A) Estimate the lifetime of a 40µm diameter carbon particle assuming diffusionally-controlled combustion at the conditions given below : 1) Carbon density =1900 kg/m^3 2) Gas phase density = 0.2 kg/m^3 3) Mass diffusivity (D) = 1.57*10^-4 m^2/s 4) YO2, ∞ = 0.233 5) YCO2, s = 0
A) Estimate the lifetime of a 40µm diameter carbon particle assuming diffusionally-controlled combustion at the conditions given below : 1) Carbon density =1900 kg/m^3 2) Gas phase density = 0.2 kg/m^3 3) Mass diffusivity (D) = 1.57*10^-4 m^2/s 4) YO2, ∞ = 0.233 5) YCO2, s = 0
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A) Estimate the lifetime of a 40µm diameter carbon particle assuming diffusionally-controlled combustion at the conditions given below :
1) Carbon density =1900 kg/m^3
2) Gas phase density = 0.2 kg/m^3
3) Mass diffusivity (D) = 1.57*10^-4 m^2/s
4) YO2, ∞ = 0.233
5) YCO2, s = 0
B) Consider a 0.8 mm diameter nozzle hole with ΔP=34.3 MPa. The diesel fuel sprays into compressed air at 25 kg/m^3 density and 6.2 MPa pressure. Prior to compression, the air was at 1 atm and 25deg C. Calculate the total cone angle (θ) of the spray
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