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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.
Determine the vertical de?ection in the beam along the centreline and state the maximum de?ection.
Resistance Seam Welding This is similar to spot welding except that the copper alloy electrodes are in the form of circular rollers. The overlapping sheets are held under const
Draw the bending moment and shear force diagram for the following cases : a) A cantilever beam of length (L) carrying a Point load (W)at its free end. b) A simply supported b
A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the
Q= In an investigation of the thermodynamic properties of alpha-manganese,the following heat contents determined H 700 - H 298 = 2895 cal/g-atm H 1000 - H 298 = 5450 cal
Q. Storage and Handling of Epoxy Powder? Coating materials shall be stored, handled and applied in strict accordance with procedures as outlined by the coating manufacturer, ex
Define Supports Pins and Jack Pins When the work is clamped directly in the body of the jig or fixtures, there is always a chance of error due to improper supports on accounts
Q. Painting of structural components of skid? Sandblasting and priming shall be carried out prior to assembly, and shall include all bolt holes, flange faces, etc. Flange gaske
When and why the Multi-plate clutch is used ? Illustrate the working and constructional features of a multi-plates dry clutch. Describe clearly the necessity of a transmission s
what are the complications of a binary vapour cycle?
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