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Design of Horizontal & Short Vertical Vessels
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الأول : هو احنا هناخد إيه النهاردة في السكشن؟ الثاني : هناخد Vessel Design الأول : يوووووووووووووووووه أمال هناخد Reactor امتى؟ الثاني : قصدك على سكشن ال non-isothermal يعني؟ أنا شفت الاعلانات بتاعة السكشن امبارح على ال MBC 2 وقالك : Coming Soon on December فقط وحصريا على شاشة ال MBC 2 الثالث : أنا مش عارف انتو ازاي فايقين ورايقين كدة وقاعدين تقولوا هناخد إيه ومش هناخد إيه ومش حاسين بالكارثة اللي أنا فيها الاتنين في نفس واحد : كارثة إيه يابني؟ !!! الثالث : سؤال بجد مصيري ومحيرني جدا ونفسي ألاقي له إجابة الأول : ياعم ما تخلص وتقول بقى وقعت قلبي الثالث : يا ترى sheet النهاردة كام مسألة؟ !!!!!!!!!!!!!!!!!!!
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In designing short vessels, we firstly calculate the thickness of shell and heads according to the operating pressure [i.e. internal or external]. In this case we will not do checks on the thickness as done in tall vessels so, we will design the support directly.
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The use of lugs is typically limited to vessels of small to medium diameter (1 to 10 ft.) and moderate height-to- diameter ratios in the range of 2:1 to 5:1. And of Course Sheet5: 2 problems
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After calculating f s, you should select the dimension of pipe (lug) and check on your selected dimensions [i.e. check if the lug supports will withstand the load applied on it]. Following are the steps used to select the suitable pipe dimensions: 1.From the following table, assume nominal diameter to get the inside and outside diameter of the pipe. Begin your assumption with nominal diameter = 2" [always take the Schedule number = 80]. Sheet5 : 2 Problems
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2.Calculate the radius of gyration (r) from the following equation: 3.Calculate the value of h’/r. 4.Make the check on the selected pipe dimensions according to the value of h’/r. Those values are summarized in the following table:
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5.If the corresponding check is not correct, assume another nominal diameter [greater than 2"] and repeat the above steps.
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Assume: In order to check on this assumption, use the following formula:
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If σ tension) max = - ve value: the number of bolts equal 4 used for fixation. If σ tension) max = + ve value: the number of bolts calculated from the following equation:
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Hello?! I just want to tell u that sheet5 : 2 problems Hello?! I just want to tell u that sheet5 : 2 problems
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Design of Saddle Support: or
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Sheet5: 2 Problems In Mass Transfer?!
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Assume: I’ll go to the section now. I don’t know which subject but they told me that Sheet5: 2 Problems I’ll go to the section now. I don’t know which subject but they told me that Sheet5: 2 Problems
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Design of Bearing Plate: Assume: Design of Anchor Bolts: only 4 bolts for fixation Sheet5: 2 problems? Yes
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1. A pressurized vessel lined internally with 4 mm Nickel material is to be fabricated and installed out of doors in Mostorod area. The vessel has the following specifications: Shell inside diameter 1.5 m Shell length 4 m Maximum internal pressure 20 atm.gage Operating temperature 150ºC Lug support height 2 m No. of lugs 6 Corrosion allowance 1 / 16 in. Insulation thickness 2 in. Shell material C.steel Allowable tensile strength of material of construction 15000 psi Head type Dished Specify the design for: - Shell & heads. - Lug support, bearing plate & anchor bolts. - Maximum permissible vacuum applied in the vessel.
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2. A process horizontal vessel is to be fabricated and installed out of doors. The vessel has the following specifications: Shell inside diameter 1.1 m Shell length 2.1 m Maximum internal pressure 10 bar Distance between two supports 1.25 m Operating temperature 150ºC Support height 1 m Fluid Heavy hydrocarbon Corrosion allowance 3 mm Insulation thickness 50 mm Shell material Carbon steel Allowable tensile stength of material of construction 1000 kg/cm 2 Type of heads Dished Specify the design for: - Shell & heads. - Support, bearing plate and anchor bolts.
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