Engineering, 26.11.2019 19:31 alyxkellar06

Astream of air at 500°c and 835 torr with a dew point of 30°c flowing at a rate of 1515 l/s is to be cooled in a sprayed cooler. a fine mist of liquid water at 25°c is sprayed into the hot air at a rate of 110.0 g/s and evaporates completely. the cooled air emerges at 1 atm.

a. calculate the final temperature of the emerging air stream, assuming that the process is adiabatic. (suggestion: derive expressions for the enthalpies of dry air and water at the outlet air temperature, substitute them into the energy balance, and use a spreadsheet to solve the resulting fourth-order polynomial equation)
b. at what rate (kw) is heat transferred from the hot air feed stream in the spray cooler? what becomes of this heat?

Answers: 2

Show answers

Another question on Engineering

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.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Answers: 2

Answer

Engineering, 04.07.2019 19:10

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?

Answers: 3

Answer

Engineering, 04.07.2019 19:10

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj

Answers: 2

Answer

You know the right answer?

Astream of air at 500°c and 835 torr with a dew point of 30°c flowing at a rate of 1515 l/s is to be...

Questions