Problem 08.034 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C. Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System Determine the exergy destroyed during this process. The exergy destroyed during this process is kJ.

Problem 08.034 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C. Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System Determine the exergy destroyed during this process. The exergy destroyed during this process is kJ.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

Q: QUESTION 1 "A piston-cylinder device contains 7 kg of saturated water vapor at 7 MPa. Now heat is…

Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

A: Given Mass, m = 5 kg Initial temperature, T1 = 427oC Initial pressure,…

Q: A wind tunnel extracts atmospheric air at 20 °C and 101.3 kPa through a large fan located near the…

A: The pressure in the tunnel. Given: The atmospheric pressure is P1=101.3 kPa. The temperature of the…

Q: It is a hot day in Atlanta and you and your friends bought an ice cream maker. The unit consists of…

A: To obtain the solution of the above question, we will apply the 1st law of thermodynamics and is…

Q: 1. An "empty" propane tank is brought to a filling station to be reloaded. The tank is a standard…

A: Given:The total volume of the tank, The temperature of saturated propane vapor in the empty tank is…

Q: a rigid 3ft ^3 vessel contains R-134 a originally at -20 F and 27.7 percent quality. The refrigerant…

A: Given Data Initial temperature is: T1=-20°F Final temperature is : T2=100°F Dryness fraction is :…

Q: Calculate the change in internal energy (in kJ) when a 5 kg Cast Iron pot is heated from 20°C (65°F)…

Q: A McLeod Gage is available which has a volume, VB of 58.9 cm3 To vecoum spece, and a capillary…

Q: the container is found t on. The mass and volum lled as an ideal gas, dete

Q: Two lbs of water vapor in a piston-cylinder assembly expands at a constant pressure of 250 lb/in²…

Q: Air in a cylinder-piston system expands and works on the piston. The temperature of the air…

Q: Consider the following systems. a) What is the heat capacity of a system consisting of a 0.870-kg…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Air is contained in a pistom final state. For each of the process to occur adiabatica process (use…

A: INTRODUCTION: A process in which no heat exchange between system and surrounding, it means no…

Q: Saturated vapour refrigerant 134a enters a compressor at 2 bars and exits at 12bars. The compressor…

A: To calculate the new temperature of the refrigerant after exiting the compressor, we can use the…

Q: An insulated piston-cylinder device contains 3 L of saturated liquid water at a constant pressure of…

Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

### Required Information

**Problem 08.034** - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System

**NOTE:** This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C.

---

### Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System

**Task:**
Determine the exergy destroyed during this process.

**The exergy destroyed during this process is** [______] kJ.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

explained please
Problem 5. A 1000 cubic foot room is initially at standard temperature and pressure. A resistance heater in the room is consuming 1500W of electricity. What is the air temperature of the room after 3 hours? Assume the room acts as an isolated system. Hint: The specific heat of a substance is the amount of heat it takes to warm one unit mass of material by one degree. The specific heat of air (assuming constant volume) can be taken as C₂ = 700J/kg°C. This relates the total heat added to the system to its temperature rise.
A cylinder-piston apparatus contains 29 kg of air at 30°C. Weights on the piston fix the initial pressure at 20 bar. Find the work done if: a. Some of the weights are quickly removed until external pressure is 5 bar. The temperature remains constant. b. Some of the weights are slowly removed until the external pressure reaches 5 bar. The temperature remains constant. c. The expansion from 20 bar to 5 bar is polytropic, with an exponent of 1.4. Note that if the gas is ideal and PV = constant, then the temperature varies as: T₂ Tv 1-n P. n-1
please show solution step by step. Thermodynamics
A container maintains a constant pressure of 40800 Pa while changing to a volume of 791 liters. If 31080 J of work was done by the gas, what was the starting volume? *
c. Before going to school and attend his physics class, an engineering student fills the 60-L steel tank of his brand new car with gasoline at 60°F. The car is left in the sun in the school parking area, and the temperature of the gasoline rises to 110°F. Approximately how much gasoline is lost to overflow caused by thermal expansion. Consider the expansion of the tank.
B- Determine the heat transfer (in kJ) necessary to increase the pressure of 70 percent quality steam from 200 to 800 kPa, maintaining the volume constant at 2 m². C-A cylinder fitted with a frictionless piston contains 2 kg of superheated refrigerant R-
Water is at 0.2 bar and has specific internal energy of 400 kJ/kg Question options: It is liquid It is a mixture It is steam
A piston-cylinder assembly contains water that undergoes a series of processes. Process 1-->2: Constant-volume heating from p1=5bar and T1=160° to P2=10bar Process 2-->3: Constant-pressure cooling to saturated vapor Process 3-->4: Constant-volume cooling to T4=160°C Process 4-->5: Constant-temperature expansion with Q=815.8 kJ 1- Sketch the processes on Pt, Pyv, and Tv, plots as the following Label the axes PRESSURE, TEMPERATURE and SPECIFIC VvOLUME values; use closed dots to show the states, use solid lines to connect the states, add number and arrows to make clear the states numbers and process directions. 2- Could this be considered a thermodynamic cycle? Why or why not?
b) Steam generators are a type of heat exchanges that are used in power plants to generate steam at desired pressure and temperature (Fig. Q1.b). In a steam generator, saturated liquid water at 30°C enters a 60-mm diameter tube at the volume flow rate of 12 L/s. After exchanging heat with hot gas, the water changes to steam and leaves the generator at a pressure of 9 MPa and a temperature of 400°C. During this process, the diameter of the water/steam tube does not change. Steam out Gas out Hot gas in Liquid water in Fig 2. Schematic of the steam generator in Q1.b. (i) Calculate the steam mass flow rate (ii) What is the inlet velocity of the steam? (iii) What is the exit velocity of the steam? (iv) Calculate the rate of heat transfer (in MW) required to change the phase of liquid water to steam.