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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.
Refractoriness The capability of a material to withstand the action of heat devoid of appreciable deformation of softening is submitted to as refractoriness. Such property is m
(a) What do you mean by vibration and the terminology used in it to be defined? (b) A body is subjected to two Harmonic motions as provided below x 1 = 10 sin (wt + π/6) and x
explain the properties of acouple
How to describe sensitivity of Governors
Q. Design layout of Storage Tanks in plant? Generally, tanks taking up large areas of the plot are located off-site and storage tanks containing the same product grouped togeth
Calculate the overall fraction defective from all of sample: ABC insurance company desires to design a control chart to check whether insurance claim forms are being correctly
Ask question #Minimum 100 woHeat generated uniformly in Stainless steel plate having k=20 W/m.0C. The thickness of the plate is 1cm and the heat generation rate is 500 MW/m3. If th
Properties of Some Fibres
Indicate size, capacity and noise reducing characteristics of all silencers on plans, including silencers for vane-axial fans. Indicate all acoustical lining on drawings, genera
Q. Explain the Cushion Materials which used in moulding sand? These materials when added to the moulding sand burn and from gases when the molten metal is poured into the mould
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