Explain about ducts and flues in steam generators, Mechanical Engineering

Assignment Help:

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.


Related Discussions:- Explain about ducts and flues in steam generators

Hazard identification in plant layout, Risks associated with identified haz...

Risks associated with identified hazards can be reduced to a reasonable level through the application of good design principles that are focused on integrating safety into the over

Fracton steam, calculate the dryness fractin of steam which has 1.5kg of wa...

calculate the dryness fractin of steam which has 1.5kg of water in suspension with 50kg of steam

Explain concept of tapping of radial drilling machine, Explain concept of T...

Explain concept of Tapping of radial drilling machine Tapping:- Tapping is the method by which internal threads are produced. It is performed either by hand or by machine.

Design a pipeline and pump station to pump water, Design Problem:  Design a...

Design Problem:  Design a pipeline and pump station to pump 100 MGD of water to the Mississippi river.  To reduce the required horsepower of the pumps, the flow will be pressurized

Supply chain management, Supply Chain Management: In this unit, you ha...

Supply Chain Management: In this unit, you have learned that the supply chain is the network of autonomous and semi-autonomous business entities, which are include through ups

Stresses., temparature stresses in composite bars

temparature stresses in composite bars

Laser welding applications with low power, Laser Welding Applications with ...

Laser Welding Applications with Low Power   For a lap weld joining of AISI 416 stainless steel cap to a AISI 310 stainless steel body, CO 2 Laser with a 575 watts beam out

Camshaft-basic components of engine , Camshaft : The camshaft controls th...

Camshaft : The camshaft controls the opening and closing of the two valves. The associated parts are push rods, rocker arms and valve springs. The camshaft is driven by a camchai

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd