A mixing chamber takes in a stream of R134-a at 1 MPa and 12◦C and a...

A mixing chamber takes in a stream of R134-a at 1 MPa and 12◦C and a second stream at 1MPa and 60 ◦C. The first stream has twice the mass flow of the second; m₁ = 2m₂ No data is given about the stream 3 exiting the mixing chamber. Therefor, you will need to make two approximations typical for mixing chambers. One is that the pressure changes across the chamber are negligible. You are asked to find the exit temperature and the exit quality if it is defined. Construct all phases that are not given in a Pv diagram. Label the lines with their values.

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genius_generous answered 2 years ago

Water is heated in a mixing chamber by mixing it with hot water coming from a...

Water is heated in a mixing chamber by mixing it with hot water coming from a heater. The mixing chamber loses heat to the surroundings at a rate of 5 kW. The hot water enters the mixing chamber at a rate of 1 kg/s. The mixed water leaves the chamber fully mixed. - The cold water enters the mixing chamber at 200 kPa and 20°C at a velocity of 3 m/s - The hot water enters at a pressure of...

Consider the mixing process shown in the figure. A mixing chamber initially contains 2 liters of...

Consider the mixing process shown in the figure. A mixing chamber initially contains 2 liters of a clear liquid. Clear liquid flows into the chamber at a rate of 10 liters per minute. A dye solution having a concentration of 0.75 kilograms per liter is injected into the mixing chamber at a constant rate of r liters per minute. When the mixing process is started, the well-stirred mixture is pumped from the chamber at a rate of 10+r liters per...

Water at 300kPa and 20oC is heated in a chamber by mixing it with superheated steam...

Water at 300kPa and 20oC is heated in a chamber by mixing it with superheated steam at 300kPa and 300oC. The cold water enters the chamber at a rate of 1.9 kg/s. Calculate the mass flow rate of the superheated steam, if the mixture leaves the chamber at 60oC. answer is ______kg/s If necessary, define system and energy flows shown on sketch. Complete solution shown analytically before numbers.

Water at 80°F and 20 psia is heated in a chamber by mixing it with saturated...

Water at 80°F and 20 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. If both streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. Include a heat loss rate of 200 kW and a net mass flow rate of the combined streams of 4 lbm/s.

Mixing of citric acid takes place in a 12-liter capacity tank. The tank has initially (t...

Mixing of citric acid takes place in a 12-liter capacity tank. The tank has initially (t = 0), 4 Liters of fresh water (no citric acid). Citric acid solution stream at 0.1 kg/L concentration enters the tank at a rate = 0.1 L/min. The citric acid solution leaves out from a nozzle in the tank at a rate = (t+1) L/min. Assume the tank is well-mixed and no reaction takes place. 1. Sketch and label the tank and show if...

In a thermally isolated mixing chamber cold water at 50oC and 1MPa is heated steadily by...

In a thermally isolated mixing chamber cold water at 50oC and 1MPa is heated steadily by a steam at 200oC and 1MPa. The mixture leaves the chamber at 150oC. 1.mass ratio of the hot and cold streams 2 entropy generation rate per unit cold water mass flow rate

Steam undergoes a state change from 450°C and 3.5 MPa to 150°C and 0.3 MPa. Determine...

Steam undergoes a state change from 450°C and 3.5 MPa to 150°C and 0.3 MPa. Determine ΔH and ΔS using the following: a. Steam table data b. Ideal gas assumptions (be sure to use the ideal gas heat capacity for water). (ANS: 0.0717 kJ/kg-K; -576.8 kJ/kg; 0.143 kJ/kg-K; -555.71 kJ/kg)

An adiabatic mixing chamber with operating pressure of 180 kPa is used to mix cold water...

An adiabatic mixing chamber with operating pressure of 180 kPa is used to mix cold water and hot water. The hot water enters at 80°C with mass flow rate of 4.1 kg/s. The cold water enters the chamber at 39°C and the mixture leaves at a temperature of 45°C. Determine (a) the mass flow rate of the cold water and (b) the rate of entropy generation during this process.

1.If the applicable discount rate is 12%, what is the present value of the following stream...

1.If the applicable discount rate is 12%, what is the present value of the following stream of cash flows? Round to the nearest cent. Cash Flow Year 1: $4,000 Cash Flow Year 2: $12,000 Cash Flow Year 3: $12,000 2.Someone says they’ll give you $19,000 in exactly 8 years. If the applicable discount rate is 10%, compounded annually, how much would you be willing to loan them today in exchange? Round to the nearest cent. 3.You’d like to buy a...

Water in a piston-cylinder assembly is at 1 MPa, 500◦C. There are two stops, a lower...

Water in a piston-cylinder assembly is at 1 MPa, 500◦C. There are two stops, a lower one at which Vmin = 1 m3 and an upper one at Vmax = 3 m3. The piston is loaded with a mass and outside atmosphere such that it floats when the pressure is 500 kPa. This setup is now cooled to 100◦C by rejecting heat to the surroundings at 20◦C. a. Show the path of the process on T-V and P-V diagrams. b....

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