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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.
Discuss relative demerits and merits of belt, rope and chain drive for transmission of power and find the condition for transmitting the maximum power in a flat belt drive.
Ask okokopkpk#Minimum 100 words accepted#
There is risk of wet H 2 S corrosion in all emulsion and gas lines from the Inlet Separator up to and including the Treater. Full compliance to NACE is highly recommended to contro
Determine net work done: 5 m 3 of air at 2bar, 27 0 C is compressed to 6bar pressure following PV 1. 3 = constant. It is expanded subsequently adiabaticall
Q. Design Loads and Load Combinations? The Designer shall determine the following loads and specify them on the Data Sheet. Design loads are defined and classified as follows:
What are the objectives of the earth pressure and retaining structures? After knowing all concepts about the same you should be able to learn: a. Know the field situations w
finding torque
what is the meant by kleins construction?
Q. Corrosion resistance of the nickel-based alloys? The corrosion resistance of the nickel-based alloys can also be significantly affected by other variables such as velocity a
bendind moment equation
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