Chapter 9, Problem 93P

Consider the feedback controlled blending system shown below, which is designed to keep theoutlet concentration constant despite potential variations in the stream 1 composition. The density of all streamsis 920 kg/m3. At the nominal steady state, the flow rates of streams 1 and 2 are 950 and 425 kg/min,respectively, the liquid level in the tank is 1.3 m, the incoming mass fractions are x1 = 0.27, x2 = 0.54. Noticethe overflow line, indicating that the liquid level remains constant (i.e. any change in total inlet flow ratetranslates immediately to the same change in the outlet flow rate). You may assume the stream 1 flowrate andthe stream 2 composition are both constant. Use minutes as the time unit throughout this problem.   d) Derive the first order process and disturbance transfer functions;Gp= Kp/(tou*s+1) and Gd=Kd/(tou*s+1) and calculate and list the values and units of the parameters. e) Using the given information, write the general forms of Gm, GIP, and Gv below(in terms of…

a) Briefly explain what ratio control is. Give an example of a common chemical engineering situation in whichratio control would be useful and for that example state exactly how ratio control works (what would bemeasured, what is set, and how the controller logic works).b) Briefly explain what cascade control is. Give an example of a common chemical engineering situation inwhich cascade control would be useful and for that example state exactly how cascade control works (whatwould be measured, what is set, and how the controller logic works).

Determine the reaction force acting on the beam AB, given F = 680 N. 5 4 4 m 3 3 A B 30° 3 m F (N)

The frame in the figure is made of an HEA 300 profile (E = 210 GPa, material S355).a) Determine the support reactions at point A. (1p)b) Sketch the bending moment diagram caused by the loading. (1p)c) Using the principle of virtual work (unit load method), calculate the vertical displacement at point B using moment diagrams. Also take into account the compression of the column. (3p)

9 kN/m 6 kN/m 3 m 6 m Bestäm, med hjälp av friläggning och jämviktsberäkningar, tvärkrafts- och momentdiagram för balken i figuren. Extrempunkter ska anges med både läge och värde.

B C 3.0 E F G 40 kN [m] 3.0 3.0 3.0 Fackverket belastas med en punktlast i G enligt figuren. Bestäm normalkraften i stängerna BC, BF och EF.

L q=8 kN/m P= 12 kN En stång belastas av en punklast P vid sin ena ände samt av en jämnt utbredd last q längs hela sin längd. Stången har en tvärsnittsarea A = 150 mm² och är tillverkad av stål med elasticitetsmodul E-210 GPa. Stångens längd, i sitt obelastade tillstånd, är Z-3 m. a) Hur stor är den största normalspänning som uppstår i stången? b) Hur stor blir förlängningen av stången, orsakad av lasterna P och q?

A turbocharged engine with a compression ratio of 8 is being designed using an air standard cycle. The ambient air is assumed to be 300K and 100 kPa. The temperature at the end of the compression in the cylinder is desired to be 1000K, assuming no combustion prior to reaching TDC. At the end of the cylinder expansion the temperature is also desired to be 1000K. If both the turbine and the compressor have mechanical efficiencies of 80%, what will be the pressure ratio of the compressor and what will be the turbine exhaust temperature?

Q6: A turbocharged engine with a compression ratio of 8 is being designed using an air standard cycle. The ambient air is assumed to be 300K and 100 kPa. The temperature at the end of the compression in the cylinder is desired to be 1000K, assuming no combustion prior to reaching TDC. At the end of the cylinder expansion the temperature is also desired to be 1000K. If both the turbine and the compressor have mechanical efficiencies of 80%, what will be the pressure ratio of the compressor and what will be the turbine exhaust temperature?