Combustion Midterm

Fuel

is any substance, natural or artificial which upon combustion releases heat energy

Combustion

is synonymous to oxidation and is the union of oxygen and combustible materials.

Proximate Analysis

is an analysis of the composition of fuel which gives, on mass basis, the relative amounts of moisture content

Ultimate Analysis

is an analysis of the composition of fuel which gives, on mass basis, the relative amounts of carbon, hydrogen, oxygen, nitrogen, sulfur ash and moisture.

Higher Heating Value

Also known as Gross Calorific Value

Higher Heating Value

is the heating value obtained when the water in the products of combustion is the in the liquid state.

Lower Heating Value

Also known as Net Calorific Value

Lower Heating Value

is the heating value obtained when the water in the products of combustion is in the vapor state.

Theoretical Weight of Air

is the exact theoretical amount as determined from the combustion reaction of air needed to burn a unit amount of fuel

Actual Weight of Air

the weight of air supplied for combustion is necessarily in excess of what is theoretically required. The volumetric analysis of the dry flue gas can be used to calculate the _____________

Orsat Apparatus

are analyzed using gas analyzer known as the _______

HydroCarbon Fuels

consist mainly of combustible elements carbon and hydrogen.

CnHm

the chemical formula of hydrocarbons

HydroCarbon Family

the value of the subscripts m and n depends on the _____