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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.
Electrical System: Electrical system consists of a battery, spark plug, lighting system, ignition system, charging system and electricity generator. These components of electrical
Space mass and weight: The geometric region occupied by bodies called as space. When body changes its position w. r.t. the other bodies, then body is known to be in motion.
Keywords used in appropriate technology: Hill Roads : Roads in hilly and mountainous terrain. Landslides : The slippage of mass of hill face. Retaining Walls : Str
Centre of Gravity and Moment of Inertia: - For a uniform plate of mass M, the overall mass may be divided into individual masses M i for which centre of gravity is known as
where expendable pattern is used?
Explain the subtractive process of Rapid Prototyping
Q. What is Slush moulding? Slush moulding is an excellent method for producing open-end objects. It is an inverse process of dipping, in which the inside of the mould is coated
Example of change of enthalpy: Q 0.5kg/s of a fluid flows in steady state process. The properties of fluid at the entrance are measured as p 1 = 1.4bar, density = 2.5k
(a) Illustrate critical damping and its uses. (b) A horizontal spring mass system with coulomb damping has a mass of 5 Kg attached to a spring of stiffness 1KN/m. if the coeffic
what are the tests to carried out after mockup preparation
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