Chemical Engineering :: Process Equipment and Plant Design
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Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?
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A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design
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In a __________ rivetted joint, the number of rivets decreases from the innermost row to the outermost row.
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Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness.
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Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is
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Pick out the wrong statement pertaining to the design of the distillation column.
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The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is
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In distillation columns, bubble caps are held in place over trays by
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The buckling tendency of compression members is always in the direction of the
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In case of plain carbon steel, butt welded joints are used for shell plate thickness ≤ __________ cms.
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A.
Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up.
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B.
The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles.
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C.
If sufficient slot area is not provided, the gas may pass through the skirt clearance.
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D.
none of these.
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