TY - JOUR
T1 - The investigation of flame length of buoyancy-controlled gas fire bounded by wall and ceiling
AU - Tao, Changfa
AU - He, Yaping
AU - Zhuang, Yuan
AU - Qian, Yejian
AU - Cheng, Xiaozhang
AU - Wang, Xishi
PY - 2017
Y1 - 2017
N2 - This paper presents an experimental investigation into the total flame length of a buoyancy-controlled jet flame bounded by a wall and ceiling. The flames produced by square jet nozzles with different aspect ratios and various heat release rates were studied. Depending on the nozzle configuration, when the buoyancy-controlled and wall-bounded jet flame impinged on the ceiling, it was observed to form a half-ellipse-shaped ceiling jet flame. Similar to free-standing flames, the total dimensionless flame length of the wall- and ceiling-bounded jet flame can be correlated with a power function of the dimensionless heat release rate using a coefficient of proportionality. However, this coefficient is no longer a constant, but is a function of the ceiling height.
AB - This paper presents an experimental investigation into the total flame length of a buoyancy-controlled jet flame bounded by a wall and ceiling. The flames produced by square jet nozzles with different aspect ratios and various heat release rates were studied. Depending on the nozzle configuration, when the buoyancy-controlled and wall-bounded jet flame impinged on the ceiling, it was observed to form a half-ellipse-shaped ceiling jet flame. Similar to free-standing flames, the total dimensionless flame length of the wall- and ceiling-bounded jet flame can be correlated with a power function of the dimensionless heat release rate using a coefficient of proportionality. However, this coefficient is no longer a constant, but is a function of the ceiling height.
KW - aspect ratio (aerofoils)
KW - fuel
KW - gas
UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:42743
U2 - 10.1016/j.applthermaleng.2017.08.123
DO - 10.1016/j.applthermaleng.2017.08.123
M3 - Article
SN - 1359-4311
VL - 127
SP - 1172
EP - 1183
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
ER -