MARC details
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04587ntm a2200325 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 |
20251125110844.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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a||||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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240415s20232023my a|||fr|||| 000 0 may d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0009826 (Local) |
| Qualifying information |
Hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMPSA |
| 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) |
FTKMA .F34 2023 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Nur Faeeza Binti Abdul Halim, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Parameter study on low temperature vacuum drying with induced nucleation boiling for dewatering stingless bees honey / |
| Statement of responsibility, etc. |
Nur Faeeza Binti Abdul Halim |
| 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 |
UMPSA, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2023 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Date of production, publication, distribution, manufacture, or copyright notice |
©2023 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xvi, 106 pages : |
| Other physical details |
illustrations ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD ROM |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
volume |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
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| Source |
rda |
| File type |
text file |
| Encoding format |
PDF |
| 500 ## - GENERAL NOTE |
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| General note |
Faculty of Mechanical and Automotive Engineering Technology |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang – 2023 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
One of the issues faced by stingless bees beekeepers is related to the storing of Stingless Bees Honey (SBH) at room temperature. This is because SBH contains high water content which may cause fermentation. Hence, the dewatering process is necessary to reduce the water content and prevent fermentation. The conventional methods that are used to lower the water content of honey are not efficient and have the potential to degrade the nutritious content of honey. Thus, the Low Temperature Vacuum Drying with Induced Nucleation Boiling (LTVD-NB) method has been developed to solve the problem of honey dewatering efficiency while maintaining honey quality. As LTVD-NB method involve with nucleate boiling, therefore surface roughness (SR) and dewatering temperature could affect the performance of dewatering honey. However, research on the effect of SR and dewatering temperature on nucleate boiling is limited. It is known that SR determines cavity and affects boiling heat transfer process, whereas temperature determines heat flux (q”). It is believed that boiling heat transfer process is directly related to bubble nucleate on heated surface. However, there is a limited amount of research available on the effect of SR and dewatering temperature towards the characteristics of bubble nucleation in honey. Thus, the objective of this study was to investigate the effects of temperature and SR of stainless steel heater pipes on dewatering rate, nucleate boiling heat transfer (NBHT), and bubble nucleate characteristic during dewatering of SBH. 200 g of SBH sample was heated for five minutes at three different temperatures, which were 40, 45, and 50 °C using stainless steel heater pipes with SR of 0.80, 3.39, 8.82, and 11.33 μm at the pressure of 5 kPa. A digital camera was used to capture and record the formation of bubble nucleate on the heater surface during the experiment. The formation of bubble characteristic has been observed and analysed base on the number of bubble nucleated and the bubble departure frequency. Each experimental setting was performed three times. It was found that SR and temperature significantly affected the dewatering rate of SBH. The highest dewatering rate of 0.42 %/min was obtained at the roughest surface of 11.33 μm and highest temperature of 50 °C. It was five times faster compared to dewatering rate at 0.80 μm SR of 40 °C, which was only 0.08 %/min. The highest dewatering rate was obtained at the highest SR due to more nucleation sites, thus increased the number of bubbles depart. By roughening the heater surface, the heat transfer coefficient (HTC) was enhanced as more cavity and nucleation site were present on the surface. The 11.33 μm surface produced 143 % higher HTC than the 0.80 μm. In addition, the highest dewatering rate was obtained at higher temperature as the heat dispersion and transfer were better at higher temperature compared with lower temperature. This is because as temperature increased q”, bubble frequency departure from heater surface and HTC also increased. The maximum HTC obtained was around 10.11 kW/m2K, corresponding to the highest temperature tested at 50 °C. Thus, higher SR and temperature resulted in higher dewatering rate, and this correlated with the increment of nucleation site, bubble frequency depart from heater surface, q”, and HTC. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Mechanical and Automotive Engineering Technology |
| 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 |
Dissertations |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |