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Q. Define Maximum Allowable Working Pressure?
The MAWP to be marked on the Section VIII nameplate is defined as the maximum gauge pressure permissible at the top of a completed vessel in its normal operating position at the designated coincident metal temperature for that pressure. This MAWP may be determined from the design pressure or from calculations, based on the specified nominal component thicknesses, reduced by the specified corrosion allowances.
The maximum permissible set-to-operate pressure of a single safety relief device cannot be higher than the MAWP.
A suitable margin consistent with the uncertainties with which the true maximum mean-metal temperature can be determined should be included. The design temperature for vessels shall be the maximum temperature for which a reduction in maximum allowable stress is not required (6500F (3430C) for carbon steel). If there is a limiting appurtenance, vessel design metal temperature shall be the maximum temperature allowed for that appurtenance at design pressure.
Calculate pressure on each side of spherical ball : Heavy spherical ball of weight W rests in V shaped trough whose sides are inclined at the angles and to the horizontal
Oxides These comprise alumina, magnesia, thoria, beryllia and zirconia. Other oxides that are utilized sparingly due to high cost comprise hafnia, ceria and yttria. Variety of
Q. What is Passive Fire Protection? Passive fire protection is defined as any fire protection system that, by its nature, plays an inactive role in protecting personnel and pro
Air enters the compressor of an ideal air standard Brayton cycle at 100kPa, 250C with a volumetric flow rate of 8m3/s and is compressed to 1000kPa. The temperature at the inlet to
A cantilever beam is loaded with a concentrated. Force of 5kN at the free end. The length of the cantilever beam is 1m having cross section of 50×50mm. determine the equation for b
The crank shaft of a high speed pump has a parallel shaft of 2.5 cm diameter and 48 cm in length. It carries three eccentrics each of 6 cm in diameter and uniform thickness of 1.8
Q. Explain about Post-weld Heat Treatment? Post-weld Heat Treatment (PWHT) shall be in accordance with the Code. PWHT procedures, including properly identified charts or certi
Compute the diameter of a solid shaft: Compute the diameter of a solid shaft transmitting 150 kW at 25 rpm, if the maximum shear stress in the shaft is not to exceed 70 MPa. C
V iolatio n of K-P Statement: A HE produce work 'W' by exchanging the heat with one reservoir at temp. T 1 only. The K-P statement is violated. H.P. is extract
what is roof & truss.kingpost
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