MARC details
| 000 -LEADER |
|---|
| fixed length control field |
04313ntm a2200373 i 4500 |
| 001 - CONTROL NUMBER |
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| control field |
vtls000103165 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
KUKTEM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251117113358.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
180326t20182018my da f am 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
|---|
| International Standard Book Number |
THE0005277(Local) |
| 039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE] |
|---|
| Level of rules in bibliographic description |
201905141732 |
| Level of effort used to assign nonsubject heading access points |
hanafiah |
| Level of effort used to assign subject headings |
201903211648 |
| Level of effort used to assign classification |
saini |
| -- |
201803261227 |
| -- |
saini |
| 040 ## - CATALOGING SOURCE |
|---|
| 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) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FKM .T45 2018 r Thesis |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Thiwaan Rao Narasimma Naidu, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Flow and heat transfer characteristics of supercritical carbon dioxide in mini-channels / |
| Statement of responsibility, etc. |
Thiwaan Rao A/L Narasimma Naidu |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Place of production, publication, distribution, manufacture |
Kuantan, Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMP, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2018 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Date of production, publication, distribution, manufacture, or copyright notice |
© 2018 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
xvii, 117 pages : |
| Other physical details |
illustrations (some color), charts ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 336 ## - CONTENT TYPE |
|---|
| Content type term |
text |
| Source |
rdacontent |
| 336 ## - CONTENT TYPE |
|---|
| Content type term |
text |
| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
|---|
| Media type term |
unmediated |
| Source |
rdamedia |
| 337 ## - MEDIA TYPE |
|---|
| Media type term |
computer |
| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
|---|
| Carrier type term |
volume |
| Source |
rdacarrier |
| 338 ## - CARRIER TYPE |
|---|
| Carrier type term |
computer disc |
| Source |
rdacarrier |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
|---|
| File type |
text file |
| Encoding format |
PDF |
| Source |
rda |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Faculty of Mechanical Engineering |
| 502 ## - DISSERTATION NOTE |
|---|
| Dissertation note |
Thesis (Master of Science in Mechanical Engineering) -- Universiti Malaysia Pahang – 2017 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
Supercritical carbon dioxide (scCO2) is being used in many engineering applications because at supercritical stage, it has unique thermal properties with enhanced heat transfer and flow characteristics. Carbon dioxide (CO2) at supercritical phase is being used recently in Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC&R) industries due to its special thermal properties of supercritical CO2. However, the effects of some process and geometrical parameters on the thermal hydraulic performance of scCO2 are not fully examined. Thus, the aim of this study is to develop single phase flow and heat transfer model and to investigate the effect of some process parameters (inlet pressure, inlet temperature, and inlet flow rate) and geometrical parameters (Tube inner diameter and tube shape) on the performance of scCO2 cooling process. For the numerical investigation, two cases were considered: straight and helical tubes at various tube diameters. The model was developed based on the assumption that the scCO2 flow is incompressible, turbulent and non-isothermal. The developed numerical model was validated using experimental data from open literature for the straight tube and by conducting experiments for the helical tube case. Both the simulation and experiment were performed at various input parameter range: pressure (7.0 MPa – 10 MPa), temperature (35 ºC – 80 ºC), flow rate (10 L/min – 35 L/min) and tube diameter (2.8 mm – 4.5 mm). The model validation results indicated that the average percentage error between the simulation and experimental results were less than 10%. This indicates that the developed model can be used to predict the performance of scCO2 cooling process. Both the experimental and simulation results indicated that the heat transfer coefficient reaches peak value near the pseudo-critical point. Heat transfer coefficient decreased as inlet pressure increased beyond critical point but increased with increasing flow rate. Meanwhile, highest pressure drop value was recorded near the critical point. On the other hand, the smaller the inner tube diameter the higher the heat transfer coefficient will be. The pressure drop in a system decreased when the system inlet pressure is increased but increased with increasing flow rate. Besides, the sensitivity analysis results of Nusselt number and pressure drop indicate that the best input parameters in scCO2 cooling. Inlet pressure with value near critical point, smaller tube ID and higher flow rate could achieve both enhanced heat transfer and low pressure drop at the same time. However, increasing inlet temperature could deteriorate heat transfer rate even though lower pressure drop was attained. These parameter combinations could help reducing the pumping power associated with pressure drop. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
|---|
| Corporate name or jurisdiction name as entry element |
Faculty of Mechanical Engineering |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Disertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Theses |