Explain working of steam drum, Mechanical Engineering

Assignment Help:

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.


Related Discussions:- Explain working of steam drum

CHEMISTRY, EXPALIN PREPARATION OF LYOPHILIC AND LYPHOBIC SOLS

EXPALIN PREPARATION OF LYOPHILIC AND LYPHOBIC SOLS

Tolerances, difference between geometric and amnufacturing tolerances

difference between geometric and amnufacturing tolerances

Determine the number of leaves and initial curvature, Determine the number ...

Determine the number of leaves and initial curvature: A leaf spring with a span of 1.40 m consist width and thickness of leaves to be 100 mm and 12 mm respectively. The maximu

Estimate the cutting time, Estimate the Cutting Time A surface 115 mm ...

Estimate the Cutting Time A surface 115 mm wide and 250 mm long is to be rough milled with a depth of cut of 6 mm by a 16-tooth cemented carbide face mill 150 mm in diameter.

IDE101, Polygon law of forces

Polygon law of forces

Reinforced earth walls, Reinforced Earth Walls: When constructing ROB...

Reinforced Earth Walls: When constructing ROBs, fly-overs and underpasses, it is often not possible to provide sloped earthen embankments for the approaches, which are as hig

Engineering curves, how to draw parabola by parallelogram method..?

how to draw parabola by parallelogram method..?

Determine the magnitude and nature of the stresses, Determine the magnitude...

Determine the magnitude and nature of the stresses: A thin spherical hollow steel shell of 400 mm diameter & 5 mm thickness is immersed into a liquid container pressurized to

Diffrence between external diameter and internal diameter, Diffrence betwee...

Diffrence between external diameter and internal diameter: A compound tube is built by shrinking one tube on another, the ultimate dimension being, 80 mm internal diameter, 16

Relation between stress and strain, Relation between stress and strain: ...

Relation between stress and strain: The relation between stress and strain is generally shown by plotting a stress-strain (σ -e) diagram. Stress can be plotted on ordinate (ve

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