Calculation Procedure for Inlet HP Steam Nozzle Size

What is your desired steam velocity and could you give pr in psig ?

inlet HP steam Velocity= 70 mt./sec= 229.6 ft/sec; Pr. = 42 kg/cm2= 596.4 psig; Extraction , MP steam pr.= 13 kg/cm2= 184.6 psig & LP steam Pr.= 3.2 kg/cm2= 45.44 psig.

Regards

According to my calculation...

pipe size = ~ 4 inches

Actual velocity = 184.8 ft/sec

Pressure drop per 100' of pipe = 18.6 psi

Thanks a lot for calculation, can you please let me know , how do you calculated with sized approx 4 inches ?

Regards

S Jana

If I tell you , how will you ever learn ? I use shortcuts, you must learn the long way...the proper way...

Sir, here how you get the actual velocity 184.8 ft/s? actually, before this discussion,i gone thru some engg. text books , but surprised no one mentioned , so to dig up the the formulas/calculation whatever generally those are used to calculate such types of Size calculation, please give me the hints or refer me the some books/ internet resources where i can get the same & learn .

Regards

It would be inappropriate to learn on this size of turbine. What does the employer expect (rhetorical question)? This stuff should be job-related training, not the subject of responses to an anonymous international engineering forum!

Here are some tutorials...as he says you should start smaller

http://www.spiraxsarco.com/resources/steam-engineering-tutorials/control-hardware-el-pn-actuation/control-valve-sizing-for-steam-systems.asp

Dear Sir, thanks a lot for your steam engg. tutorials, if you've more don't forget to post it. yes i did my homework, get a solution that exactly fits your saying" must learn thru a long way- the proper way". yes I've taken Sp. Volume of the HP steam from the steam table and gotten the result. Thanks for supporting.

Regards