Ultimate Analysis: Find RAF & RGF with Excess Air 20%

  • Thread starter Thread starter darkmagic
  • Start date Start date
  • Tags Tags
    Analysis
Click For Summary
SUMMARY

The discussion focuses on calculating the Relative Air Fuel (RAF) and Relative Gas Fuel (RGF) from the ultimate analysis of a fuel sample with a carbon content of 88.3%, hydrogen content of 9.5%, sulfur content of 1.4%, and ash content of 0.8%. Additionally, it addresses the computation of sulfur dioxide (SO2) and particulate matter concentrations when excess air is set at 20%. The participants confirm that while the RAF and RGF calculations are understood, the challenge lies in adjusting these calculations to account for the specified excess air.

PREREQUISITES
  • Understanding of ultimate analysis in fuel chemistry
  • Knowledge of combustion chemistry and stoichiometry
  • Familiarity with calculating emissions such as SO2 and particulate matter
  • Experience with excess air concepts in combustion processes
NEXT STEPS
  • Research how to adjust RAF and RGF calculations for excess air conditions
  • Learn the methodology for calculating SO2 emissions based on fuel composition and excess air
  • Explore particulate matter formation in combustion processes with varying excess air
  • Study combustion efficiency and its impact on emissions in industrial applications
USEFUL FOR

Engineers, environmental scientists, and combustion specialists involved in fuel analysis and emissions calculations will benefit from this discussion.

darkmagic
Messages
164
Reaction score
0

Homework Statement



given the ultimate analysis of the fuel

c - 88.3%
h - 9.5%
o -
n -
s - 1.4%
ash - 0.8%

find the:

a. raf and rgf
b. concentration of so2 and particulate matter if excess air is 20%.

i know how to calculate the raf and rgf, i also know how to compute the so2 and particulate
matter but i don't know to compute them if excess air is given.

what should i do to the excess air = 20%?
 
Last edited:
Physics news on Phys.org
who knows what should i do?
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
3K
Replies
3
Views
4K
Replies
12
Views
6K
  • · Replies 1 ·
Replies
1
Views
3K
Replies
9
Views
9K
Replies
1
Views
6K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 2 ·
Replies
2
Views
4K