Evaluate boiler efficiency, Mechanical Engineering

Assignment Help:

The following data were obtained in a boiler trail:

Mass and temperature of feed water: 680 kg/hr and 200C, Steam temperature and its pressure : 15bar and 3000C, Coal used and its calorific value: 98kg/hr and 26500kg/kg, Flue gas formed and its temperature at chimney: 18kg/kg of coal supplied and 3000C, Ash and unburnt coal in ash pit:

44kg/hr with 2200 kj/kg calorific value, Mean specific heat of flue gases and feed water: 1kj/kgK and 4.187 kj/kgK. If the ambient temperature in the boiler room is 280C, Evaluate the:

i) Boiler efficiency,

ii) Equivalent evaporation from and at 1000 C,

iii) Percentage heat unaccounted,

iv) Draught produced in mm of water column if the height of chimney in 50 m.


Related Discussions:- Evaluate boiler efficiency

Maximum stress in each material, The maximum stress in each material: ...

The maximum stress in each material: A copper tube of external diameter 60 mm and internal diameter 40 mm is closely fitted to a steel rod of 40 mm diameter to compose a compo

The dimension style command-autocad, The Dimension Style Command The Di...

The Dimension Style Command The Dimension Style command can be used to change appearance of dimensions. The best method  to create a new style before you can start creating dim

Calculate the net positive suction head, A pump station has been designed t...

A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level.                    Liquid condit

What are rectangular combined footings, What are rectangular combined footi...

What are rectangular combined footings? Rectangular Combined Footings: In the design of rectangular combined footings it is assumed that the footing is rigid. Soil pressure

Determine the angular acceleration of the motion, Determine the angular acc...

Determine the angular acceleration of the motion: A flywheel of mass 15 kg and radius 20 cm is wound by a rope that carries a weight A of mass 5 kg at its free end as illustra

What do you mean by dilution method, Q. What do you mean by Dilution method...

Q. What do you mean by Dilution method? Dilution methods are more suited especially in hilly streams and torrents where current meter measurements are not feasible on account o

Applications of high temperature materials, Q. Applications of high tempera...

Q. Applications of high temperature materials? A brief description of materials of construction used for common high temperature components in furnaces, boilers, superheaters,

Embrittlement-metallurgical defects, Embrittlement For use, at high str...

Embrittlement For use, at high strength, coupled with good notch toughness, all weld structure must  be Tempered low carbon martensite. Carbon and alloy steels having more than

CNC Machining, how to determine proper the depth of cut for the tool if the...

how to determine proper the depth of cut for the tool if the drill is made of HSS and the work piece is made of alluminume alloy?

Find the cycle efficiency, Develop an EES Code for a Rankine cycle with reh...

Develop an EES Code for a Rankine cycle with reheat and with 2 open feedwater heaters.  The cycle is shown below:  Use the following conditions: 1.  700 psi, 850F 2.  500

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