EBK MACHINE TOOL PRACTICES
11th Edition
ISBN: 9780134985824
Author: CURRAN
Publisher: VST
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Chapter C.9, Problem 21ST
To determine
Histogram of Coded data with blueprint specification 5.00.
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This refrigeration cycle uses R-134a as the working fluid and, for now, assume that it operates on an ideal vapour-compression refrigeration cycle between 0.11 and 1.0 MPa. If the mass flow rate of the refrigerant is 0.075 kg/s, determine
What is the rate of heat removal from the refrigerated space?
What is the power input to the compressor?
What is the rate of heat rejection to the environment?
What is the COP of this ideal process?
Based on this analysis, what is the cost of electricity to operate the cold room for 1 year? Comment on why this differs to the value above
Further data was collected which determined that the working fluid:
enters the compressor at 0.11 MPa and -22°C
leaves the compressor at 1.0 MPa and 60°C
is cooled in the condenser to 0.9 MPa and 20°C
is throttled to 0.12 MPa
Disregarding any heat transfer or pressure losses in the pipes:
What is the rate of heat removal from the refrigerated space?
What is the power input to the compressor?…
1 The refrigeration capacity of the cold room you are considering is 10 kW. It operates for 24 h/d, 360 days of the year. The average temperature outside the cold room is 30°C and the temperature of the air inside the cold room should be 5°C. What is the maximum coefficient of performance for this refrigeration cycle? What is the minimum work required? and If the price of electricity is 0.008 cents per kJ, what is the minimum cost of electricity to run the cold room for 1 year?
Chapter C Solutions
EBK MACHINE TOOL PRACTICES
Ch. C.1 - Prob. 1STCh. C.1 - Prob. 2STCh. C.1 - Prob. 3STCh. C.1 - Prob. 4STCh. C.1 - Prob. 5STCh. C.1 - Prob. 6STCh. C.1 - Prob. 7STCh. C.1 - Prob. 8STCh. C.1 - Prob. 9STCh. C.1 - Prob. 10ST
Ch. C.2 - Prob. 1STCh. C.2 - Prob. 2STCh. C.2 - Prob. 3STCh. C.2 - Prob. 4STCh. C.2 - Prob. 5STCh. C.2 - Prob. 6STCh. C.2 - Prob. 7STCh. C.2 - Prob. 8STCh. C.2 - Prob. 9STCh. C.2 - Can an inch machine tool be converted to work in...Ch. C.3 - Prob. 1.1STCh. C.3 - Prob. 1.2STCh. C.3 - Prob. 1.3STCh. C.4 - Prob. 1.1STCh. C.4 - Prob. 1.2STCh. C.4 - Prob. 1.3STCh. C.5 - Prob. 1STCh. C.5 - Prob. 2STCh. C.5 - Prob. 3STCh. C.5 - Prob. 4STCh. C.5 - Prob. 5STCh. C.5 - Prob. 6STCh. C.5 - Prob. 7STCh. C.5 - Prob. 8STCh. C.5 - Prob. 9STCh. C.5 - Prob. 10STCh. C.5 - Prob. 11STCh. C.5 - Prob. 1.1STCh. C.5 - Prob. 1.2STCh. C.5 - Prob. 2.1STCh. C.5 - Prob. 3.1STCh. C.5 - Prob. 4.1STCh. C.6 - What is comparison measurement?Ch. C.6 - Define cosine error.Ch. C.6 - Prob. 3STCh. C.6 - Prob. 4STCh. C.6 - Prob. 5STCh. C.6 - Prob. 6STCh. C.6 - Prob. 7STCh. C.6 - Prob. 8STCh. C.7 - What is a wringing interval?Ch. C.7 - Why are wear blocks frequently used in combination...Ch. C.7 - As related to gage block use, what is meant by the...Ch. C.7 - Prob. 4STCh. C.7 - What is a conditioning stone and how is it used?Ch. C.7 - Prob. 6STCh. C.7 - Prob. 7STCh. C.7 - Prob. 8STCh. C.7 - Prob. 9STCh. C.7 - Prob. 10STCh. C.8 - Name two angular measuring instruments with one...Ch. C.8 - What is the discrimination of the universal bevel...Ch. C.8 - Describe the use of the sine bar.Ch. C.8 - Prob. 4STCh. C.8 - Calculate the required sine bar elevation for an...Ch. C.8 - A 10-inch sine bar is elevated 2.750 inch....Ch. C.8 - How do 10-inch and 5-inch sine bars affect the...Ch. C.8 - What gage block stack would establish an angle of...Ch. C.8 - What gage block stack would establish an angle of...Ch. C.8 - A 10-inch bar is elevated 2.5 inch. What angle is...Ch. C.9 - Prob. 1STCh. C.9 - Prob. 2STCh. C.9 - Prob. 3STCh. C.9 - Prob. 4STCh. C.9 - Prob. 5STCh. C.9 - Prob. 6STCh. C.9 - Prob. 7STCh. C.9 - Prob. 8STCh. C.9 - Prob. 9STCh. C.9 - Prob. 10STCh. C.9 - Prob. 11STCh. C.9 - Prob. 12STCh. C.9 - Prob. 13STCh. C.9 - Prob. 14STCh. C.9 - Prob. 15STCh. C.9 - Prob. 16STCh. C.9 - Prob. 17STCh. C.9 - Prob. 18STCh. C.9 - Prob. 19STCh. C.9 - Prob. 20STCh. C.9 - Prob. 21STCh. C.9 - Prob. 22STCh. C.9 - Prob. 23STCh. C.9 - Prob. 24STCh. C.9 - Prob. 25STCh. C.9 - Prob. 26STCh. C.9 - Prob. 27STCh. C.9 - Prob. 28STCh. C.9 - Prob. 29STCh. C.9 - Prob. 30STCh. C.9 - Prob. 31STCh. C.9 - Prob. 32STCh. C.9 - Prob. 33STCh. C.9 - Prob. 34STCh. C.10 - Prob. 1STCh. C.10 - Prob. 2STCh. C.10 - Prob. 3STCh. C.10 - Prob. 4STCh. C.10 - Prob. 5STCh. C.10 - Prob. 6STCh. C.10 - Prob. 7STCh. C.10 - Prob. 8STCh. C.10 - Prob. 9ST
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