MARC details
| 000 -LEADER |
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| fixed length control field |
05072ntm a2200373 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251125105422.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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t||||fr|||| 000 0 |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION |
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ta |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
191108b20192019my a|||fr6m|| 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0008411(Local) |
| Qualifying information |
hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| Language of cataloging |
eng |
| Transcribing agency |
UMP |
| Description conventions |
rda |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FKM .K43 2019 r Thesis |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Khamisah Abdul Hamid, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Forced convection heat transfer performance of TiO2-SiO2 nanofluids with wire coil inserts / |
| Statement of responsibility, etc. |
Khamisah Abdul Hamid |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Kuantan, Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMP, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2019 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Date of production, publication, distribution, manufacture, or copyright notice |
© 2019 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xx, 219 pages : |
| Other physical details |
illustrations (some color) ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| Source |
rdacontent |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Media type term |
unmediated |
| Source |
rdamedia |
| 337 ## - MEDIA TYPE |
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| Media type term |
computer |
| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
volume |
| Source |
rdacarrier |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
computer disc |
| Source |
rdacarrier |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
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| File type |
text file |
| Encoding format |
PDF |
| Source |
rda |
| 500 ## - GENERAL NOTE |
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| General note |
Faculty of Mechanical Engineering |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Doctor of Philosophy in Mechanical Engineering) -- University Malaysia Pahang – 2019 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Heat transfer enhancement technique through compound method has been explored in the past few years with the use of nanofluids and inserts. However, studies on hybrid nanofluids with wire coil inserts are limited in the literature. The hybrid nanofluids provide better heat transfer fluids due to its advantages in stability and thermal properties. The wire coil is the best option among the swirl devices which provides maximum heat transfer enhancement and minimum friction penalty to the system. The objective of the present study is to investigate the thermo-physical properties, heat transfer and thermal hydraulic performance of TiO2-SiO2 nanofluids in water/EG mixture with wire coil inserts. Initially, the TiO2-SiO2 nanofluids were prepared at different composition ratios of 20:80, 40:60, 50:50, 60:40 and 80:20 (ratio of TiO2 to SiO2 in volume percent) for a constant 1.0% volume concentration. Later, the hybrid nanofluids were prepared at different volume concentrations from 0.5 to 3.0% for optimum composition ratio. The thermal conductivity and dynamic viscosity of nanofluids were measured using analytical laboratory equipment, whereas the density and specific heat were estimated using existing mixture relation from literature. The forced convection heat transfer investigation was conducted using the modified experimental setup and undertaken for a wide range of Reynolds number from 2,300 to 12,000 and bulk temperature of 30 °C. The experiment was undertaken at constant heat flux boundary conditions for flow in a tube with wire coil inserts at pitch ratio P/D from 0.83 to 4.17. The theoretical model was developed from van Driest eddy diffusivity equation. The evaluation on coefficient K and Prandtl index, ζ is conducted to observe their turbulent characteristics. Among five composition ratios, the ratio of 20:80 (denoted as R=0.2) was observed to be the most effective composition ratio according to the evaluation of thermo-physical properties and heat transfer performance at different composition ratios. The thermal conductivity, dynamic viscosity and heat transfer coefficient for R=0.2 at 3.0% volume concentration were increased up to 22.83%, 68.47% and 50.99%, respectively. For flow in a tube with wire coil inserts, the heat transfer enhancement was recorded up to 254.44% at 2.5% volume concentration and 0.83 pitch ratio. The friction factor insignificantly increased with the increase of volume concentration for flow in a tube without wire coil inserts. However, the friction factor of nanofluids increased from 1.88 to 6.38 times higher than water/EG in a tube for flow in a tube with wire coil inserts. The thermal performance factor (TPF) for flow of nanofluids over wire coil inserts was obtained in the range of 1.3 to 2.06. The heat transfer performance and friction factor of the nanofluids increased when the wire coil pitch ratio decreased from 4.17 to 0.83. The TPF of the TiO2-SiO2 nanofluids at all volume concentrations and different wire coil pitch ratios obtained ratio greater than one. However, the optimum condition for nanofluids with wire coil inserts occurred at 2.5% volume concentration and 1.5 pitch ratio with TPF up to 2.06. The theoretical models were validated with the experimental data and successfully predicted the turbulent characteristics of nanofluids flow with wire coil inserts. The comparison between theoretical estimation and experimental results showed a good agreement hence confirming the validity of the proposed model. Finally, it was recommended to formulate the TiO2-SiO2 nanofluids with composition ratio 20:80 for application in various heat transfer systems and prepare the nanofluids at 2.5% volume concentration with 1.50 wire coil pitch ratio for optimum performance. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Mechanical Engineering |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Disertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Theses |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |