16th Combustion Symposium (INCOS2022), Aydın, Türkiye, 8 - 11 Eylül 2022, ss.1-10
LPG (Liquefied Petroleum
Gas) is a colorless, odorless, combustible gas that is heavier than air,
obtained by distillation of crude oil in refineries or by separating from
natural gas, liquefied under a certain pressure. LPG consists of hydrocarbons
such as propane (C3H8), butane (C4H10), and their isomers or mixtures. LPG is
more preferable due to its low carbon emission and its higher heat value and
efficiency, and it is also more environmentally friendly than other fuels. It
is widely used in residences, industry, and vehicles as fuel and because of
these advantages, the consumption of LPG increases over the world.
In this study, the
combustion characteristics of cold flow and flame in a household cooker have
been experimentally investigated. The flame temperature, gas flow velocity, and
combustion emissions of LPG in the household cookers for two flow rates
(maximum and minimum) under laboratory conditions were measured. The pressure
of LPG used in the study is 2-3 bar and consists of a mixture of 70% butane and
30% propane. The domestic cooker has three different sizes of cookers, and each
cooker is called according to the diameters of the flame outlet as Cooker 1,
Cooker 2, and Cooker 3, respectively. The outer diameter of the Cooker 1 is 8
cm, the outer diameter of the Cooker 2 is 7 cm, and the that of the Cooker 3 is
5 cm. Within the scope of the investigation, the fixed flame exit point was determined
in each cooker, and the temperatures, velocities, and emissions of gas flows
were measured based on the reference point. The measurement range is from the
point where the exit point (0 cm) to 3 cm (including 3 cm) range with 0.5 cm
intervals. The horizontal, vertical, and diagonal measurements starting from
the exit point of the flame were performed at maximum flow and minimum flow
rate. The results are presented in the following graphical figures.
In our household cooker,
Cooker 1 is 0.6 lt/min at maximum flow rate and is 0.2 lt/min at minimum flow.
When Cooker 2 is 0.25 lt/min at the maximum flow rate, and at minimum flow 0.1
lt/min; Cooker 3 is 0.2 lt/min at the maximum flow rate and 0.1 lt/min at
minimum flow.