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  • Users: liberoSimulation
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  1. liberoSimulation

    Fuel gas to HP steam

    Any quick estimate figure of how much fuel gas (ton) to produce 1 tone of HP steam (44 barg and 400 C). Fuel gas composition can be assumed to be 82.7 mol%C1,5 mol%C2, and 12 nol%N2 (I know that there is a way of finding heating value of the steam and calculate the required fuel fired but I...
  2. liberoSimulation

    Sphere Price

    I'd like to find out the price of the sphere (Mixed Butanes Sphere) with the following cases: 1- ID 19.2 m , Design Temperature=90 C, Design Pressure = 12.9 barg, Total volume = 3704m3 2- same as above except total volume is half (5o%) The Material is CS for both cases Any help or software can...
  3. liberoSimulation

    Ehylene transer

    I need to know from you if it is possible to send ethylene liquid at -100C with a 22 km pipeline. What are the difficulties and design requirements to be implemented to do this transfer. Thank you Best regards Libero
  4. liberoSimulation

    Need Spare PSV

    I'm evaluating the need of installed spare PSV for many PSVs for a plant under design development. Does anyone have experience in cases where installed PSV is provided to allow maintenance work of the other PSV? Any experience is more than welcome Cheers
  5. liberoSimulation

    Bypass of Kickbacks

    I don't know if this is the right place to post a question with respect to the kickback lines of the centrifugal compressors. Does any one can share his experience in an application where bypass lines are provided for min flow recycles (Kickbacks) of a big centrifugal compressor for some...
  6. liberoSimulation

    Applications of Blinds

    As everybody knows that any plant has so many blinds for positive isolation of equipment and with various types of blinds such as figure 8, spacer and blind, slip blind or vapor blind. My questions: 1- Does any one can give from his experience the applications of such blinds and the types used...
  7. liberoSimulation

    Vapor Pressure of n-Butane

    As I don't have books or reverences available with me now, can any one help in giving me the Vapor pressure on n-Butane at two temperature levels 6 and 50 C. Any help is highly appreciated Cheers
  8. liberoSimulation

    Industry Standards

    I'm looking for the popular industry standards as ASME, API ASTM..etc Can anyone give references of websites that give such standards without fees (i.e. FREE)? Most of the ones I have found are not free Any help is highly appreciated Cheers
  9. liberoSimulation

    Service Provider vs Client On Eng.

    I'm always wondering who has much experience and skills and engineering background, the service provider (Vendor, Contractor) or the client (Company owner) Everybody would say the service provider should be the much better knowledgeable of engineering aspects than the client. Therefore, I think...
  10. liberoSimulation

    The 10/13 Rule

    Any help in below thread thread330-135888 Cheera
  11. liberoSimulation

    10/13 Rule

    We are in the design of heat exchangers and myself not sure where 10/13 rule (That is Design Pressure of low pressure side on HE should be 10/13 times the Design pressure of the higher pressure side) should be applied. Is this requirement driven by API standard and due to hydrotest requirement...
  12. liberoSimulation

    Cold Box HE

    Can any one give his experience or opinion of having a filter (or strainer) on all entering streams to a Cold Box HE made of Brazed Al material. If having filter (or strainer) is very important, do you strongly recommend of having a spare one The application I have is a big cold box to b...
  13. liberoSimulation

    Surge (or hold-up) Time of Sump towers

    I'd like to know the surge requirement of sump tower with thermosyphone reboiler (i.e. time required from LLL to HLL). The company I'm working with is using about 15 minutes and applying this to all process plants regardless of the plant capacity. I hope that I can get answers from the...
  14. liberoSimulation

    MBA online

    Does anyone get MBA degree online? Dose is it help in grade promotion? Which universities u recommend that have good rank worldwide, fees are not expensive, pogramm is not long and easy to take online? I am a senior process eng. (with MS degree in Chemical Eng.) and looking after MBA degree...
  15. liberoSimulation

    Need of Pressure Safety valve

    I'd like to understand the need of PSV any each equipment assuming that each equipment is considered and treated individually. Is this correct and is it based on CODE or STANDRAD requirements ? Regards
  16. liberoSimulation

    Centrifugal Compressor Discharge Pressure

    Does anyone have an idea about the proper design discharge pressure of a big centrifugal compressor (Driven by 60MW steam turbine). I think API calls for shut off pressure that is much higher than the max operating discharge pressure. If this is the case, piping and downstream equipment located...
  17. liberoSimulation

    Corrosion allowance

    I have a question with respect to corrosion allowance for piping and vessels. What is the criteria that determines CA of for any process piping or equipment? I know the more corrosive service a high CA to be considered but do no know a reference or standard giving the recommended CA for various...
  18. liberoSimulation

    Pump minimum flow recycle control

    I need to hear from you about controlling the min flow of a centrifugal pump by pressure differential control (Pressure discharge minus suction pressure of the pump). What I have seen in such application is that flow controller is used with a predetermined flow set point from the pump...
  19. liberoSimulation

    PSA unit

    Does anyone can provide me the frequent problems that occur for the PSA unit as a new PSA unit is to be built in a new plant. From your experience, there are some major problems with the design or operation of PSA that I would like to know. Also, from safety point of view, what are major things...
  20. liberoSimulation

    Material Selection

    Any help to find T-P range of the following tade material names: LTCS (low temperature CS) KCS (Killed CS) I have a little background about the material properties and selection in general as my field is not much related to such interesting area. Any help is appreciated Regards to all

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