Questions tagged [turbomachinery]

The tag has no usage guidance.

9 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
1answer
41 views

Does pressure in a centrifugal compressor increase along the path of the flow?

Euler turbomachinery equation doesn't include a term for changes in flow area. But, an centrifugal impeller (not the volute) has increasing flow area along the path of the flow. Is the pressure ...
1
vote
1answer
108 views

Pressure recovery in turbomachinery

Diffusers in turbomachinery are used to transfer some of the kinetic energy of the fluid to pressure energy and to direct the fluid to the ducting/second stage/... I understand this and the mechanism ...
1
vote
0answers
22 views

Turbocharger boost control using two valves with a vac and boost reference for wide boost control range

Can someone explain how the above boost control setup would work. The valve on the left uses a vac source applied to the top of the diaphram which would effectively help hold the spring closed at high ...
1
vote
1answer
203 views

How do I calculate the force coming from the centrifugal compressor exhaust?

Let's say I have a centrifugal compressor as shown in the figure and I know the following parameters----1 Thrust Inlet and outlet pressure Power required to operate the compressor Inlet and outlet ...
0
votes
0answers
20 views

Side entry mixer sizing

I'm involved in purchasing a set of mixers for a crude oil storage tank. The tank volume is around 98,500 cubic meters. The main purpose of the mixers is base sediment & water control (cleaning). ...
0
votes
0answers
22 views

Control Volume Method for Calculating Pressure Distribution in a Turbomachine

I'm looking at ways to calculate the axial thrust of a turbomachine. The ways that i've found in books aren't the best documented. I know I can't use Bernouli's law since the impeller will chop up ...
0
votes
1answer
73 views

How is the ideal Euler line on a pump curve derived?

This website provides Euler’s equations for turbomachinery and solves a sample problem using velocity triangles. The problem prompt only provides the speed of the pump and the geometry of the pump and ...
0
votes
0answers
41 views

How is the number of blades on a centrifugal compressor determined?

If I know the tip and hub diameter of a centrifugal compressor ,the inlet velocity and outlet velocity, how do I determine the number of blades on a centrifugal compressor?
0
votes
1answer
37 views

What does the author mean? Turbomachinery - Reaction

I am reading a book of Fundamental Energy Systems. The author describes the rate of change in head for a turbomachine as: $$ \frac{1}{2}[(V_1^2-V_2^2)+(U_1^2-U_2^2)+(V_{R2}^2-V_{R1}^2)] = H =U_1V_{u1} ...