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Recent content by stventech

  1. stventech

    API 650 Service Test

    Gentlemen, We are in the situation in which our newly constructed tanks (U&O Area)shall undergo a hydrostatic test. Nevertheless , the contractor is suggesting to proceed with the Service Test instead of hydrostatic test. Could anyone can point out on API 650 which allows this practice?
  2. stventech

    Ear Lug Design

    Hi Tom, Can you provide me the formula of how to get the following angles on Lifting Lug (Ear Lug) Design. Lift angle at maximum lug stress. Lift angle at maximum weld stress. Lift angle at maximum pad weld stress. Thanks, stventech
  3. stventech

    Nozzle load on rectangular vessel

    As we know that WRC 107 & WRC 297 only cover for nozzle on cylindrical and spherical shell, how about nozzle on rectangular shell? How to calculate stress due to nozzle load on rectangular vessel (not design as per ASME VIII App.13)? Can any body give me the reference books for calculation it?
  4. stventech

    Dismantling of Tower (Column)

    We are in the situation of dismantling a 78ft high scrubber column and relocate to another area for service. The contractor suggests cutting the column in half due to limited road access. Q: Is this advisable, does we it need further examination after erection?
  5. stventech

    Internal design pressure less than 15psig

    Thus a slight Pressure (less than 15psig) can be consider for Internal Design Pressure just to get the result as per ASME Section VIII Div.1.
  6. stventech

    Concrete Tank for Oil Storage

    Let me know if concrete tank is applicable for oil storage.
  7. stventech

    Underground Concrete Tank Farm

    My concern is how to design the tanks in identical dimensions. In order to achieve such condition, I need to design the tank with ID=7.165m & H=25m (300nos.), on the other hand an overlap tank design (150 buried + 150 partially buried) will have an ID=10.13m & H=12.4m. Primarily this tank farm...
  8. stventech

    Underground Concrete Tank Farm

    300 (pcs.) tanks will going to construct on that area (121000 sq. meters)with capacity of 300,000 cu. meter for oil storage. API 650 is for Steel welded above ground Storage tanks and we are talking her about concrete build tanks therefore API 650 difinitely not applicable in this job. yes it...
  9. stventech

    Underground Concrete Tank Farm

    I have received a proposal to design a Large Underground Concrete Storage Tank Farm (equivalent to 300 nos. of tank to fit in an Area=12100sq.m and Capacity of 300M Ltrs.). I am very well verse in Designing Storage Tank as per API 650 but never in my experience to design in such condition. Any...
  10. stventech

    Deflector Plates

    I am working at the deflector plates on each end of the drum and were wondering if the plates have to be bent to fit the curvature of the heads or can we just miter the corners of the plate and fit it into the head as a flat sheet. In addition to miter corner of the plate, slots is provided at...
  11. stventech

    Underground Steel Welded Storage Tank Design

    I have received a proposal to design a Large Underground Steel Welded Storage Tank for fuel oil. I am very well verse in Designing Storage Tank as per API 650 but never in my experience to design in such condition. Any one could provide me a reference on this regard.

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