MARC details
| 000 -LEADER |
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| fixed length control field |
02936nam a2200253 a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
vtls000058149 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
KUKTEM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251114204506.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
120105t2011 my a f m 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0004776(Local) |
| 039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE] |
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| Level of rules in bibliographic description |
201905151130 |
| Level of effort used to assign nonsubject heading access points |
smfh |
| -- |
201201051751 |
| -- |
ida |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| 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) |
TP492.8 .N67 2011 rs Bc. |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Norshahida Rahman |
| 245 10 - TITLE STATEMENT |
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| Title |
Feasibility study of LNG pre-cooling system using carbon dioxide as a refrigerant / |
| Statement of responsibility, etc. |
Norshahida Rahman |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Kuantan, Pahang : |
| Name of publisher, distributor, etc. |
UMP, |
| Date of publication, distribution, etc. |
2011 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
xiv, 39 p. : |
| Other physical details |
ill. ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Project paper (Bachelor of Chemical Engineering (Gas Technology)) -- Universiti Malaysia Pahang - 2011 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Bibliography : p. 36-38 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Refrigeration is a process of removing heat from a colder medium. By using the latent heat properties of refrigerant, the heat will be rejecting to a warmer medium. The basic of requirements for the refrigeration are the compressor, chiller, expansion valve and also condenser. In the LNG industry, refrigeration plays a major part. The aims of this research are to compare the difference of refrigerants used in pre-cooling system. The refrigerants that used in this research are propane and carbon dioxide. Another part that must be focused on this research is the refrigerants’ parameters which are most important consideration for approving that the carbon dioxide can be replacing the propane as a refrigerant that can be used soon in pre-cooling loop system. A simple model of propane refrigeration loop is used to create a steady state simulation using Aspen HYSYS 7.0 process simulator. By having a valid data from the propane loop, a simulation can be continued by replacing composition from propane to carbon dioxide. The same model constructed in the loop, but the other conditions must be changed to make it suitable and converged with the new refrigerant. The composition of refrigerant in the loop is still same 1, showing the purification of the component. The result shows the coefficient of performance (COP) for propane is 1.73 and carbon dioxide is 4.78. For the value of compressor duty using carbon dioxide is lower than the original loop, which the value is 96.7808 kW and propane duty is at 162.938 kW. Lastly, in terms of the costing of compressor using carbon dioxide is only at $ 54320 / yr which lower compared to compressor cost for propane is $ 91280 / yr. At this stage, we can conclude that the low duty, make the cost is low and this project will be more save. So, from this research, it can be conclude that it is successful because the main objective for replacing carbon dioxide as refrigerant has been achieved where the COP of carbon dioxide is higher than COP of propane. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Refrigerants |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Carbon dioxide |