Diesel density in gas

Rickard.Solsjo · June 14, 2010, 09:18

Is it possible to calculate the density of diesel number 2 as a function of temperature or pressure? Seems rather difficult

smehdi609 · June 15, 2010, 16:27

You must write you own themo model to be able to do that

Rickard.Solsjo · June 23, 2010, 05:10

Seems like no-one know.
What I did was instead to find the boiling temperature for diesel with 10-17 carbonatoms. The molecular weight is found just by adding the constituents of the carbohydrate, 12*#C+#H.
Thereafter I used some reference data from sandia experiments, by for e.g. Pickett, to get the ambient parameters and injection drop.
I used the equation of state to get the ambient pressure and then this pressure to get the fuel density. Since the injection pressure into a sandia bomb is about 1100bar or something like that, the density is about 200kg/m3

June 14, 2010, 09:18	Diesel density in gas	#1
Rickard.Solsjo Senior Member Rickard Join Date: May 2010 Location: Lund, Skåne, Sweden Posts: 143 Rep Power: 15	Is it possible to calculate the density of diesel number 2 as a function of temperature or pressure? Seems rather difficult

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June 15, 2010, 16:27		#2
smehdi609 Member M. Mahdi Salehi Join Date: Mar 2009 Location: Vancouver, BC, Canada Posts: 50 Rep Power: 17	You must write you own themo model to be able to do that

June 23, 2010, 05:10		#3
Rickard.Solsjo Senior Member Rickard Join Date: May 2010 Location: Lund, Skåne, Sweden Posts: 143 Rep Power: 15	Seems like no-one know. What I did was instead to find the boiling temperature for diesel with 10-17 carbonatoms. The molecular weight is found just by adding the constituents of the carbohydrate, 12*#C+#H. Thereafter I used some reference data from sandia experiments, by for e.g. Pickett, to get the ambient parameters and injection drop. I used the equation of state to get the ambient pressure and then this pressure to get the fuel density. Since the injection pressure into a sandia bomb is about 1100bar or something like that, the density is about 200kg/m3