As per the
definition, flue gas (sometimes called exhaust gas or stack gas) is the gas
that emanates from combustion plants and which contains the reaction products
of fuel and combustion air and residual substances such as particulate matter
(dust), sulphur oxides, nitrogen oxides, and carbon monoxide.
When fuels
are burnt, certain combustion gases are produced; in industries, the gases of
combustion are called “heating gases.” After heating gases transfer their heat
to absorbing surfaces and are sent to the chimneys, they are called the “Flue
Gases.”
So, what do
we know about combustion?
Combustion
is the rapid oxidation of fuel that results in heat & light
As in, 1kg
(C3H8+C4H10) +O2 -> CO2+H2O+10900 Kcal
Stoichiometric
or ideal combustion:
When
available oxygen is just sufficient (neither more nor less) to convert all
carbon into CO2
As in, 2C4H10+13O2+3.76x13N2
-> 8CO2+10H20+3.76x13N2
Hence, our objective
is to come closer to stoich or ideal combustion
Flue gas
analysis is like a pathological test for humans that is preventive and used to
check the performance of the fuel we use for combustion. During the flue gas
analysis, we measure Oxygen, Excess Air, Carbon Monoxide, Carbon Dioxide, Oxides
of Nitrogen, Oxides of Sulphur, Ambient Temperature and Flue Gas Temperature.
We conduct a
flue gas analysis to detect the concentration of different gases and regulate
the burner on a boiler to ensure optimal performance. Flue gas analysis is
essential for evaluating air-to-fuel ratios in combustion for the best
efficiency. Flue gas analysis is done by inserting a probe into the flue of a
boiler, furnace, or other appliance between the last heat exchanger and draft
diverter, or indeed any source of make-up air that may enter the flue that did
not flow through the combustion process.
Here are the
parameters SUPERGAS considers while performing flue gas analysis for the
clients’ benefit:
For
combustion to occur efficiently, whether a facility employs solid, liquid, or gaseous
fuels, an appropriate balance of fuel and air must be reached. With the
pollution laws in place and considering the high calorific value of LPG, it is
the ideal fuel for industries.
Call us on 9121177930 for flue gas analysis and
seamless conversion from polluting fuels to effective and efficient LPG.
