In a chemical plant 240kmol combustible gas mixture with 20% excess air is fed into a burner unit. The gas product from the burner is cooled to remove all the water to
yield a dry gas. The Orsat analysis of this flue gas shows that for every 2kmol CO2
produced; 3kmol CO is produced. (Ratio of CO2 /CO produced is 2/3)
Analysis of the combustible gas mixture fed into the burner: 60% CH4, 20% C2H4, 10%
CO, 5% O2 , 5%N2
2.1 Calculate the amount of water removed from the system (kmol)
2.2 Calculate the amount of air fed into the system (kmol)

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?