Problem 6. Assume ethane combustion in air: C₂H6 +20₂ = 2CO₂ + 3H₂O a. Find LFL, UFL, and LOC (limiting oxygen concentra
Posted: Fri Jul 08, 2022 6:08 am
Problem 6. Assume ethane combustion in air: C₂H6 +20₂ = 2CO₂ + 3H₂O a. Find LFL, UFL, and LOC (limiting oxygen concentration) (5) b. If LOL and UOL of ethane are 3.0% fuel in oxygen and 66% fuel in oxygen, respectively, please find the stoichiometric line and draw a flammability diagram of ethane (grid lines are provided in the next page). Identify LOL, UFL, LFL, UFL, LOC line, air-line, stoichiometric line, and flammability zone. (10) c. If an ethane tank needs to be out of service, please calculate out of service fuel concentration (OSFC). Please redraw the flammability diagram of ethane and identify the out-of-service lines in the flammability diagram. (5) d. After the maintenance of the ethane tank, we need to bring the tank into service. Please calculate the percentage of N₂ need to be added prior to fill ethane to the tank. Please show the tank into service line in the flammability diagram. (5)