Jetfire Cone

Post on 22-Oct-2014

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Transcript of Jetfire Cone

Gas material Propane

Keterangan Simbol

Gas Velocity of expanded jetWind Velocity vVelocity ratio R

Air density

Density of gas under std conditionTemperature of gas in the expanded jet Tj

Density of gas in the expanded jet

Gravity acceleration g

Angle between the hole axis and horizontal

Angle between the hole axis and the wind vector

Unchocked Flow

Throat diameter of an imagined flow nozzle

uj

ρa

ρºg

ρj

θj

θjv

do

Effective diameter of the source

Actual Length of Flame (No wind)

Actual Length of Flame (With wind)

Angle between axis of the orifice and that of the flame

Ds

LBo

LB

α (R<0.05)α (R>0.05)

Nilai Satuan

m/sm/s

#DIV/0! -

K

#DIV/0!

9.8

º

Chocked Flow

m Gas mass flow m

Molecular weight (in kilogram)

Mach Number of the expanded jet

Absolute Atmospheric Pressure

Universal Constant of Gas

kg/m3

kg/m3

kg/m3

m/s2

Mk

Maj

Po

Rc

Ratio of the specific heats of the gas γ

Virtual source diameter of the exit hole

#DIV/0! m Effective diameter of the source

#DIV/0! m Actual Length of Flame (No wind)

#DIV/0! m Actual Length of Flame (With wind)

Angle between axis of the orifice and that o#DIV/0!#DIV/0!

dj

Ds

LBo

LB

α (R<0.05)α (R>0.05)

kg/s

kg/mol

-

J/kmol.k

N/m2

-

#DIV/0! m

#DIV/0! m

#DIV/0! m

#DIV/0! m

#DIV/0!

Gas material Propane

Keterangan Simbol

Gas Velocity of expanded jetWind Velocity vVelocity ratio R

Air density

Density of gas under std conditionTemperature of gas in the expanded jet Tj

Density of gas in the expanded jet

Gravity acceleration g

Angle between the hole axis and horizontal

Angle between the hole axis and the wind vector

KUnchocked Flow

Throat diameter of an imagined flow nozzle

uj

ρa

ρºg

ρj

θj

θjv

do

Effective diameter of the source

Actual Length of Flame (No wind)

Actual Length of Flame (With wind)

Angle between axis of the orifice and that of the flameα

Lift off Distance of the frustrum of the fire b (wind)b (no wind)

Length of Fustrum by Geometry RL

Ds

LBo

LB

α (R<0.05)α (R>0.05)

Nilai Satuan

m/sm/s

#DIV/0! -

K

#DIV/0!

9.8

º

#DIV/0!Chocked Flow

m Gas mass flow m

Molecular weight (in kilogram)

Mach Number of the expanded jet

Absolute Atmospheric Pressure

kg/m3

kg/m3

kg/m3

m/s2

Mk

Maj

Po

Universal Constant of GasRatio of the specific heats of the gas γ

Virtual source diameter of the exit hole

#DIV/0! m Effective diameter of the source

#DIV/0! m Actual Length of Flame (No wind)

#DIV/0! m Actual Length of Flame (With wind)#DIV/0!

Angle between axis of the orifice and that o#DIV/0!#DIV/0!#DIV/0! Lift off Distance of the frustrum of the fire b (wind)#DIV/0! b (no wind)#DIV/0!

Rc

dj

Ds

LBo

LB

α (R<0.05)α (R>0.05)

kg/s

kg/mol

-

N/m2

J/kmol.k-

#DIV/0! m

#DIV/0! m

#DIV/0! m

#DIV/0! m#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!