Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: alienitmeca
  • Content: Threads
  • Order by date
  1. alienitmeca

    Level lowering of pump station

    Hello, When designing a pump with a specific HMT (123 m), and we come across a client update (lowering the pump level ΔL=-1.6m), Suction tie-in point ( with Residual pressure Pr = 15 m minimum) and discharge point elevation are still intact. Do we need to update the pump spécification : HMT...
  2. alienitmeca

    Drinking Water Treatment Plant

    Hello everyone When desinging a water treatment plant, what are the main process methods used. I should mention that the plant is set to produce a regular flow of 1 cubic meter per second (Q = 1 m3/s) and it could go up to 1.25 m3/s Coagulation and flocculation are going to be used in the...
  3. alienitmeca

    Check valve with perforated disc

    Hello, I am currently working on a water pumping station with an overall capacity of 2200 l/s (nearly 8000 m3/h), the latter is delivering water to a storage tank. The scope of the project includs installing surge tanks to protect the system from water hammer effects. According to the client...
  4. alienitmeca

    EXPANSION JOINT FOR DIESEL PUMP DISCHARGE LINE

    Hello I am currently working on fire fighting project for an oil storage facility, I am designing the piping layout including all its components. Such systems are designed according to NFPA Standards, which state the use of emergency Diesel pumps, these pumps are known to generate a great deal...
  5. alienitmeca

    Check valve Position

    Hello, When designing your piping layout, one would certainly have to use a fair amount of valves of various types (check valves, gate valves, butterfly valves...) to choose one type over the other demand some thinkig along with good engineering skills and operating conditions, My question is...
  6. alienitmeca

    Valve selection for butumen storage facility

    Hello, I am currently working on a bitumen storage facility in Algeria, North Africa, the client has specified that both inlet and outlet lines of the bitumen storage tanks must be "Butterfly", but did not give any specification for the rest of the piping work (such as the line between pumps...
  7. alienitmeca

    Fail mode on valve

    Hello everyone, I am elborating a datasheet for a control valve to be used in fire fighting project. While researching, I came across the term "fail mode" which means that I should choose whether the valve is going to be either open or closed in case of power failure (according to process)...
  8. alienitmeca

    Water pump discharge line

    Hello, In a fire fighting project that I, and my coworkers are designing, we seem to have a bit of probleme at the discharge line of a water pump (Q= 1115 m3/h, P= 15 bars). As matter of fact, we had an elbow (LR) at the discharge nozzle, but when we rechecked on site restrains, we had to...
  9. alienitmeca

    Valve offer approval

    Hello to all, I am new in valve ingineering, I have just been assigned in y new job to check whether a supplier offer is faithful to the client specifications and standards approuved on by both the contractor (the compnay I am working for) and the client (API 600, API 602...) I started to read...
  10. alienitmeca

    Orifice plate design

    Hello to all I am new to Fluid Mechanics, I a currently trying to divide a flow into two pipes with diffrent pressure drop each, The problem I am facing is that the flow must be equally divided, so as a solution I am thinking about using an orifice plate, yet these "instrument" are generally...
  11. alienitmeca

    Foam chamber mounting on Storage tank

    Hello to all I am designing a fire fighting system for hydrocarbons storage facility, in the process of counsulting for foam chambers, I came across a "strange" type of mounting for the latter equipement. The fire fighting equipment supplier proposed for the foam chamber to be mounted directly...
  12. alienitmeca

    Insulated bitumen storage tank configuration

    Dear fellow engineers, I am working on a new bitument storage tank (net capacity of 400 cubic meter), a heating coil system should be implemented on the tank in order to maintain the bitument in a liquid form. The client asked for the tank to be insulated for energy concervation resons which...
  13. alienitmeca

    Annular bottom plate replacement

    Hello this is my first time repairing a fire water open top storage tank designed according to API 650, date of fabrication is 1987, this tank suffers from corrosion in some of the annular bottom plates (according to the inspection report, 02 annular plates are set to be changed). in order to...
  14. alienitmeca

    NFPA 11 : foam expansion ratio for fire fighting

    Hello I am designing a fire fighting system for a storage tank according to the NFPA standard (NFPA 11 to be precise) my question: is the expansion ratio for low expansion foam included in the discharge rate in the NFPA 11? if it is included, what is the ratio thank you in advance
  15. alienitmeca

    NFPA 11: Minimum discharge times for cooling water and foam application

    Hello I'm designing a fire fighting system for a storage tank (150 m3 / gasoil), feeding a gasoil dispensing unit NFPA 11 indicates rates and discharge times for cooling water and foam application. cooling water : 60 minutes foam application for extinghshing tank on fire : 20 minutes foam...
  16. alienitmeca

    design of lifting lugs for horizontal tank

    Hello I am designing a gasoil under grounde storage tank, I need to design adequat lifting lugs, I am mainly concerned with the tank behavior when lifted (tank weight) and ofcourse the behavior of lifting lugs, Is there a code that could help in this calculation NB: tank is empty when...
  17. alienitmeca

    Compression ring per API std 620

    Hello, i am asking this questions for reference only: when designing a compression ring, these factors must be calculated: Q (total circomferential force) and Ac (the net area to resist the compression fore): QUESTION: -in the case of finding Ac much bigger for than the participating area...
  18. alienitmeca

    API 620 shell thickness calculation

    hello, API 620 uses computed values for meridonal and latidunal unit forces T1 an T2 in order to determine shelle thickness, the formula used for the calculation contains many factors such as W and F, questions: -segnificance of W -segnificance of F, any insights on the subject could...
  19. alienitmeca

    Annular bottom plate thickness per API 650

    hello, while calculating the thickness of annular bottom plates, i needed to determine the stress in first shell course which can be calculated using the formula in table 5.1a (5.1b). the formula in table 5.1a (5.1b) states two thicknesses in both product and hydrostatic test stress...
  20. alienitmeca

    API 620 tank design

    hello i am designing a vertical storage tank per API 620, i find this standart quit difficult to work with, specially when designing the shell and the roof, i could use a sample of the calculation, if possible, or any advice, thank you in advance

Part and Inventory Search

Back
Top