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Which of the following statements is not correct?
In a transient flow process
- a)the rates of inflow and outflow of mass are different.
- b)the state of matter inside the control volume varies with time.
- c)there can be work and heat interactions across the control volume.
- d)there is no accumulation of energy inside the control volume.
Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements is not correct?In a transient flow p...
Assumption: Change in internal energy of the billet during time
dt = Net heat flow from the billet to the bath or air during time dt
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Which of the following statements is not correct?In a transient flow p...
Transient Flow Process: Explanation
A transient flow process refers to a situation in which the flow conditions within a control volume change with time. This is in contrast to a steady flow process, in which the flow conditions remain constant. In a transient flow process, the rates of inflow and outflow of mass are different, the state of matter inside the control volume varies with time, and there can be work and heat interactions across the control volume.
Explanation of Incorrect Statement
The incorrect statement is option 'D', which states that there is no accumulation of energy inside the control volume. This statement is not correct because in a transient flow process, energy can indeed accumulate within the control volume. The energy accumulation can occur due to various factors such as heat transfer, work done on or by the fluid, or changes in the internal energy of the fluid.
Energy Accumulation in Transient Flow Process
During a transient flow process, energy can be transferred into or out of the control volume through heat and work interactions. For example, if heat is added to the fluid within the control volume, it will result in an increase in the internal energy of the fluid, leading to energy accumulation. Similarly, if work is done on the fluid, it will result in an increase in the energy content within the control volume.
Importance of Energy Accumulation
The accumulation of energy within the control volume is an essential aspect of transient flow processes. It helps in understanding the energy balance within the system and analyzing the overall behavior of the flow. By considering energy accumulation, engineers can determine the rate at which energy is being added to or removed from the system, which can have significant implications for the design and operation of various engineering systems.
Conclusion
In summary, the statement that there is no accumulation of energy inside the control volume in a transient flow process is not correct. Energy accumulation can occur due to heat transfer, work interactions, or changes in the internal energy of the fluid. Understanding and accounting for energy accumulation is crucial for analyzing and designing systems involving transient flow processes.
A transient flow process refers to a situation in which the flow conditions within a control volume change with time. This is in contrast to a steady flow process, in which the flow conditions remain constant. In a transient flow process, the rates of inflow and outflow of mass are different, the state of matter inside the control volume varies with time, and there can be work and heat interactions across the control volume.
Explanation of Incorrect Statement
The incorrect statement is option 'D', which states that there is no accumulation of energy inside the control volume. This statement is not correct because in a transient flow process, energy can indeed accumulate within the control volume. The energy accumulation can occur due to various factors such as heat transfer, work done on or by the fluid, or changes in the internal energy of the fluid.
Energy Accumulation in Transient Flow Process
During a transient flow process, energy can be transferred into or out of the control volume through heat and work interactions. For example, if heat is added to the fluid within the control volume, it will result in an increase in the internal energy of the fluid, leading to energy accumulation. Similarly, if work is done on the fluid, it will result in an increase in the energy content within the control volume.
Importance of Energy Accumulation
The accumulation of energy within the control volume is an essential aspect of transient flow processes. It helps in understanding the energy balance within the system and analyzing the overall behavior of the flow. By considering energy accumulation, engineers can determine the rate at which energy is being added to or removed from the system, which can have significant implications for the design and operation of various engineering systems.
Conclusion
In summary, the statement that there is no accumulation of energy inside the control volume in a transient flow process is not correct. Energy accumulation can occur due to heat transfer, work interactions, or changes in the internal energy of the fluid. Understanding and accounting for energy accumulation is crucial for analyzing and designing systems involving transient flow processes.
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Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer?.
Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is not correct?In a transient flow processa)the rates of inflow and outflow of mass are different.b)the state of matter inside the control volume varies with time.c)there can be work and heat interactions across the control volume.d)there is no accumulation of energy inside the control volume.Correct answer is option 'D'. Can you explain this answer?.
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