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COOLING LOAD CALCULATION AND THERMAL
MODELING FOR VEHICLE BY MATLAB
THESIS
Organized to Meet a Part of the Requirements to Achieve
The Master Degree of Mechanical Engineering
By
OUM SAAD ABDUL- ABUALOYOUN
S951302006
POSTGRADUATE PROGRAM
SEBELAS MARET UNIVERSITY
SURAKARTA
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PRONOUNCEMENT
The person who signs here:
NAME : OUM SAAD ABDUL- ABUALOYOUN
NIM : S951302006
Certifies that the thesis entitled:
COOLING LOAD CALCULATION AND THERMAL MODELING FOR VEHICLE BY MATLAB
Is really his own work. Anything related to others’ work is written in quotation, the source of which is listed on the bibliography. If then, this
pronouncement proves wrong, I am ready to accept any academic punishment.
Including the withdrawal of this thesis and my academic degree.
Surakarta, 26 June 2015
The person who makes this Pronouncement
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ACKNOWLEDGEMENT
Thanks to Allah most gracious most merciful for his blessing and guidance
that the writer could finally finish this thesis as a partial fulfillment of post
graduate program of management for master degree.
This thesis part of the writer’s experience in life and best represents the hard work and never ending study that he has been fighting for all of this time. On
such a happy occasion, the writer wishes to thank the following respected persons:
1. Dr. Budi Santoso as supervisor for his helpful assistance in guiding me finish
my writing.
2. Prof. Dr. Dwi Aries H.,ST.,MT. as co-supervisor who never got bored to assist
me in completing my writing.
3. My whole families who have supported me with their prayers day and night
4. My brother Ahmed A Amar Aboalyon, My fellow students of post graduate
program of management who have encouraged me to be spirited.
5. All lectures at a postgraduate program of Sebelas Maret University Surakarta
Indonesia who have given their latest knowledge and valuable information to
their students and to all office administration who have helped ease my thesis
so that it is right on time and I could graduate earlier.
The writer humbly says that this thesis is far from perfection and needs to be
criticized for further betterment and advancement in the future study. Last but
not least, the writer would like to extend his gratitude to all individuals who
helped me during my school years in Indonesia. Thank you very much.
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OUM SAAD ABDUL- ABUALOYOUN, Student Number S951302006.
COOLING LOAD CALCULATION AND THERMAL MODELING FOR VEHICLE BY MATLAB. Supervisor I: Dr. Budi Santoso. Supervisor II: Prof.
Dr. Dwi Aries H., ST., Thesis: The Graduate Program in Mechanical Engineering, Sebelas Maret University 2015.
ABSTRACT
The Cooling Load Calculation and Thermal Modeling for Vehicle by MATLAB were presented.From the load calculation, cooling capacity could be calculated,and thus ton of refrigeration required was found. The MATLAB/GUI was used for estimating the heating and cooling loads encountered in a vehicle cabin. Models of heat transfer phenomena were used to calculate the different load categories. Load calculation models weredesigned, and the data were collected from various sources for load estimation.Case study of Honda Freed car was introduced under arbitrary driving conditions. Simplified geometry typical material properties of a Honda freed car were considered as input parameters for studies. In the case study of Honda Freed Car, the engine, exhaust, and reflected radiation loads might be neglected from consideration. On the other hand, the direct and diffuse radiation loads were important AC loads that tend to give rise to the cabin temperature.The cabin temperature decreased from a soak temperature of 24°C to the comfort temperature.
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CONTENT
TITLE ... i
APPROVAL PAGE ... ii
SUPERVISOR ENDORSEMENT ... iii
PRONOUNCEMENT ... iv
CHAPTER II LITERATURE REVIEW AND BASIC THEORY ... 4
2.1 LiteratureReview ... 4
2.2 Basic Theory ... 9
2.2.1Metabolic Load ... 10
2.2.2Radiation Load... 11
2.2.3Ambient Load ... 13
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3.4 Modelling platforms ... 25
3.4.1 Algorithm of Metabolic LoadCalculation ... 25
3.4.2 Algorithm of Direct LoadCalculation ... 26
3.4.3 Algorithm of Diffuse LoadCalculation ... 27
3.4.4 Algorithm of Reflected LoadCalculation ... 28
3.4.5 Algorithm of Ambient LoadCalculation ... 29
3.4.6 Algorithm of Exhaust LoadCalculation ... 30
3.4.7 Algorithm of Engine LoadCalculation ... 31
3.4.8 Algorithm of Ventilation LoadCalculation ... 32
3.4.9 Algorithm of AC LoadCalculation ... 33
3.4.10 Algorithm of Cooling LoadCalculation ... 34
CHAPTER IV RESULTS AND DISCUSS ... 35
CHAPTER V CONCLUSION AND SUGGESTION ... 49
5.1Conclusion ... 49
5.2Suggestion ... 49
REFERENCE ... 50
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FIGURE LIST
Figure 2.1 Handa freed dimension ... 8
Figure 2.2 Schematicrepresentation of thermal load in a typical vehicle cabin ... 9
Figure 2.3 Psychometric chart ... 17
Figure 3.1 Example of cabin geometry schematic ... 20
Figure 3.2 Flowchart of research ... 24
Figure 3.10 Algorithm of Ventilation load Calculation ... 32
Figure 3.11 Algorithm of AC load Calculation ... 33
Figure 3.12 Algorithm of Cooling load Calculation ... 34
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TABLE LIST
Table 2.1 Resumes of other Authors ... 6
Table 3.1 Properties of the vehicle cabin body (Farazbaksh, 2013) ... 21
Table 3.2 Classification of metabolic rates by activity (ISO 8996, 1968) . 21 Table 3.3 Values of A, B and C for the calculation of solar irradiance according toThe ASHRA Handbook ... 22
Table 3.4 Average values of operative temperature, mean skin temperatur 23 Table 4.1 Table Direct loads ... 38
Table 4.2 Table Diffuse load ... 39
Table 4.3 Table Ambient load ... 41
Table 4.4 TableVentilation load ... 44
Table 4.5 Table AC load ... 45
