A gas mixture with a volumetric composition of 35% CO + 65% N2 is burned with fuel, 63% excess air. Fuel enters the furnace at 100 0C and air enters at 25 0C. Calculate the adiabatic (theoretical) flame temperature.

b) Ethane gas at 1 bar and 25 oC is compressed adiabatically to 55 bar in a steady-state flow process for which W = 10 J mol-1. Assume ethane is ideal gas at its initial state and the residual enthalpy of the gas at its final state is - 3270 J/mol, and its heat capacity is constant (CP = 4.5 R), the temperature of ethane at the final state, i.e., after compression, is

i. 403.3 oC; ii. 403.3 K; iii. 130.1 oC; iv. 130.1 K v. Other

c) Air enters the opening of a jet engine of an airplane flying at Mach 2.2. We want to convert the kinetic energy of the incoming airflow to pressure before the air is introduced to the entrance of a compressor, which is to compress the air stream to a pressure that is slightly higher than that in the combustion chamber. To increase the efficiency of such a conversion of energy, we should design the engine entrance channel as a diffuser so that

i) dP/dx > 0 ii) du/dx < 0; iii) dA/dx < 0; iv) I, ii, and iii ; v) None

Answer BOTH and EXPLAIN WHY

Butane is burned with air. No CO is present in the combustion products. Perform a DOF analysis to prove that the molar composition of the product gas can be determined if the percentage excess air and the percentage conversion of butane are specified

Indicate risk or environmental concern associated with the following parameters when receiving on water sink, if it was not treated.

BOD, COD, TPH, PAH, TKN, Sulfate, Phenols, PCBs

Derive Navier0Stokes equations for the 'agitated vessel'.

Show the range of temperatures that can be achieved by burning acetylene under various conditions.

Coal analysis indicates 72.6 wt.% C, 18% H and 4% S and balance non combustion ash. Coal burned in a reactor with 20 percent excess air. Calculate the mole composition of the stack gas ?