Engineering
Engineering, 13.09.2019 21:30, babygirl6571

The coal supplied to a furnace bad the following composition: carbon 85.5, hydrogen 5.0, oxygen 4.0 and incombustibles 5.5. during a test it was found that the ashes discharged from the furnace contained 0.015 kg of unburnt carbon per kg of coal supplied to the furnace. the analysis of the dry flue gas showed co2, 14.5% and co 1.3% by volume. calculate the mass of air supplied and the complete volumetric composition of the flue gas.

answer
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, abdirahmansoloman
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
image
Engineering, 04.07.2019 18:10, aliopqwas
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
Answers: 1
image
Engineering, 06.07.2019 02:30, Nonniel0v3
An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?
Answers: 3
image
Engineering, 06.07.2019 03:10, tyheath42
Steel balls 12 mm in diameter are annealed by heating to 1150 k and then slowly cooled to 400 k in an air att 325 k and h -20 w/m2 k. assume the properties of the steel to be k- 40 w/m k, p 7800 kg/m3, and cp 600 j/kg k. a. determine whether lumped system method can be used to analyze this problem and if so why" b. determine the time required for the cooling process. c. determine the total amount of heat lost from each ball to the ambient air
Answers: 1
Do you know the correct answer?
The coal supplied to a furnace bad the following composition: carbon 85.5, hydrogen 5.0, oxygen 4.0...

Questions in other subjects: