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

Density and specific volume - thermodynamics, DENSIT Y (ρ ): Density ...

DENSIT Y (ρ ): Density is defined as mass per unit volume; Density = mass/ volume; = m/v, kg/m 3 P for Hg = 13.6 × 103  kg/m 3 for water = 1000 kg/m 3 Specifi

Define the analytical solid modeling, Analytical Solid Modeling (ASM) A...

Analytical Solid Modeling (ASM) ASM is closely related to finite element modeling. It is developed to aid designers in the arduous task of modeling complex geometry commonly fo

IDE101, Polygon law of forces

Polygon law of forces

Internal and external diameters - solid shaft, Internal and external diamet...

Internal and external diameters - solid shaft: Two shafts are of the similar material, length & weight. One is solid & of 100 mm diameter, the outer is hollow. If hollow shaft

Determine the response of the system, A force F(t) is suddenly applied to a...

A force F(t) is suddenly applied to a mass m which is supported by a spring with a constant stiffness ‘K'. After a short period of time T, the force is suddenly removed. In the mea

If crankshaft oil seal seating area found ok, If crankshaft oil seal seatin...

If crankshaft oil seal seating area found ok : Replace with a new oil seal and ensure the seal seats in the stator plate properly and while fixing the stator plate ensure using sta

Setting-up an enterprise , SETTING-UP AN ENTERPRISE :  Setting up an Enter...

SETTING-UP AN ENTERPRISE :  Setting up an Enterprise begins with an idea but it happens after understanding detailed guidelines and manuals on how to start up an enterprise includ

Plot the root locus diagram for a system, Plot the root locus diagram for a...

Plot the root locus diagram for a system whose open loop transfer function is Evaluate the range of values for K for system to be stable.

Classification of welding based on mode of energy transfer , Classification...

Classification of welding Based on Mode of Energy Transfer Energy is converted from one form to another. Any form of energy can be converted to heat energy, which can be used f

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