subject
Engineering, 03.04.2021 03:10 kirstennnash

Consider the compression step of an ordinary vapor compression cycle using ammonia as the working fluid. The inlet to the compressor is saturated vapor at 10 C and approximately 6.25 bar, the outlet is superheated vapor at 10 bar. Approximate the non-ideal PVT-behavior of ammonia in this region by the van der Waal’s EOS. Using the data Tc = 132.4 C, Pc=112.8 bar, and Cv=36.1 kJ/kmol-K (and no other data), derive a set of equations that can be solved simultaneously for the temperature of the outlet stream, assuming the compressor is reversible. Clearly define the set of unknown variables to be solved for in your equations in addition to the outlet temperature. Be sure that your system is ‘square’; i. e., has the same number of independent equations as unknowns. Note that to be solvable your equations must be purely ‘algebraic’–there may not be any unsolved integral terms remaining. Comment on whether or not your equations have a unique solution, and how you would check that a solution found numerically is the correct solution.

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, qwertylol12345
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
image
Engineering, 04.07.2019 18:10, genyjoannerubiera
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
image
Engineering, 04.07.2019 19:10, thawkins79
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
image
Engineering, 06.07.2019 03:20, loveuncondition
Not a characteristic property of ceramic material (a) high temperature stability (b) high mechanical strength (c) low elongation (d) low hardness
Answers: 2
You know the right answer?
Consider the compression step of an ordinary vapor compression cycle using ammonia as the working fl...

Questions in other subjects:

Konu
Mathematics, 29.01.2020 08:59