ECEN 5053-003 Homework Assignment: Week- 3 : Flow Sensors

You want to measure the flow rate of air of density 1.225 kg/m3 in a
differential pressure meter. The upstream pressure is 20 N / m2 and the
downstream pressure is 15 N / m2. The meter has an area of 0.1 m2.
What is the flow rate in m3 / sec?

What advantage does a coriolis meter have over a thermal mass flow
meter when measuring the mass flow rate of a gas?

C. A You want to measure the flow rate of a gas at roughly 400°C, 15 Bar
static pressure, and 150 m/s flow velocity. Which is the only type of flow
meter, from the 7 types that we discussed in class, that you can use and
why?

D. What are three differences in the method and principal of operation
between a variable area meter and a differential flow pressure meter?
(note: this question is not asking about the specifications of the meters)

E. The k-factor for a turbine meter for flow in a 1.5” (38.1 mm) diameter
pipe is 110 pulses per liter. Your magnetic pickup assembly recorded a
frequency of 150 Hz. What is the flow rate Q in liters per minute?

F. A coriolis flow meter has a liquid flow accuracy of 0.25% of flow rate and a
zero stability of 3.5 kg / hr. What is the maximum error in kg /hr in the flow
rate reading when the meter measures a flow rate of 2500 kg / hr?

G. What are three differences in the pattern of fluid flow between laminar flow
and turbulent flow?