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Example 5: Determine the direction of flow by writing the entropy balance for the 2nd law...
The following diagram illustrates a simple steam power plant. A 10kg/s flow of liquid water at...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water....
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water. A steady flow of saturated liquid water enters at 1 at a pressure of P, = 200 kPa and passes through a valve which reduces the pressure to P, = 100 kPa. The resulting mixture enters a separation tank, from which saturated vapour at 4 flows out to a compressor which compresses it to Ps = 300 kPa, while saturated liquid at 3 is...
Urgent An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure...
Urgent
An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure below shows a proposed system for utilizing the combustion products and its steady state conditions. Heat transfer from the outer surface of the steam generator (heat exchanger) and turbine can be ignored, as can the changes in kinetic and potential energies of the streams. There is no pressure drop through the heat exchanger. The combustion product can be modeled as air as an ideal...
please help thermodynamics a) Explain the methods that can be adopted to increase the thermal efficiency...
please help thermodynamics
a) Explain the methods that can be adopted to increase the thermal efficiency of a vapor power cycle. You may use a T-s diagram to explain your reasons. b) A steam regenerative cycle, shown below, is delivering 100 MW of power. Steam from the boller is supplied to the turbine at 8 MPa. 400°C. After expanding isentropically in the 1st stage turbine to a pressure of 1 MPa, steam is taken to the reheater where Its temperature...
please show all work with full steps. thanks 1/4 Thermo I-Take-Home Final Summer 2019 Thermodynamics I:...
please show all work with full steps.
thanks
1/4 Thermo I-Take-Home Final Summer 2019 Thermodynamics I: Final, Summer 2019 (7/30, Tuesday) (Total 200 points) Name: Consider a modern extra-supercritical pressure steam power plant that operates on a reheat-regenerative Rankine cycle with one open feedwater heater, one closed feedwater heater, and one reheater, as shown below. Steam enters the high-pressure turbine at 32 MPa and 700 °C and is condensed in the condenser at a pressure of 10 kPa. Steam exits...
Consider a modern extra-supercritical pressure steam power plant that operates Rankine cycle with one open feedwater...
Consider a modern extra-supercritical pressure steam power plant that operates Rankine cycle with one open feedwater heater, one closed feedwater heater, and one reheater, as shown below. Steam enters the high-pressure turbine at 32 MPa and 700 °C and is condensed in the condenser at a pressure of 10 kPa. Steam exits the high-pressure turbine at 4 MPa and is routed into a reheater (inside the boiler) to be reheated to 640 °C. Steam at P-8 MPa is extracted from...
You are working for a venture capital firm and are tasked with determining if an invention...
You are working for a venture capital firm and are tasked with determining if an invention should be considered for financial feasibility studies. The invention consists of a tube into which compressed air is admitted. The tube separates the compressed air at an intermediate temperature into two air flows, one hot and one cold. A schematic of the invention is shown below in fig. 1. The compressed air admitted into the device is divided such that 60% of it exits...
Thermodynamics one pls clear hand writing thanks (i) Define pure substance and comprehensively describe the phase...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
Parallel system and determine the 0.05 m/s flow distribution for a 4 parallel pipe system when Qi...
example provided
parallel system and determine the 0.05 m/s flow distribution for a 4 parallel pipe system when Qin D, mm 50 75 100 125 L, m 50 100 150 200 Element 0.02 0.03 0.02 0.03 2.5 Assuming that 0 is known, the unknowns in the above equations are Q1, 02, and are solved simultaneously in the manner shown in the following example. and ΔΗ H,-H, EXAMPLE 10.4 Find the flow distribution and change in hydraulic grade line for the...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in advance!! Neatly sketch the...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water. A steady flow of saturated liquid water enters at 1 at a pressure of P, = 200 kPa and passes through a valve which reduces the pressure to P, = 100 kPa. The resulting mixture enters a separation tank, from which saturated vapour at 4 flows out to a compressor which compresses it to Ps = 300 kPa, while saturated liquid at 3 is...
Urgent
An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure below shows a proposed system for utilizing the combustion products and its steady state conditions. Heat transfer from the outer surface of the steam generator (heat exchanger) and turbine can be ignored, as can the changes in kinetic and potential energies of the streams. There is no pressure drop through the heat exchanger. The combustion product can be modeled as air as an ideal...
please help thermodynamics
a) Explain the methods that can be adopted to increase the thermal efficiency of a vapor power cycle. You may use a T-s diagram to explain your reasons. b) A steam regenerative cycle, shown below, is delivering 100 MW of power. Steam from the boller is supplied to the turbine at 8 MPa. 400°C. After expanding isentropically in the 1st stage turbine to a pressure of 1 MPa, steam is taken to the reheater where Its temperature...
please show all work with full steps.
thanks
1/4 Thermo I-Take-Home Final Summer 2019 Thermodynamics I: Final, Summer 2019 (7/30, Tuesday) (Total 200 points) Name: Consider a modern extra-supercritical pressure steam power plant that operates on a reheat-regenerative Rankine cycle with one open feedwater heater, one closed feedwater heater, and one reheater, as shown below. Steam enters the high-pressure turbine at 32 MPa and 700 °C and is condensed in the condenser at a pressure of 10 kPa. Steam exits...
Consider a modern extra-supercritical pressure steam power plant that operates Rankine cycle with one open feedwater heater, one closed feedwater heater, and one reheater, as shown below. Steam enters the high-pressure turbine at 32 MPa and 700 °C and is condensed in the condenser at a pressure of 10 kPa. Steam exits the high-pressure turbine at 4 MPa and is routed into a reheater (inside the boiler) to be reheated to 640 °C. Steam at P-8 MPa is extracted from...
You are working for a venture capital firm and are tasked with determining if an invention should be considered for financial feasibility studies. The invention consists of a tube into which compressed air is admitted. The tube separates the compressed air at an intermediate temperature into two air flows, one hot and one cold. A schematic of the invention is shown below in fig. 1. The compressed air admitted into the device is divided such that 60% of it exits...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
example provided
parallel system and determine the 0.05 m/s flow distribution for a 4 parallel pipe system when Qin D, mm 50 75 100 125 L, m 50 100 150 200 Element 0.02 0.03 0.02 0.03 2.5 Assuming that 0 is known, the unknowns in the above equations are Q1, 02, and are solved simultaneously in the manner shown in the following example. and ΔΗ H,-H, EXAMPLE 10.4 Find the flow distribution and change in hydraulic grade line for the...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
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