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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.
Explain Gear Forming In gear form cutting, cutting edge of the cutting tool has a shape similar with the shape of the space among the gear teeth. Two machining operations, mill
Determine the mean radius of an open coiled spring: Determine the mean radius of an open coiled spring of helix angle of 38 o , to give a vertical displacement of 20 mm and an
The water jet should not directly fall on speedometer, spark plug, steering cone race and electrical connections. During washing there is a possibility of water entry below the sea
You are required to investigate the dynamic movement of a mass m sliding along a rod as shown in the diagram below. The rod is rotating at a constant angular velocity θ. The mass
can you do it
explain about pnp transistor
Illustrate the steady state error for different types of systems. Check the stability of the system using Routh criterion S 6 + 4S 5 + 3S 4 - 16S 2 - 64S - 48 = 0
Hydrostati c Pressure - Thermodynamics: It is also called as Pressure due to Depth of Fluid. It is needed to determine the pressure exerted by static fluid column on surface,
Q. What is Crest gauges explain? In case of bridges, it is sometimes necessary to observe high flood levels rather than daily gauges to ensure that minimum clearance is not enc
A jet of water moving at 8 m/sec. impinges on a concave-shaped vane to deflect the jet through 120 o when stationary. If the vane is moving at 5 m/sec., calculate the angle of jet
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