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.

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

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

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...

Air at a pressure of 350 kPa, a temperature of 80°C, and a velocity of 180...

Air at a pressure of 350 kPa, a temperature of 80°C, and a velocity of 180 m/s enters a convergent–divergent nozzle. A normal shock occurs in the nozzle at a location where the Mach number is 2. If the air mass flow rate through the nozzle is 0.7 kg/s, and if the pressure on the nozzle exit plane is 260 kPa, find the nozzle throat area, the nozzle exit area, the temperatures upstream and downstream of the shock wave, and...

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.

An adiabatic air compressor with inlet conditions of 100 kPa, 27 C and an exit pressure...

An adiabatic air compressor with inlet conditions of 100 kPa, 27 C and an exit pressure of 500 kPa has an inlet volume flow rate of 5 m3/s and operates in steady flow. Calculate the minimum power required to drive the compressor.

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.

An air compressor operating in adiabatic steady flow takes in air at 17 C, 200 kPa...

An air compressor operating in adiabatic steady flow takes in air at 17 C, 200 kPa and discharges is at 1300 kPa. Calculate the minimum work required to drive the compressor assuming the compressor has i) constant specific heats. ii) non-constant specific heats.

1) At 24 C the vapor pressure of water is 3 kPa. The vapor pressure of...

1) At 24 C the vapor pressure of water is 3 kPa. The vapor pressure of water over a sample is 2 kPa, what is the water activity of the sample? 2) The water activity above a saturated NaCl solution is 0.75. If a sample is enclosed in a jar with the NaCl solution and equilibrium is achieved, what is the water activity of the sample? NaCl and the sample are in separate containers within the jar.

The vapor pressure of water at 32 degrees C is 4.76 kPa. A glass of water...

The vapor pressure of water at 32 degrees C is 4.76 kPa. A glass of water in sealed in a a 1.00L container filled with air at 32 degree C. After the water comes to equilibrium with the air in the container, the total pressure is 1 bar and there is 500 g of liquid water in the glass. a. What will be the partial pressure of water vapor in the container? b. If 35.0 g of ethylene glycol is...

A geothermal single effect water lithium bromide is operating between 10 kPa and 1 kPa, and...

A geothermal single effect water lithium bromide is operating between 10 kPa and 1 kPa, and between lithium bromide concentrations of 60% and 55 0/0 . The solution heat exchanger effectiveness is 0.9. The generator temperature is 110 degrees * C and the absorber temperature is 45.81 degrees * C . The refrigerant mass flow rate is 0.2 kg/ s. Calculate a. The cooling load of the evaporator b. The mass flow rate of the rich solution leaving the generator...

Subjects