FREE Trial

Consider the heat pump described in Example 9.14. The heat pump now operates between 0.60 MPa and 1.4 MPa. Plot

Question:

Consider the heat pump described in Example 9.14. The heat pump now operates between 0.60 MPa and 1.4 MPa. Plot the vapor-compression cycle in T–s coordinates (use NIST) and determine the cycle coefficient of performance and the mass flow rate of the R-22.image

Transcribed Image Text:

Example 9.14 Heat Pump As shown in the diagram below, a heat pump is used to heat a swimming pool by extracting energy from the ambient air at 295.3 K (72 F) and transferring it to the water in the pool at 283.1K (50F). The heat pump operates with R-22 between 0.653 MPa absolute (~80 psig) and 1.342 MPa (~180 psig) and delivers 24.62 kW (84,000 Btu/hr) to the water. The R-22 vapor is superheated to 291.44 K (65F) before it enters the compressor, and the R-22 liquid is subcooled to 299.78 (80F) at the condenser outlet. The scroll compressor has an isentropic efficiency of 65%. Assuming no losses other than those associated with the compressor, plot the vapor-compression cycle in T-s coordinates and determine the cycle coefficient of performance and the mass flow rate of the refrigerant. (Credit: Mario Tama / Staff / Getty Images News.)

This problem has been solved!


Do you need an answer to a question different from the above? Ask your question!

Step by Step Answer:

Answer rating: 33% (3 reviews)

or 1kW of electrical power input will yield 1kW of h…View the full answer


answer-question
Answered By
tutor-profile-image
Asim farooq
I have done MS finance and expertise in the field of Accounting, finance, cost accounting, security analysis and portfolio management and management, MS office is at my fingertips, I want my client to take advantage of my practical knowledge. I have been mentoring my client on a freelancer website from last two years, Currently I am working in Telecom company as a financial analyst and before that working as an accountant with Pepsi for one year. I also join a nonprofit organization as a finance assistant to my job duties are making payment to client after tax calculation, I have started my professional career from teaching I was teaching to a master's level student for two years in the evening. My Expert Service Financial accounting, Financial management, Cost accounting, Human resource management, Business communication and report writing. Financial accounting : • Journal entries • Financial statements including balance sheet, Profit & Loss account, Cash flow statement • Adjustment entries • Ratio analysis • Accounting concepts • Single entry accounting • Double entry accounting • Bills of exchange • Bank reconciliation statements Cost accounting : • Budgeting • Job order costing • Process costing • Cost of goods sold Financial management : • Capital budgeting • Net Present Value (NPV) • Internal Rate of Return (IRR) • Payback period • Discounted cash flows • Financial analysis • Capital assets pricing model • Simple interest, Compound interest & annuities
4.40+ 65+ Reviews 86+ Question Solved
Related Book For  answer-question
Thermodynamics Concepts And Applications

Thermodynamics Concepts And Applications

ISBN: 9781107179714

2nd Edition

Authors: Stephen R. Turns, Laura L. Pauley

See More Books
Question Details
Chapter # 9
Section: Problem
Problem: 121
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Question Posted: May 13, 2023 04:51:40
See More Questions

Students also viewed these Engineering questions

Q:
Determine the heat pump coefficient of performance for an ideal vapor compression refrigeration cycle operating between 0.653 and 1.342 MPa. The working fluid is R-22. Compare your result with that...
A:
Click to View...
Q:
Consider a two-stage cascade refrigeration system operating between the pressure limits of 2 MPa and 0.05 MPa. Each stage operates on an ideal vapor-compression refrigeration cycle with R-134a as the...
A:
State 1 given p 1 x 1 State 2 given p 2 s 2 s 1 State......
Q:
Consider a heat pump that operates on the ideal vapor compression refrigeration cycle with R-134a as the working fluid between the pressure limits of 0.32 and 1.2 MPa. The coefficient of performance...
A:
e 5 9 Solved by EES Software Solutions can be verified by co......
Q:
The crate has a mass of 80 kg and is being towed by a chain which is always directed at 20 degrees from the horizontal. If the magnitude of P is increased until the crate begins to slide, determine...
A:
Click to View...
Q:
U-Haul acquired new trucks for $1.4 million. Their estimated useful life is 4 years, and estimated residual value is $200,000. Prepare a depreciation schedule similar to Exhibit, comparing...
A:
Depreciation is the same each year 25 of 1 400 000 200 000 Straight line rate is 100 4 25 The DDB ra......
Q:
The bookkeeper for Lance Briggs Equipment Repair made a number of errors in journalizing and posting, as described below.1. A credit posting of $525 to Accounts Receivable was omitted.2. A debit...
A:
Error a In Balance b Dif......
Q:
Sandra W. Fox lent $1 million to Dream Trust on September 22, 2008, pursuant to a note that matured in less than ninety days. Although Fox lent the money to Dream Trust, the proceeds were ultimately...
A:
Question Did Dream Trust Sell a Security Answer Dream Trust s loan to SDS 2008 structured as a loan......
Q:
The metal ion indicator xylenol orange (Table 11-3) is yellow at pH 6 ( max = 439 nm). The spectral changes that occur as VO 2+ is added to the indicator at pH 6 are shown here. The mole ratio VO 2+...
A:
As VO 2 is added traces 1 9 the peak at 439 decreases......
Q:
Consider reading the case Prez Vega v. Superior Court, 93 DPR 749 (1966). Indicate the following: a. What was the controversy in the case? b. What did the Court decide about the function of...
A:
In general terms a The Controversy in the Case The controversy in Prez Vega v Superior Court 9......
Q:
Consider a vapor-compression-cycle heat pump that uses R-134a as the working fluid. The flow rate of the R-134a is 0.08 kg/s. The temperatures and pressures at various points in the cycle are as...
A:
Click to View...
Q:
Air enters the compressor of a 100-hp Brayton cycle at 530 R and 14.7 psia. The air is heated at 80 psia to 2200 R. The compressor and turbine efficiencies are each 0.90. After leaving the turbine,...
A:
Given data Power output P 100 hp Inlet conditions to compressor T1 530 R P1 14 7 psia Outlet pressur......
Q:
If Korea imposes an import quota on U.S. oranges, losers include Korean _______ of oranges and U.S. ______ of oranges. A. Consumers; consumers B. Consumers; producers C. Producers; consumers D....
A:
B The price of oranges rises in Korea......
Q:
Apply bubble sort to the following list to sort it in ascending order. Record your answer for the first two passes. 29 73 43 97 52 Original Pass 1 80 How many comparisons and exchanges are done in...
A:
1 ans selection sort 80 29 29 passes pass1 pass2 80 29 29......
Q:
4. Draw a histogram for the data. Does the distribution appear to be bell-shaped? 5. What percent of the distribution lies within one standard deviation of the mean?Within two standard deviations of...
A:
Click to View...
Q:
Advertising costs can be BIG costs. An accrual basis company decided to spend BIG time in 2020 and hoped that the costs of the ad program would yield benefits for many, many years! New customers =...
A:
In accounting the treatment of advertising costs depends on whether the costs meet certain criteria for capitalization or should be expensed immediate......
Q:
Design a class named Movie which stores the name of a movie (ex. Groundhog Day) and its genre (ex. Comedy). Include the following methods: default constructor setting movie name and genre to empty...
A:
Let s start by creating the Movie class with the required methods public class Movie private String name private String genre Default constructor public Movie this name this genre Parameterized constr......
Q:
Write class declaration for a class named Pizza that has the data members price, a double, and size, a Circle object. It also has member functions: setPrice () which sets the data member price,...
A:
Here s the class declaration for the Pizza class as described include include Define a Circle class to represent the size of the pizza class Circle pr......
Q:
A contract calls for annual payments of $1,200. Find the present value of the contract, assuming that (1) The number of payments is 7 and the current interest rate is 6 percent: (2) The number of...
A:
Payments Rate Factor from Table 2 Present Va......
Q:
Why is homeostasis defined as the "relative constancy of the internal environments? Does negative feedback or positive feedback tend to promote homeostasis?
A:
Homeostasis is defined as relative constancy of internal environment because this mechanism adjusts......
JavaScript For Dummies 2nd Edition - ISBN: 0764502239 - Free Book