An open feedwater heater is a direct-contact heat exchanger used in vapor power plants. Shown in the figure below are o

Q: Second-law efficiency is a measure of the performance of a device relative to its performance under…

A: Yes, second law efficiency gives the efficiency of a system by comparing with the reversible…

Q: Steam enters the first-stage turbine at 40 bar and 500 °C with a mass flow rate of 17.36 k9. Steam…

A:

Q: In a steam power plant, dry saturated steam enters the turbine at a pressure of 40 bar and exits the…

A: Turbine entering pressure = 40 bar = 4 Mpa Turbine exit pressure = 0.1 bar = 10 kpa mass flow rate =…

Q: cycle 1-2-3-4-1 is proposed in which 1-2 is a reversible adiabatic process, 2-3 is a reversible…

A: Yes such a cycle can be realised, because two adiabatic curves can intersect if atleast one of them…

Q: On both P-v and T-s diagrams, the area enclosed by the process curve represents the net work of the…

A: The net work of the reversible process is represented by; Here, the term ∫Pdv represents the area…

Q: A counterflow heat exchanger operates at steady state while being well-insulated from the…

A: *As per our guidelines we are supposed to answer first three sub-parts of the question. Kindly…

Q: Define the exergy destruction, which is the wasted work potential during a process as a result of…

A: Exergy destruction is lost work potential which is also called as lost work.

Q: A reversible power cycle R and an irreversible power cycle I anerate between the same two…

A: Let's consider the reversible engine and irreversible engine; it operates between the same…

Q: Consider 4.8 pounds per minute of water vapor at 100 lb/in2, 500°F, and a velocity of 100 ft/s…

A:

Q: An open feedwater heater is a direct-contact heat exchanger used in vapor power plants. Shown in the…

A: Given data as per question  T1 = 41 °C. point 2 is the dual-phase region with quality x =0.92

Q: Sketch these thermodynamic process on a PV diagram

A: For a Carnot cycle Process A-B is an isothermal expansion  Process B-C is an adiabatic expansion…

Q: An insulated, steady state piping system consists of flowing air that is combined from two pipes…

A:

Q: As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating…

A: Given:Pressure and temperature of R22 at compressor inlet, P1=80 lbf/in2, T1=40oFPressure and…

Q: 5. (Calculation questions, A cycle 1-2-3-4-1 is proposed, in which 1-2 is a reversible adiabatic…

A: Yes this cycle can be realised because, if out of two adiabatic curves atleast one is irreversible…

Q: 2. In an irreversible process, there is a (a) loss of heat (b) gain of heat (c) no loss of work (d)…

A: As per the guidelines of BARTLEBY we are subjected to solve only three sub parts of a question.…

Q: the work output from the turbine

A: Given data;  At steady state,  Steam enters a turbine having mass,m1=500 kg/s  Specific…

Q: In order to analyze an internal combustion engine, consider an ideal gas with constant specific…

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Q: An ideal gas initially at 550 K and 9 bar undergoes a four-step mechanically reversible cycle in a…

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Q: working substance drops from 100 to 20 psia, the velocity increases from 200 to 1200 fps, the…

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Q: A reversible power cycle R and an irreversible power cycle I onerate between the same two…

A: Entropy is the measure of disorderness of any system. If heat flow occurs through any system, then…

Q: A steady-state system for producing power consist of a pump, heat exchanger and a turbine. Water at…

A: To find: The rate of entropy production and thermal efficiency. Given: The pressure at the pump…

Q: 4. In part of a Carnot cycle, water undergoes two internally reversible processes shown in the…

A:

Q: Water vapor flows through a two-stage turbine at steady-state, entering the inlet of the first…

A: Given:-T1=480°CP1=10 MPaP3=0.5 bar=50 kPax3=0.95m1=15.8 kg/sTo find:-Mass flow rate of steam to…

Q: nd the rate of entropy production and determine if the cycle operates irreversibly, reverisbly, or…

A: ηcarnot=1-TLTH         =1-4001200ηcarnot=0.667=66.7%  a). Q˙H=600KW   ,   Q˙C=400KW   W˙NET =200KW…

Q: Consider 4.8 pounds per minute of water vapor at 100 lb/in², 500°F, and a velocity of 100 ft/s…

A: The given information in the problem is represented in the following attached image:

Q: True or false For an internally reversible, steady-state flow process, the heat transfer per unit…

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Q: A steady-state system for producing power consist of a pump, heat exchanger and a turbine. Water at…

A:

Q: True or False An isentropic process is always reversible adiabatic.

A: An isentropic process is always reversible adiabatic since there is no entropy generation in the…

Q: What are the components of an effective payload? O Collaborative robot mass, fuel consumption and…

A: In most simple words, a payload for a robot can be stated as the maximum weight a robot arm can…

Q: Steam enters a turbine with a pressure of 80 bar, a temperature of 480°C, and a velocity of 145 m/s.…

A: Given   Velocity, v1 = 145 m/s                 v2 = 87 m/s Work output, W = 610 kJ/Kg Find   Rate of…

Q: When T > T0, the exergy and heat transfer are in the same direction.

A: In the problem, the direction of heat transfer and exergy is asked. The relationship between the…

Q: A small nuclear reactor is cooled by passing liquid sodium liquid sodium out of the reactor at 2 bar…

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Q: In a thermal power plant, an adiabatic steam turbine operating at steady state with inlet conditions…

A: NOTE: According to Bartleyby's policy, we shall answer only three sub-parts so kindly repost…

Q: A cylinder-piston assembly has an initial volume inside the cylinder of 05 L. Of this volume, 1% of…

A: Introduction: The work done by the close system at constant pressure is due to volume expansion. As…

Q: Saturated water vapor at 300°F enters a compressor operating at steady state with a mass flow rate…

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Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lb;/in? and a temperature of…

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Q: A reversible power cycle whose thermal efficiency is 37% receives 50 kJ by heat transfer from a hot…

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Q: QUESTION 5 The inventor claims that a power cycle operates between hot and cold reservoirs at 1200 K…

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Q: In a cycle what always happens when an ideal process is replaced by a real process The efficiency…

A: All the processes in the nature are real processes though we study them as ideal processes.…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.