PROBLEMS (1) An ammonia vapor refrigeration cycle operates at an evaporator temperature of-16°C and a condensing temperature of 32°C. Determine the coefficient of performance (a) for an ideal saturation cycle, (b) for wet compression with saturated vapor leaving the compressor, and (c) if the vapor at suction to the compressor is superheated 6 degrees. Ans. (a) 4.50, (b) 4.70, (e) 4.28 (2) A standard vapor compression system produces 20 tons of refrigeration using R-12 as a refrigerant while operating between a condenser temperature of 41.6 C and an evaporator temperature of -25°C. Determine (a) the refrigerating effect in kJ/kg, (b) the circulating rate in kg/s, (c) the power supplied, (d) the COP, (e) the heat rejected in kW, and (f) the volume flow rate in L/s. Ans. (a) 100.26 kJ/kg, (b) 0.7022 kg/s, (c) 25.69 kW, (d) 2.74, (e) 96.09 kW, (f) 92.18 L/s

PROBLEMS (1) An ammonia vapor refrigeration cycle operates at an evaporator temperature of-16°C and a condensing temperature of 32°C. Determine the coefficient of performance (a) for an ideal saturation cycle, (b) for wet compression with saturated vapor leaving the compressor, and (c) if the vapor at suction to the compressor is superheated 6 degrees. Ans. (a) 4.50, (b) 4.70, (e) 4.28 (2) A standard vapor compression system produces 20 tons of refrigeration using R-12 as a refrigerant while operating between a condenser temperature of 41.6 C and an evaporator temperature of -25°C. Determine (a) the refrigerating effect in kJ/kg, (b) the circulating rate in kg/s, (c) the power supplied, (d) the COP, (e) the heat rejected in kW, and (f) the volume flow rate in L/s. Ans. (a) 100.26 kJ/kg, (b) 0.7022 kg/s, (c) 25.69 kW, (d) 2.74, (e) 96.09 kW, (f) 92.18 L/s

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: In the drawing operation, technological property weldability is an important parameter. Select one:…

A: Drawing: It is a process in which uses tensile forces is used to stretch metal.

Q: mounting chart: Select one: a. describes the dimensions and finish of each component. b. shows an…

A: we will discuss the function of a mounting chart

Q: You do not need to provide Given, Assume, and Problem Type/Features for this question. You just…

A: DefinitionStatic Equilibrium:If a body is at rest and experiences zero force or zero torque, this is…

Q: How did you find out the angle was 90 and how can you find that for other problems?

Q: 8. A note in the comment section of a title block mentions that all faces should have a +.10…

A: Circularity (roundness) tolerance is 2-D in nature.

Q: Pls use any CAD software to draw the sectional view of the solid attached in the image below.

A: FindWe need to draw the sectional view of the given object using CAD software.

Q: Which therbligs correspond to which activities? 1.Lift and move wrench toward screw 2.Reposition…

A: Solution:

Q: 9. The top view shows a bend radius of the thin metal. Would a bend radius of 1/8" meet the…

A: If the bend radius lies with in the given range then it will meet the requirements. 18"=0.125" The…

Q: What is line of impact?

A: The line of impact is the line along which the impact forces act during the collision. Generally, it…

Q: Describe the method of sections?

A: Method of section In this method we deal with the non-concurrent forces. Here, we get three…

Q: Subparts 1, 2, and 3.

Question

Provide clear and complete solution including diagrams

II. Solve Problem No. 1 letter "a" only and Problem No. 2.
Additional Instructions: Define each enthalpy obtained from tables and chart and draw the p-h
diagram labeling the respective evaporating and condensing pressures and
temperatures in each problem.
Simple Vapor Compression Refrigeration System 53
PROBLEMS
(1) An ammonia vapor refrigeration cycle operates at an
evaporator temperature of -16°C and a condensing temperature
of 32°C. Determine the coefficient of performance (a) for an ideal
saturation cycle, (b) for wet compression with saturated vapor
leaving the compressor, and (c) if the vapor at suction to the
compressor is superheated 6 degrees.
Ans. (a) 4.50, (b) 4.70, (c) 4.28
(2) A standard vapor compression system produces 20 tons
of refrigeration using R-12 as a refrigerant while operating
between a condenser temperature of 41.6 C and an evaporator
temperature of -25°C. Determine (a) the refrigerating effect in
kJ/kg, (b) the circulating rate in kg/s, (c) the power supplied,
(d) the COP, (e) the heat rejected in kW, and (f) the volume flow
rate in L/s.
Ans. (a) 100.26 kJ/kg, (b) 0.7022 kg/s, (c) 25.69 kW,
(d) 2.74, (e) 96.09 kW, (f) 92.18 L/s

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step by step

Solved in 6 steps with 6 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

Using autocad draw necessary views. Kindly all the views I'll rate your solution
where did you guys get the area from?
Handwriting not allow please And give me complete answer
Explain revision B?
Hello ! I hope you are well.Why are we taking this specific cross section for the second part of the question ? Is it because it's the one where the nails are ?
3d
identify 3 possible places where title blocks are usually found on architectural drawings, identify at least 4 items that are commonly found in title blocks
Draw a product structure tree for a rolling cart using thelow-level coding scheme.Item ComponentsRolling Cart Top, leg assembly, frameTop Sheet Steel Sheet Steel Leg Assembly Legs legs (4), casters(4) Casters Wheel Wheel, ball bearing, axle, casterframe Ball bearing axle caster frameFrame Bars Bars (4)
It is a good practice to include an isometric view without hidden lines as one of the views in your drawing. True? A. Good practice, same scale as principal views B. Good practice; scales can be modified C. Good practice, bust most use hidden lines D. No, isometric view should not be needed or included ANSI standards dictate the style, dimensions and arrangement of engineering working drawing layouts: A. Yes, they must be followed to ensure…… B. No companies are expected to adhere to the standards but have the latitude to the customize according to individual needs.
Provide a demonstrated drawing of the figure (construct) as well
Diagram: Given the hook-up drawing, list all the equipment, tools and materials that are needed in installation. INST. PIPING 1- *1 INST. PIPING
A NC lathe cuts two passes across a cylindrical workpiece under automatic cycle. The operator loads and unloads the machine. The starting diameter of the work is 3.00 in and its length = 10 in. The work cycle consists of the following steps (with element times given in parentheses where applicable): 1 - Operator loads part into machine, starts cycle (1.00 min); 2 - NC lathe positions tool for first pass (0.10 min); 3 - NC lathe turns first pass (time depends on cutting speed); 4 - NC lathe repositions tool for second pass (0.4 min); 5 - NC lathe turns second pass (time depends on cutting speed); and 6 - Operator unloads part and places in tote pan (1.00 min). In addition, the cutting tool must be periodically changed. This tool change time takes 1.00 min. The feed rate = 0.007 in/rev and the depth of cut for each pass = 0.100 in. The cost of the operator and machine = $39/hr and the tool cost = $2.00/cutting edge. The applicable Taylor tool life equation has parameters: n = 0.26 and…