Engineering, 10.04.2020 18:40 20shearcorr
Combustion air supplied to the furnace burners is preheated with exhaust gas from a furnace in a cross-flow heat exchanger. The exhaust gas has a mass flow rate of 15 kg/s and an inlet temperature of 827 °C. The air has a mass flow rate of 10 kg/s and ambient temperature of 27 °C, and it flows perpendicular to the tubes. The tubes are unfinned, and the overall heat transfer coefficient is 100 W/m2 · K. Determine the total tube surface area required to achieve an air outlet temperature of 577 °C. Take both the exhaust gas and the combustion air to have the same properties of those of ideal air. Do not iterate.
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
Engineering, 04.07.2019 19:10
Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?
Answers: 3
Engineering, 04.07.2019 19:20
The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal
Answers: 3
You know the right answer?
Combustion air supplied to the furnace burners is preheated with exhaust gas from a furnace in a cro...
Questions
Mathematics, 28.02.2020 21:24
Biology, 28.02.2020 21:24
History, 28.02.2020 21:25
English, 28.02.2020 21:25
