We use railcars for storage and transport that are cleaned with water hoses. In the process of improving cleaning operations, we are now using a 1.5” diameter hose, instead of 2" before, coming out 2" diameter piping. However, operators now complain that the reaction force is too intense...
I'm currently using an the 1977 version of API technical databook for petroleum refining to estimate physical properties of hydrocarbons blends.
However, it seems that a data is missing in procedure 6B1.8 for density calculation : the value of constant c3 reads as 0.0. I think that the...
I'm reviewing flow compensation factors for gas mixtures and I came accross a few inconsistencies on the composition compensation. The formula used is :
((P/Pref)(Tref/T)(G/Gref))^0.5
with G and Gref defined as the specific gravity OR molecular weight.
The composition of the gas varies...
I'm looking for an effective software to handle the calculations of hydraulics for the design of a new cooling water network.
Maybe there are already threads on that subject but the search engine is unavailable at this time...
Thank you,
Frederique
[noevil]
Does anyone know a source (preferably online) for the mechanical properties such as the modulus of elasticity and the poisson's ratio at variosu temperatures for stainless steel? I'm trying to compute the pressure correction term for a pipe given by eq. 9.110 in RJ Miller's Flow measurement...
Is there a way to have an estimate of the pressure drop through a 25' hose. I did a first calculation assuming first all the length of the hose was straight (which must be almost never true...) and second assuming that the hose has the same caracteristics of the pipe it is connected to since I...
To verify if we have a two-phase flow in a steam condensate line, is it correct to assume the pressure drop accross the tubing is equal to the pressure drop of the estimated flowrate of steam plus the pressure drop of the remaining flowrate of water? Can it give a rough estimate? If not is there...
I'm looking for relationships (empirical or theoretical) for the net gas expansion factor Y as a function of downstream and upstream pressures and the pipe resistance coefficient K among others for the compressible fluid flow through pipes. All I could find was related to flowmeters with a...
Does anyone know how were those plots obtained (page A-22 in Crane)? I'm trying to compare data from another source and they are quite different, i would like to be sure that I'm comparing apples with apples...
Thank you!
[noevil]
I'm using equations 3.20 in Crane to calculate the pressure drop of a compressible fluid at a give rate through pipes and fittings using values of the net expansion factor given in page A-22. However, most of my calculations involves propylene which has a somewhat lower Cp/Cv (= 1.15 roughly)...
I'm using equations 3.20 in Crane to calculate the pressure drop of a compressible fluid at a give rate through pipes and fittings using values of the net expansion factor fiven in page A-22. However, most of my calculations involves propylene which has a somewhat lower Cp/Cv than the lowest...
