A hot-water stream at 80°C enters a mixing chamber with a mass flow rate of 0.56...
A hot-water stream at 80°C enters a mixing chamber with a mass flow rate of 0.56 kg/s where it is mixed with a stream of cold water at 20°C. If it is desired that the mixture leave the chamber at 42°C, determine the mass flow rate of the cold-water stream. Assume all the streams are at a pressure of 250 kPa. The enthalpies are 335.02 kJ/kg, 83.915 kJ/kg, and 175.90 kJ/kg. The saturation temperature at a pressure of 250 kPa is 127.41℃.
The mass flow rate is _______ kg/s
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A hot-water stream at 80°C enters a mixing chamber with a mass flow rate of 0.56...
1: A hot-water stream at 95°C enters a mixing chamber where it is mixed with a...
1: A hot-water stream at 95°C enters a mixing chamber where it is mixed with a stream of cold water at 25°C. Assume all the streams are at a pressure of 350 kPa. It is desired that the mixture with a mass flow rate of 0.7 kg/s leaves the chamber at 39°C. Each enthalpy is given by hi hf@95°c = 350 kJ/kg h2 z hr@25°C = 83 kJ/kg h = hf@ 39°C = 175 kJ/kg a. Write down the mass...
Liquid water at 300 kPa and 20°C is heated in a chamber by mixing it with...
Liquid water at 300 kPa and 20°C is heated in a chamber by mixing it with hot water at 300 kPa and 90°C. Cold water enters the chamber at a rate of 1.8 kg/s. If the mixture leaves the mixing chamber at 60°C, determine the mass flow rate of the hot water required
Review View Help Mailings - Do - A Search Al a B - Aabbccdd AaBbccod AaBbc...
Review View Help Mailings - Do - A Search Al a B - Aabbccdd AaBbccod AaBbc AaBbccl Aa 1 Normal 1 No Spac... Heading 1 Heading 2 Title Paragraph Styles A cold stream of 0.4 kg/s at 20°C enters a mixing chamber where it is mixed with a stream of saturated vapor. If it is desired that the stream after mixing is at 50°C, determine the mass flow rate of the vapor stream. Assume all the streams are at a...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
In engineering applications, the steady-flow mixing of two streams of the same fluid is another common...
In engineering applications, the steady-flow mixing of two streams of the same fluid is another common process. The section where the mixing process takes place is referred to as a mixing chamber, as shown in Figure Q4. The mass flow rate and the energy of the flowing fluid for the inlets, are shown in the figure. Knowing that the amount of heat loss to the surrounding is 5.5 kW. Determine the energy carried from this rigid mixing chamber by the...
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T,...
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T, 20-C -200 kP Water Unknown quality P, 200 kPa Mixing Chamber Saturated water vapor P 200 kPa What is the enthalpy for the cold water (stream 1)? What is the enthalpy for the saturated vapor (stream 2)? If both the streams enter the mixing chamber at the same mass flow rate of 0.8 kg/s, determine the enthalpy of the exiting stream.
20 ℃ Liquid water is flowing into a chamber with a mass flow rate of 1.5...
20 ℃ Liquid water is flowing into a chamber with a mass flow rate of 1.5 kg/s and heated by mixing it with a superheated steam at 300 ℃. For a specified mixing temperature at 60 ℃, what is the mass flow rate of the steam we need to set and what is the mass flow rate of the 60 ℃ water we can get? Assume: • Mass flow rate ?̇ is the mass change per unit time, with the...
Liquid water at 300 kPa and 25°C is heated in a chamber by mixing it with...
Liquid water at 300 kPa and 25°C is heated in a chamber by mixing it with steam at 300 kPa and 200°C as in the figure below. Liquid water enters the chamber at a rate of 3.0 kg/s, and the chamber is estimated to lose heat to the surrounding air at 25°C at a rate of 35 kW. If the mixture leaves the mixing chamber at 300 kPa and 120°C, establish: a. Mass flow rate of the superheated steam, kg/s...
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters...
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters...
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe
1: A hot-water stream at 95°C enters a mixing chamber where it is mixed with a stream of cold water at 25°C. Assume all the streams are at a pressure of 350 kPa. It is desired that the mixture with a mass flow rate of 0.7 kg/s leaves the chamber at 39°C. Each enthalpy is given by hi hf@95°c = 350 kJ/kg h2 z hr@25°C = 83 kJ/kg h = hf@ 39°C = 175 kJ/kg a. Write down the mass...
Liquid water at 300 kPa and 20°C is heated in a chamber by mixing it with hot water at 300 kPa and 90°C. Cold water enters the chamber at a rate of 1.8 kg/s. If the mixture leaves the mixing chamber at 60°C, determine the mass flow rate of the hot water required
Review View Help Mailings - Do - A Search Al a B - Aabbccdd AaBbccod AaBbc AaBbccl Aa 1 Normal 1 No Spac... Heading 1 Heading 2 Title Paragraph Styles A cold stream of 0.4 kg/s at 20°C enters a mixing chamber where it is mixed with a stream of saturated vapor. If it is desired that the stream after mixing is at 50°C, determine the mass flow rate of the vapor stream. Assume all the streams are at a...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
In engineering applications, the steady-flow mixing of two streams of the same fluid is another common process. The section where the mixing process takes place is referred to as a mixing chamber, as shown in Figure Q4. The mass flow rate and the energy of the flowing fluid for the inlets, are shown in the figure. Knowing that the amount of heat loss to the surrounding is 5.5 kW. Determine the energy carried from this rigid mixing chamber by the...
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T, 20-C -200 kP Water Unknown quality P, 200 kPa Mixing Chamber Saturated water vapor P 200 kPa What is the enthalpy for the cold water (stream 1)? What is the enthalpy for the saturated vapor (stream 2)? If both the streams enter the mixing chamber at the same mass flow rate of 0.8 kg/s, determine the enthalpy of the exiting stream.
Liquid water at 300 kPa and 25°C is heated in a chamber by mixing it with steam at 300 kPa and 200°C as in the figure below. Liquid water enters the chamber at a rate of 3.0 kg/s, and the chamber is estimated to lose heat to the surrounding air at 25°C at a rate of 35 kW. If the mixture leaves the mixing chamber at 300 kPa and 120°C, establish: a. Mass flow rate of the superheated steam, kg/s...
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