Practical 1 Assignment- Refrigeration cycles Using Cycle_d hx
Due date: 16th August 2024 at 23:00 hr
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Submitted in partial fulfilment of the requirements for the Bachelor Engineering Technology degree
(Mechanical Engineering)
in the
Department of _______________________________ Engineering
Faculty of Engineering, Built Environment and Information Technology
Central University of Technology, FS
August 2023
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Practical 1 Assignment- Refrigeration cycle
Cover page (2)
Due date: 16th August 2024 (23:00 hr)
Table of content (2)
Indicate content and page numbers
Aim/ Abstract (6): Create an abstract based on the question in your words. (2-4 unique sentences)
Theory (12): Summarise all possible theories and formulas used for this experiment. It may start with a short introduction, followed
by some literature and the formulas and T-s and P-h diagrams. (maximum of 1 page)
Apparatus/description (8): Sketch or provide a relevant flow diagram, pictures with labels. Do not use the same image as your
classmates. (maximum of a page).
Calculations (10)
Show sample calculation for all configurations in the task in the set-up.
Simulations (15)
Provide all input parameters, refrigerant and screenshot or PrintScreen from software used. The table format is acceptable
Result and finding (20)
Provide all the results from the simulation, such as graphs and the T-s and P-h diagrams. Tables and graphs to show the variations considered
should also be presented.
Conclusion (10)
Provide a suitable conclusion from the results, calculations and simulations.
Overall format and style (10)
Ensure that you write the report with a reasonable layout and style.
References (5)
Provide IEEE style references for all parts of the report such a theory, calculations and simulations.
Total
[100]
Task: Use the software provided to design a refrigeration system according to the group provided in the table below.
Student in the same group does not imply submitting the same report. Individual work is required.
Students may assume further parameters not given, such as heat transfer coefficient, compressor efficiencies, intermediate pressures, among
others
Groups
Cooling
capacity
Power input Evaporator
Room
compartment temperature
temperature
kW
in ˚C
in ˚C
Refrigerant
to consider
1
40
10
5
22
2
40
13-18
-5
32
3
4
5
45
45
15
9-17
7-10
5-10
0
3
-2
26
29
33
6
90-120
30-100
5
24
7
Any
Any
Any
Any
R134a vs
R12
R245a vs
R12
R11 vs R21
R14 vs R22
R13 vs
R124
Ammonia
vs R12
Any
Compare the COP cooling for Single-stage and Two-stage compression with intercooling.
Compare the COP cooling for change in refrigerant for the single-stage system.