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Methane gas is burned completely with 30% excess air at approximately atmospheric pressure. Both the methane and the air enter the furnace at 303.15 K (30°C) saturated with water vapor, and the flue gases leave the furnace at 1773.15 K (1500°C). The flue gases then pass through a heat exchanger from which they emerge at 323.15 K (50°C). Per mole of methane, how much heat is lost from the furnace, and how much heat is transferred in the heat exchanger?
Calculate the power factor for which the voltage regulation becomes zero on full load.
You have two identical containers at a fixed temperature. In one you have water vapor (H2O) and in the other you have carbon dioxide (CO2). In the high-temperature, classical limit for vibrations and rotations, meaning that (rotation angle
Assume a 10 °F temperature between streams in the heat exchangers and a compressor efficiency of 80%.
Steam entering a turbine at 4000 kPa and 673.15 K (400°C) expands reversibly and adiabatically.
Neglecting field-current changes, armature reaction, and armature inductance, find the initial and final values of the armature current and speed corresponding to each step.
Natural gas composed of 60. mol% methane, 30. mol% ethane, and 10. mol% propane at 25 °C and 500. psia is fed at a rate of 50. m3/hr into a boiler. In the boiler it is blended with enough air to provide 20% excess oxygen and combusted.
1. It is desired to use 28.32 m 3 /min of air (metered at a pressure of 101.3 kPa and 294.1 K) in a process. This amount of air which is at rest enters the fan suction at a pressure of 741.7 mm Hg and a temperature of 366.3 K and is discharged at a p..
One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C. Determine the final temperature.
1 kg of liquid water, initially at 40 °C, 2 bar, is heated under constant pressure. If the amount of heat added is 1200 kJ, determine the final temperature and the phase of the system in the final state (if vapor-liquid mixture, report the mass fr..
Chlorine is to be removed from a vent stream by scrubbing with a 5% w/w aqueous solution of sodium hydroxide. The vent stream is essentially nitrogen, with a maximum concentration of 5.5% w/w chlorine.
Individual Assignment - 25% of grade. This SQM plan may be for a religious organization, a city, A&M-Commerce, a manufacturing or engineering organization, the organization for which you work, etc. This is an organization-wide (i.e., company-wide,..
1. In this problem, you learn how to apply the energy balance to a closed system containing an ideal gas with constant Cpfor 3 different processes.
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