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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.
Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7m/s velocity, 100 kPa pressure, and 0.95 m 3 /kg volume, and leaving at 5 m/s, 700 kPa, and 0.19
Draw the P-h and T-S diagram for the vapour compression cycle when the vapour after compression is : (i) wet region (ii) dry saturated
A hollow mild steel tube 6 m long 4 cm internal diameter and 6 mm thick is used as a strut with both ends hinged. Determine the crippling load and safe load taking factor of safety
I have got a rusted chassis of a car.I wonder if you can estimate the remaining strength in a longitudial steel beam 6 cm wide x 12 height.
Q. Show Space Considerations for plant? There are particular spacing constraints which need particular care and attention when optimizing the layout area utilization in both ne
what is dry ness fraction?
A person climbs up a escalator in 60s . When he stands on it , then he is carried in the moving escalator in 30s . How much time will he take in climbing up in a moving escalator?
Equation of motion of lift: Write equation of motion of lift when move up and when move down Assume, W = Weight carried by lift m = Mass carried by lift = W
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Q. What is the procedure of hot working? A process is defined as hot working if it takes place when the workpiece is above the recrystallization temperature. Hot Working Ad
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