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Q.Explain working of Steam Drum?
Total solids concentration in the steam at steam manifold outlet shall not exceed 0.5 ppm during steady operation at MCR. Fabricator must indicate the maximum acceptable total dissolved solids concentration in the boiler water when operating normal drum water level.
The normal water operating level in the steam drum shall be not less than 25 mm (1") below the drum center line. In the drum, the surface area of the normal operating water level shall be sized based on 100% MCR, such that the maximum surface release rate shall not exceed 3,900 kg/m2h (800 lb/ft2h).
Water hold-up between fabricator's stated normal water level and top downcomer level shall be sufficient to enable operating at 100% MCR for at least five minutes in the event of loss of boiler feed water supply. This resident time design shall include ramping rate of 20% MCR per minute.
The water surge volume in the steam drum shall be adequate to accommodate the resultant swell from increase in load of 20% of MCR per minute without actuating the low water level cut-off.
Necessity of Transmission System The main purpose of Transmission system is to provide a means to vary the torque ratio between the engine and the road wheels. It means th
If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is tallow = 90 MPa, and the allowable normal stress for the 13-mm-diameter rod is sallow = 15
Space mass and weight: The geometric region occupied by bodies called as space. When body changes its position w. r.t. the other bodies, then body is known to be in motion.
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
Q. Material selection by temperature range 750° to 1100°F (400° to 600°C) ? Plain carbon steels are usually limited to a maximum operating temperature of 750°F (400°C). There
What different of blow hole and pin hole
Thin wall round tube has diameter of 60mm. The end of it will be compressed to square for. How many percents torsion strenght will become lower at the end tube?
Reciprocatin Compressor. It is taken in use to compressor gases. ( kE 2 - kE 1) = 0, ( pE 2 - pE 1) = 0 q 1-2 - w 1-2 = ( h 2 - h 1 ) + 0 + 0 - q 1-2 - (- w
Piston: It is a cylindrical component fitted into the cylinder forming the moving boundary of the combustion region. It fits perfectly (snugly) into the cylinder providing a gas-
Q. What is IFD in project management? The P&IDs now reflect the next intermediate stage of development and incorporate any changes requested by the Customer during the IFA revi
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