rae. Thus irrespective of the type of flow, the mass flow rate does not equal to the volumetric flow rate.Given statement is FALSE

4) TRUE.

Integral of the velocity across the control surface will given the volumetric flow rate. So if density is known, mass flow rate can be evaluated.