liquid water is fed to an evaporater at a rate of 50 kg/s the product steam...
liquid water is fed to an evaporater at a rate of 50 kg/s the product steam leaves the evaporator at 40c the required rate of heat addition is estimated to be 12,0345kw. list at least 5 assumptions that had to be made to arrive at this result
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liquid water is fed to an evaporater at a rate of 50 kg/s the
product steam...
please solve all of them awestion 3 (35 pts) water at Tjz1SC is heated in a chamber by mixing it with steam at paa300 kPaond TR320С The saturated liquid water and the steam enter the mibxing cham...
please solve all of them
awestion 3 (35 pts) water at Tjz1SC is heated in a chamber by mixing it with steam at paa300 kPaond TR320С The saturated liquid water and the steam enter the mibxing chamber through separate and independent inlet pipes. The saturated liquid water enters the mixing chamber at a rate of 3.0 kg/s, and the chamber loses heat to the surrounding air at 30 Cat a rate of 12 kW. The mixture leaves the mixing chamber...
(12). An evaporator is fed with 10000 kg/hr of a solution containing 1% solute by weight....
(12). An evaporator is fed with 10000 kg/hr of a solution containing 1% solute by weight. It is to be concentrated to 1.5% solute by weight. The feed is at a temperature of 37°C. The water is evaporated by heating with steam available at a pressure of 1.34 atm absolute, corresponding to a temperature of 108.3°C. The operating pressure in the vapor space is 1 atm absolute. Boiling point elevation and other effects can be neglected. The condensate leaves at...
An air-water vapor mixture enters a heater-humidifier unit at 5°C, 100 kPa, 50% rh. The flow rate of dry air is 0.1 kg/s. Liquid water at 10°C is sprayed into the mixture al the rate of 0.0022 kg/s. The mixture leaves the unit at 30°C, 100 kPa. Calculate
An air-water vapor mixture enters a heater-humidifier unit at 5°C, 100 kPa, 50% rh. The flow rate of dry air is 0.1 kg/s. Liquid water at 10°C is sprayed into the mixture al the rate of 0.0022 kg/s. The mixture leaves the unit at 30°C, 100 kPa. Calculate (a) the relative humidity at the outlet (b) the rate of heat transfer to the unit
3 Steady state open systems steam generator (20 marks) In the steadystate operation of a steam...
3 Steady state open systems steam generator (20 marks) In the steadystate operation of a steam generator, compressed liquid water at P 20 MPa and T 40 °C enters a 25 mm diameter tube at a rate of 5 L/s. Steam exits the tube at Pe 10 MPa and Te 400°C Compressed liquid water in 20 MPa, 40c Hot combustion Hot combustion air Superheated stcam out 10 MPa, 400 (a.) Find the inlet (v) and outlet velocity (Ve) in m/s:...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C inside a heat exchanger by saturated steam. The steam enters the heat exchanger as saturated vapor at 100 kPa and leaves as saturated liquid at the same pressure. The heat exchanger losses heat at a rate of 20 KW. The mass flow rate of the steam is most nearly: 0.185 0.101 0.748 0.548 0.312 0.243 0.443 0.085
Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s. The seawat...
Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s. The seawater enters the condenser at 25°C and leaves at 42°C. Find the mass of cooling water circulated per hour. Take the specific heat capacity of the sea water as 4.2 kJ/kgK. Qmc(t2 and Qsteam=Qcooling water (hint: use
Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s....
A bituminous coal is burned with air in a boiler furnace. The coal is fed at a rate of 40000 kg/h and has an ultimate analysis of 76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt% non-...
A bituminous coal is burned with air in a boiler furnace. The
coal is fed at a rate of 40000 kg/h and has an ultimate analysis of
76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt%
non-combustible ash. Air enters a preheater at 30 °C and 1 atm with
a relative humidity of 30%, exchanges heat with the hot flue gas
leaving the furnace and air enters the furnace at temperature Ta
(°C). The flue...
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...
An evaporator operating continuously is fed a caustic brine solution at 8000 kg/hr flow rate. The...
An evaporator operating continuously is fed a caustic brine solution at 8000 kg/hr flow rate. The solution consists of 6% NaCl, 90% water and 4% NaOH by mass. In the evaporator, water is boiled away, some of the NaCl precipitates and is removed by filtration, and NaOH remains in the concentrated liquor. The liquid exiting the evaporator has the following analysis: 1% NaCl, 42% NaOH and 57% water. Draw the schematic of the process and then determine the water vaporized,...
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic...
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic mixing chamber where it is mixed with compressed liquid water at 1 MPa, 50 C. The exiting mass flow is 100 kg/s of saturated liquid at 1 MPa. For steady state operation, determine a) te mass flows of steam and liquid that enter, b) the rate of entropy generation due to throttling, and the rate of entropy generation due to mixing, c) te associa...
please solve all of them
awestion 3 (35 pts) water at Tjz1SC is heated in a chamber by mixing it with steam at paa300 kPaond TR320С The saturated liquid water and the steam enter the mibxing chamber through separate and independent inlet pipes. The saturated liquid water enters the mixing chamber at a rate of 3.0 kg/s, and the chamber loses heat to the surrounding air at 30 Cat a rate of 12 kW. The mixture leaves the mixing chamber...
(12). An evaporator is fed with 10000 kg/hr of a solution containing 1% solute by weight. It is to be concentrated to 1.5% solute by weight. The feed is at a temperature of 37°C. The water is evaporated by heating with steam available at a pressure of 1.34 atm absolute, corresponding to a temperature of 108.3°C. The operating pressure in the vapor space is 1 atm absolute. Boiling point elevation and other effects can be neglected. The condensate leaves at...
3 Steady state open systems steam generator (20 marks) In the steadystate operation of a steam generator, compressed liquid water at P 20 MPa and T 40 °C enters a 25 mm diameter tube at a rate of 5 L/s. Steam exits the tube at Pe 10 MPa and Te 400°C Compressed liquid water in 20 MPa, 40c Hot combustion Hot combustion air Superheated stcam out 10 MPa, 400 (a.) Find the inlet (v) and outlet velocity (Ve) in m/s:...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C inside a heat exchanger by saturated steam. The steam enters the heat exchanger as saturated vapor at 100 kPa and leaves as saturated liquid at the same pressure. The heat exchanger losses heat at a rate of 20 KW. The mass flow rate of the steam is most nearly: 0.185 0.101 0.748 0.548 0.312 0.243 0.443 0.085
Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s. The seawater enters the condenser at 25°C and leaves at 42°C. Find the mass of cooling water circulated per hour. Take the specific heat capacity of the sea water as 4.2 kJ/kgK. Qmc(t2 and Qsteam=Qcooling water (hint: use
Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s....
A bituminous coal is burned with air in a boiler furnace. The
coal is fed at a rate of 40000 kg/h and has an ultimate analysis of
76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt%
non-combustible ash. Air enters a preheater at 30 °C and 1 atm with
a relative humidity of 30%, exchanges heat with the hot flue gas
leaving the furnace and air enters the furnace at temperature Ta
(°C). The flue...
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...
An evaporator operating continuously is fed a caustic brine solution at 8000 kg/hr flow rate. The solution consists of 6% NaCl, 90% water and 4% NaOH by mass. In the evaporator, water is boiled away, some of the NaCl precipitates and is removed by filtration, and NaOH remains in the concentrated liquor. The liquid exiting the evaporator has the following analysis: 1% NaCl, 42% NaOH and 57% water. Draw the schematic of the process and then determine the water vaporized,...
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic mixing chamber where it is mixed with compressed liquid water at 1 MPa, 50 C. The exiting mass flow is 100 kg/s of saturated liquid at 1 MPa. For steady state operation, determine a) te mass flows of steam and liquid that enter, b) the rate of entropy generation due to throttling, and the rate of entropy generation due to mixing, c) te associa...
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