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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.
A piece of Al weighing 6 kg and initially at a temperature of 300 O C is suddenly immersed in a fluid at a temperature of 20 O C. The convectice heat transfer coefficient is 58 W/m
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
Define the Basic Components of an N.C System The basic components of an N.C system are as follow: a) Programmer of Instruction: - It is a set of direction which will tell th
prove that the sensitiveness of a proell governor is greater than that of a porter governor
1. I have a data for displacement versus time ( graph) then I want to get the velocity and acceleration graphs from the displacement.How can I get it?
In Figure P4.2 , ?1 = 200 rad/s cw and a1 = 4000 rad/s2 cw, Find the acceleration of points B, C, and D and the angular acceleration of link 2?
Stores for hazardous substances shall be segregated from, and located at a safe distance from accommodation spaces and control room. Indoor storage areas require access from an ope
Determine the acceleration of the body: Two weights P and Q are associated by the arrangement shown in Figure. Neglecting friction and the inertia of the pulleys and cord, det
A paint manufacturing company has a manufacter function Q = K+ √L. For this manufacter function MPK = 1 and MPL = 1=(2√L). The rm faces a price of labor w that equivalent $1 per u
Editing Dimensions The dimension edit commands, DIMEDIT and DIMTEDIT are used basically to adjust the position of the text part of a dimension. This is usually only necessary,
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