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Q. Explain about Ducts and Flues in steam generators?
All air ducts and gas flues connecting the forced draft fan, fan intake silencer, preheater, and transition piece at the generator outlet shall be supplied.
Ducting shall be of continuous seal welded construction to ensure air tightness, with gasketed / flanged connections for field assembly.
Ducting shall be adequately reinforced and stiffened.
Ducting design shall be based on maximum discharge fan pressure at minimum design temperature. Maximum velocity in intake duct shall be 60 ft/s (18.3 m/s). Maximum velocity in flue gas shall be 90 ft/s (27.5 m/s).
Ducting shall be sized to limit the dynamic head at the point of maximum velocity to no more than ten percent of the burner pressure drop at firing conditions.
Minimum thickness of air ducting shall be 3/16 in (5 mm) for air ducting and 1/4 in (6 mm) for flue gas ducting.
Solid Modeling Design Create a solid model for one of the following case studies listed below (all subsystems/subassemblies are indicative): Use Solid Works CAD software. A- Ca
(a) Illustrate First Law of Thermodynamics for a Closed System undergoing a change of state and show that ‘Energy' is a property of the system. (b) A cylinder contains 1 m 3 of
Various applications of numerical methods in the field of m=numerical engineering.
Lifting machines: Basic definitions of the lifting machines and some lifting machines have been described. For each of these machines, derivation of the formulae for mechanica
Q. Which functions used for coating? • Improves arc stability by providing certain chemical which have this ability, by ionizing the path of arc. • Provides a protective gaseou
Q. Method of construction - Plant layout? Plant layout is influenced by the intended method of construction, whether the plant is being constructed on-site, or whether modules
Illustrate vacancy defect and screw dislocation with diagram. Also show the induced nature of stress and stress by mean of diagram. Illustrate interstitial defect and edge disl
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Ask question EMC#Minimum 100 words accepted#
Maximum Bending Moment: The SF changes sign at A, among A and B and at B. Let a section XX at a distance x from the end C as illustrated in Figure SF at section XX, F x
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