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Hi All, I'm designing a compressed air system that gets a connection from a Plant Air compressed system at 7 barG. I want to size the connecting piping in the way that it can provide enough flow and pressure to the all spray nozzles in attached. There are two types of nozzles (S1 and S2) need...

Hi all, I have a curve from a compressor supplier that provides Allowable nozzle loads based on the attached values (A line between Maximum force and maximum Moment). When I do Caesar II analysis I get Fx, Fy, Fz, Mx, My, Mz values at the nozzle location. How can I relate the F and M values...

Hi All, We have a 12 m3 above-ground Diesel tank and fuel bowser fabricated and installed in Australia. For the person who does the inspection and maintenance on this diesel tank, is there any certification or qualification required in Australia that he needs to have? Such as the Type B...

Hi All, i received a stress analysis done in abaqus and have a question as using Inventor Professional 2022 to do similar analysis. In the received report instead of the stresses it talks about residual plastic strains in the material. If i want to do a linear static analysis in Autodesk...

Hi All, I am working on a crane that will be used in Australia and I thought that people working in the railway or crane industry may be able to assist me. According to the Australian standard AS 5228.1-2021 (Table 101) and AS 1418.1-2002 (Table 7.20.3.6), the fillet radius between the tread...

Hi all, We have an unbalenxed vibrating exciter for a vibrating screen and require to know what bolt torque is required to fasten the vibrating motor to the screen frame? Considering the point that the motor is an old one and the manufacturer is not available is there any way calculate the...

Hi All, I need to design a dust collecting/extraction system (Including ducting and fan selection) for a slaking ball mill that slakes Quicklime material and want to know how much dust and steam comes out of the slaking ball mill that I can design correct ducting and select a proper fan. The...

Hi All, I need to calculate the water film thickness at a bottom of a conical hopper with two inlet nozzles on top side (as attached). Have you seeing any calculation /article that can be used for defining water film thickness and water velocity at the bottom of the conical hoper attached...

Hi all, For preparing hydrated lime from quicklime, after screw feeder there is one vortex mixer which adds water to quicklime powder before going into slaking tank. How can i find some information about designing a vortex mixer and what the requirements of correct design are. Thanks in advance

Hi All, Our pump supplier has mentioned that water entering the mechanical seal needs to be quench water. On our site we do have a RO system and want to make sure that Quench water is the same as RO water. Are they same or different? thanks in advance, best regards,

Hi Guys, I’m a mechanical engineer new to electric motors. Could you please reply to following question. 1. We have a centrifugal pump that required AC motor size was 2 KW but 7.5 KW selected to account for future pressure drops due to changing the line. Is it a problem to use that big motor...

Hi All, I want to design a Hydrated Lime Plant and require some info if you previously designed. Material feeding is dry hydrated lime and needs to get to a concentration of 5-20 % w/w by the addition of water. Is it possible to have continues system rather than batching system by just having...

Hi guys, I want to design a bin activator for a silo and having some challenges that appreciate if any one can help me out on those: 1. What should be amplitude of vibration of bin activator? I calculate the vibration amplitude and find that it would be leas than half a milimeter by considering...

Hi Guys, I'm new in pipe sizing and want to know what slope and diameter of pipeline I should use to avoid settling of slurries in pipeline. Top side of the line is connected to a tank with shallow height of slurry (no pressure is imposed) and the bottom line is going to a storage tank. I went...

Hi, I have a question regarding selecting proper material for LWN flanges for class 1500# in pipeline (B31.8 or AS2885) with material of API5L X70 and X65. Design pressure: 20 Mpa Design Temp.: 0-60 C Is ASTM A105 non normalized accepted for this temperature? How about A694 F65? which one is...

Hi Guys, I'm designing a pressure vessel with 250 C temperature and 20 barg for caustic soda 50%. Do you have any idea about material selection? I have read a couple of references like "Alloy selection for caustic soda service" and "NACE SP040315" but not applicable for this temperature. Thanks

Hi Guys, I' m struggling with an issue regarding bolt minimum acceptable pretension. I'm designing a clamp for aluminium tube (DN 50)and I'm using finite element analysis to check bolt loads and loads on tube. Bolts are M5 and if I follow available bolt pretension suggested by different...

Hi guys, Does any have any thought why this happens in modal analysis? All elements are beam and is modeled in spaceclaim. all nodes are connected in spaceclaim and there is no gap in model. but when I import it to modal analysis nodes seperate and first and second frequencies bcome zero...

Hi, I recieve following error when I run my design in Tank Software. Anyone knows why and how to solve that? " FATAL ERROR 158...

Hi, I'm working on a storage tank with fluid temperature of 300 degree centigrade and 35 kpa pressure. I want to know if is there any standard availabe for that. API650 is applicable for temperature upto 250 degree centigrade (App. M) and 18kpa pressure. API620 is applicable for moedrate...