2
votes
Accepted
Why are double-acting reciproating compressors more efficient than single-acting ones?
You will find losses in a single acting compression such as leakage, even with a seal as the pressure difference is high, any leaked fluid in a dual acting compressor is less of a loss as it leaks ...
- 301
1
vote
Accepted
Can a scroll compressor be used to generate power?
Looks like "scroll expander" was the term I was looking for.
Still looks to be a pretty rare application, but here are some instances:
Air Squared commercially available scroll expander
...
- 7,904
1
vote
Why does flow capacity of axial turbine decreases with increasing RMP?
Inertia - fluid fails to move into the space vacated by the blade sufficiently quickly.
- 15.4k
1
vote
Why do axial compressor stages have to get smaller and smaller to increase fluid pressure?
Here is an easy way to think of this.
We start with a piston inside a cylinder full of air. We apply a force to the piston and the piston moves into the cylinder, compressing the air. Now the volume ...
- 14.3k
1
vote
Can I use a rotary screw compressor used in refrigeration as a steam compressor?
It is not recommended to use a rotary screw compressor used in refrigeration as a steam compressor for distilling water. The reason is that a rotary screw compressor is not designed to handle the high ...
- 36
1
vote
Accepted
Are there compressors that can compress both water and water vapor?
Water at "normal" pressures is assumed to be incompressible.
However, if you subject water to about 200 atmospheres of pressure then its volume will reduce by about 1%.
So, water vapor will ...
- 15.4k
1
vote
Accepted
What is the critical buckling force needed to be applied on a system of made out of two parts?
Assuming that the support to which they are attached cannot rotate or deflect other than laterally, the buckling limit of the system equals the buckling limit of the system when the weaker bar buckles....
- 22.1k
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