Calculation of gas-air mixture mixer

Offering remote earnings on the Internet. It is necessary to calculate the geometric parameters of the mixer of the supply of vapour and gas mixture (PGS) from the installation of the secondary processing of hydrocarbons supplied to the afterburning chamber.
In the mixer, the PGS shall be mixed with atmospheric air. The excess oxygen should be 2.2.
Question:
1. Geometric parameters of mixer confusor
2. Geometric parameters of mixing chamber
3. Geometric parameters of the difusor.
4. Nozzle diameter.
5. Volume of air supplied
6. Pressure of the supplied atmospheric air.
Description.
Characteristics of the PGS:
1. Volume of 1000 cubic meters./h
2. Composition:
A. 30% - light hydrocarbons
B. 70% steam, air.
3. Temperature to 100 degrees.
4. Feed pressure from 0.1 to 0.5 bar.
5. Diameter of the PGS pipeline - DU150
Characteristics of the gas afterburning chamber.
1. It's 6,000 mm long.
2. It's 900 mm in diameter.
3. The diameter of the exhaust shaft is 300 mm.
4. The length of the mine is 6000 mm
5. The temperature in the chamber is 1000 0C
6. The heat source is a 500 kW diesel burner.
7. Fuel consumption - 46 kg / h.
8. Fuel is diesel.
9. The atms. Air duct dimeter - DU150