Alright, well i went through the very helpful posts.
I have gone through them all now, and started applying my numbers. Referring to Sailoday's post on June 20 and June 21 I have gone through and got T of ~22degC. This assumes a cd of 0.72 (saw this on another post regarding nozzles, not sure...
I have not really had a chance to read through the latest posts thoroughly but I have noticed a couple questions taht I can answer right away.
There is no diffuser. We make no attempt to keep the velocity up. The nozzle exits into a tube(pipe) into the heat exchanger which is slightly below...
Let me rephrase my second paragraph.
The reason I am looking at this, is a corrosion problem we have seen in a recent project at this blasting point. The -25C temp, would this be seen right at the exit plane of the nozzle prior to the velocity decreasing?
Iainuts,
Thanks for your quick response.
And I am concerned about problems caused by this temperature. I guess the temperature I found to be -25C(-13F) would be the temp right at the throat of the nozzle.
This is not a CD nozzle so I will look into isenthalpic processes now and not...
My pressure ratio is (13/139) ~= 0.1 which is <0.528 so am I correct that this flow is choked?
We are using compressed air, so I use a K value of 1.4.
Using the formula given by Sailoday on his 19 Jun 06 post, T = ~-25deg C.
Using the formula given on the webpage I refer to, and using...
I should really stress that I only have minimal fluid background plus I have not really used much of it since school over 3 years ago.
I do appreciate everyone's help.
zdas04, I will look into JT effect. I also appreciate the reality check and I am glad the units entertained you.
Iainuts, fluids is not my thing but I have been doing some reading on to get some sort of background on this problem. I thought that since no shock can occur (since not a CD...
Hello all,
I have been trying to find the temperature of air after exiting a nozzle from an air compressor. The air in the tank is at 125psig and 25deg C and is exiting to a slight vacuum ~ 13psia. Nozzle exit area is 1/4". Flow rate from the tank is ~0.5cfm.
B/c the back pressure is so...
I have been asked to look into a company that produced regenerative fly ash collectors. The company was called Breslove Seperators and was located in Pittsburgh.
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I am not 100% sure this is the right forum, but I'm sure it will do.
I went to school as a materials engineer, but my job now is almost entirely mechanical. People often ask what kind of engineer I am, and I have been saying materials, but really all work I do is along the lines of a...
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But, I have seen a formula to give an estimate...
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