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Describe a Carnot engine cycle in terms of the entropy function and show that the thermal...
A friend passionate about cars mentions that Toyota has developed an engine with a thermal efficiency...
A friend passionate about cars mentions that Toyota has developed an engine with a thermal efficiency of 40% which is an extraordinary accomplishment! 1) Supposing this engine is ideal and based on the Carnot cycle, and also assuming that the cold reservoir temperature is 300 K, what is the hot reservoir temperature to meet the stated efficiency? You mention your result to this friend who points out correctly that the temperature of the hot reservoir would essentially be the temperature...
A Carnot engine operates with air, using the cycle shown. Determine the thermal efficiency (in percentage...
A Carnot engine operates with air, using the cycle shown. Determine the thermal efficiency (in percentage units) and the work output (in kJ/kg). 2 T 500 K 80 kPaO 4 10 m3/kg O 1-10% and 128kJ/kg 2.40% and 128kJ/kg 3.40% and 28kJ/kg @ 4.50% and 1028kJ/kg
A certain heat engine operating on a Carnot cycle absorbs 370 J of heat per cycle...
A certain heat engine operating on a Carnot cycle absorbs 370 J of heat per cycle at its hot reservoir at 145 degree C and has a thermal efficiency of 24.0% By how much does the engine change the entropy of the world each cycle? Express your answer to two significant figures and include the appropriate units. What mass of water could this engine pump per cycle from a well 25.0 m deep? Express your answer to two significant figures...
1.1 As the result of one complete cycle of a Carnot engine, will the entropy in...
1.1 As the result of one complete cycle of a Carnot engine, will
the entropy in the working fluid increase, decrease, stay the same,
or change indeterminably based on the provided information?
A. Increase B. Decrease C. Stay the same D. Indeterminable
1.2 As the result of one complete cycle of a Carnot engine, will
the entropy in the universe increase, decrease, stay the same, or
change indeterminably based on the provided information?
A. Increase B. Decrease C. Stay the...
3. An ideal Carnot engine has an input of 150 J of heat per cycle at...
3. An ideal Carnot engine has an input of 150 J of heat per cycle at its high-temperature reservoir, which is maintained at 135 °C. The engine has a thermal efficiency of 22.0%. a. How much work does this engine do per cycle? b. How much heat does this engine output to its low-temperature reservoir per cycle? c. What is the temperature of the low-temperature reservoir? d. How many cycles would this engine have to go through to lift a...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in a P-V diagram, label the components, and then detail the processes that occur (I short phrase each is all that is necessary). Draw a diagram of the Carnot cycle in a H-S diagram, and label it to match (a) Note: His enthalpy and S is entropy. Water is brought to 0 °C in the refrigerator with the heat being discharged into a reservoir at...
7. Consider a Carnot-cycle heat engine with water as the working fluid. The heat transfer to...
7. Consider a Carnot-cycle heat engine with water as the working fluid. The heat transfer to the water occurs at 150°C, during which process the water changes from saturated liquid to saturated vapor. The heat is rejected from the water at 25°C. (a) Show the Carnot-cycle on a T-s diagram (b) Find the properties (P, T, v, h, s) water at each state. Here v is the specific volume. (c) Determine the cycle thermal efficiency, net heat added and work...
step by step explanation please 04. (a) A heat engine, as shown in in Figure Q4,...
step by step explanation please
04. (a) A heat engine, as shown in in Figure Q4, is operating on a Carnot cycle and has a thermal efficiency of 65%. The waste heat from this engine is rejected to a nearby lake with a temperature of 10°C at a rate of 900 kJ/min High Temperature Reservoir Q, Carnot Heat Engine a =9(0 kJ/min Low Temperature Reservoir T 10°C Figure Q4. Carnot heat engine in kW (i) Determine the net power output...
T9D.3 In this problem, you will calculate the efficiency of a Carnot engine without referring to...
T9D.3 In this problem, you will calculate the efficiency of a Carnot engine without referring to entropy (a) Consider the isothermal expansion in step 1 of the Car- not cycle. Because the temperature of the gas remains constant, work energy that flows out of the gas as it expands must be balanced by the heat energy flowing into the gas. Use this and equation T7.10 for the work done in an isothermal expansion to show that (T9.16) (b) In a...
8: Answer to the following: a. Describe essential characteristics of the reversed Carnot refrigerator. b. Write...
8: Answer to the following: a. Describe essential characteristics of the reversed Carnot refrigerator. b. Write down the formulas for the thermal efficiency of reversible heat engine and for the coefficient of performance (COP) of irreversible heat pump explicitly. Discuss the reason why the flow work of a heat pump must be minimized. d. Discuss which process is the best for a heat pump among the isentropic, polytropic, and isothermal processes in terms of the P-v property diagram.
A Carnot engine operates with air, using the cycle shown. Determine the thermal efficiency (in percentage units) and the work output (in kJ/kg). 2 T 500 K 80 kPaO 4 10 m3/kg O 1-10% and 128kJ/kg 2.40% and 128kJ/kg 3.40% and 28kJ/kg @ 4.50% and 1028kJ/kg
A certain heat engine operating on a Carnot cycle absorbs 370 J of heat per cycle at its hot reservoir at 145 degree C and has a thermal efficiency of 24.0% By how much does the engine change the entropy of the world each cycle? Express your answer to two significant figures and include the appropriate units. What mass of water could this engine pump per cycle from a well 25.0 m deep? Express your answer to two significant figures...
1.1 As the result of one complete cycle of a Carnot engine, will
the entropy in the working fluid increase, decrease, stay the same,
or change indeterminably based on the provided information?
A. Increase B. Decrease C. Stay the same D. Indeterminable
1.2 As the result of one complete cycle of a Carnot engine, will
the entropy in the universe increase, decrease, stay the same, or
change indeterminably based on the provided information?
A. Increase B. Decrease C. Stay the...
3. An ideal Carnot engine has an input of 150 J of heat per cycle at its high-temperature reservoir, which is maintained at 135 °C. The engine has a thermal efficiency of 22.0%. a. How much work does this engine do per cycle? b. How much heat does this engine output to its low-temperature reservoir per cycle? c. What is the temperature of the low-temperature reservoir? d. How many cycles would this engine have to go through to lift a...
A refrigerator is constructed with a Carnot engine. Draw a diagram of the Carnot cycle in a P-V diagram, label the components, and then detail the processes that occur (I short phrase each is all that is necessary). Draw a diagram of the Carnot cycle in a H-S diagram, and label it to match (a) Note: His enthalpy and S is entropy. Water is brought to 0 °C in the refrigerator with the heat being discharged into a reservoir at...
7. Consider a Carnot-cycle heat engine with water as the working fluid. The heat transfer to the water occurs at 150°C, during which process the water changes from saturated liquid to saturated vapor. The heat is rejected from the water at 25°C. (a) Show the Carnot-cycle on a T-s diagram (b) Find the properties (P, T, v, h, s) water at each state. Here v is the specific volume. (c) Determine the cycle thermal efficiency, net heat added and work...
step by step explanation please
04. (a) A heat engine, as shown in in Figure Q4, is operating on a Carnot cycle and has a thermal efficiency of 65%. The waste heat from this engine is rejected to a nearby lake with a temperature of 10°C at a rate of 900 kJ/min High Temperature Reservoir Q, Carnot Heat Engine a =9(0 kJ/min Low Temperature Reservoir T 10°C Figure Q4. Carnot heat engine in kW (i) Determine the net power output...
T9D.3 In this problem, you will calculate the efficiency of a Carnot engine without referring to entropy (a) Consider the isothermal expansion in step 1 of the Car- not cycle. Because the temperature of the gas remains constant, work energy that flows out of the gas as it expands must be balanced by the heat energy flowing into the gas. Use this and equation T7.10 for the work done in an isothermal expansion to show that (T9.16) (b) In a...
8: Answer to the following: a. Describe essential characteristics of the reversed Carnot refrigerator. b. Write down the formulas for the thermal efficiency of reversible heat engine and for the coefficient of performance (COP) of irreversible heat pump explicitly. Discuss the reason why the flow work of a heat pump must be minimized. d. Discuss which process is the best for a heat pump among the isentropic, polytropic, and isothermal processes in terms of the P-v property diagram.
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