A new fuel for combustion was found to have the following composition: carbon 71.6%, hydrogen 4.8%, oxygen 6.3%, nitrogen 1.3%, sulphur 3.4%, moisture 3.5% and ash 9.1%. Calculate for complete combustion per kg of coal: 2.1 The theoretical weight of air per kg of coal. 2.2 The actual weight of air required with 60% excess air. 2.3 The higher heating value (HHV) of coal. 2.4 Write the complete combustion equation and estimate the lower heating value (LHV) of coal.

A new fuel for combustion was found to have the following composition: carbon 71.6%, hydrogen 4.8%, oxygen 6.3%, nitrogen 1.3%, sulphur 3.4%, moisture 3.5% and ash 9.1%. Calculate for complete combustion per kg of coal: 2.1 The theoretical weight of air per kg of coal. 2.2 The actual weight of air required with 60% excess air. 2.3 The higher heating value (HHV) of coal. 2.4 Write the complete combustion equation and estimate the lower heating value (LHV) of coal.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter32: Oil Heat

Section: Chapter Questions

Problem 12RQ: When incomplete combustion occurs, what additional by-products of combustion are created?

See similar textbooks

Similar questions

What products of combustion are produced with ideal combustion when fuel oil is burned?
The rating of the ability of a gasoline to burn smoothly in an internal combustion is its a. octane rating. b. boiling point. c. energy value. d. fuel density. e. molar mass.
What is the pressure ratio in an ideal dual combustion if the pressures at the beginning and end of the constant volume portion of combustion are 2,910.57 kPa and 4,400.43 kPa respectively.
Write the general energy balance for any combustion process. Is my answer correct?
Differentiate complete combustion from incomplete combustion.
What are the combustion mechanisms used in combustion calculations?
Analysis of products of a combustion on a dry basis, when C8H18 was burned with atmospheric air, is as follows:CO2 = 12% CO = 0.75% O2 = 3.01% N2 = 84.24%Compute the percentage theoretical air.
Within the cylinder of an internal combustion engine, gasoline with an ordinary octane rating (C8H18) is intended to burn with an excess of air equal to fifty percent. a) Please display the actual equation for combustion.b) You need to calculate the actual air fuel ratio.c) Figure out the mass of wet products of combustion produced per kilogram of fuel, as well as the mass of dry products of combustion produced per kilogram of fuel
How do you account for the existence of both complete and incomplete combustion? Explain.
Explain why constant-volume combustion gives a higher indicated fuel conversion efficiency than constant-pressure combustion for the same compression ratio.
Incomplete combustion is permitted because a significant amount of heat is still generated. true of false
The heating value of the a dry fuel is 18 MJ/kg. a) Calculate the effective heating value of a fuel with 40% moisture and no flue gas condensation. b) Calculate the heating value of a fuel with 40% moisture and flue gas condensation Evaporation enthalpy H=2257 kJ/kg. Cp=4,2 ( kJ/kg,K) The heating value of a moist fuel is given by this formula: H=H0*(1-f)-f*2,6 (MJ/kg), H0=heating value of dry fuel, f=fraction of water.