Engineering, 15.07.2021 21:10 nataliamontirl6079
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
Answers: 1
Engineering, 04.07.2019 18:10
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?
Answers: 1
Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
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Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
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In a chemical plant 240kmol combustible gas mixture with 20% excess air is fed into a burner unit. T...
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