Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics
Thermosyphon is considered a heat transfer device in which its operating principle depends on the evaporation and condensation of a working fluid which use the gravity forces to ensure the fluid circulation. In the present paper, thermosyphon has been constructed to simulating the actual application...
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| Format: | Article |
| Language: | English |
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Tikrit University
2013-07-01
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| Series: | Tikrit Journal of Engineering Sciences |
| Online Access: | https://tj-es.com/ojs/index.php/tjes/article/view/357 |
| _version_ | 1797782465280999424 |
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| author | Raqeeb H. Rejab |
| author_facet | Raqeeb H. Rejab |
| author_sort | Raqeeb H. Rejab |
| collection | DOAJ |
| description | Thermosyphon is considered a heat transfer device in which its operating principle depends on the
evaporation and condensation of a working fluid which use the gravity forces to ensure the fluid
circulation. In the present paper, thermosyphon has been constructed to simulating the actual
applications to study the characteristics of heat transfer and its influence on the variation of cross
section shape. This paper, includes the procedure of a series experiments for three iron tubes in
vertical position with different cross section shape (square, rectangular and circular) having the
same hydraulic diameter and total length. Many factors have been investigate to distinguish their
effect on the heat transfer coefficient and temperature distribution on the surface. These variables
are: various cross section shape, heat input and coolant flow rate of the condenser, with the
methanol as working fluid of fixed rate at operating pressure which is near to the atmospheric
pressure. It has been demonstrated that from the total comparison of all shapes in the same
conditions, the performance of the square thermosyphon is higher than that of circular and
rectangular thermosyphon, respectively. Also, it has been found that the highest value of the heat
transfer coefficient at the square thermosyphon (1812W/m2oC) when it is compared with the
practical results of the other two types geometric shapes.
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| first_indexed | 2024-03-13T00:11:21Z |
| format | Article |
| id | doaj.art-260adc3eb9814c66aaecee633a73a0d9 |
| institution | Directory Open Access Journal |
| issn | 1813-162X 2312-7589 |
| language | English |
| last_indexed | 2024-03-13T00:11:21Z |
| publishDate | 2013-07-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Engineering Sciences |
| spelling | doaj.art-260adc3eb9814c66aaecee633a73a0d92023-07-12T12:54:39ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892013-07-0121110.25130/tjes.21.1.12Effect of Thermosyphon cross section shape on the Heat Transfer CharacteristicsRaqeeb H. Rejab0Agriculture Machines and Equipments Dept., University of Mosul ,IraqThermosyphon is considered a heat transfer device in which its operating principle depends on the evaporation and condensation of a working fluid which use the gravity forces to ensure the fluid circulation. In the present paper, thermosyphon has been constructed to simulating the actual applications to study the characteristics of heat transfer and its influence on the variation of cross section shape. This paper, includes the procedure of a series experiments for three iron tubes in vertical position with different cross section shape (square, rectangular and circular) having the same hydraulic diameter and total length. Many factors have been investigate to distinguish their effect on the heat transfer coefficient and temperature distribution on the surface. These variables are: various cross section shape, heat input and coolant flow rate of the condenser, with the methanol as working fluid of fixed rate at operating pressure which is near to the atmospheric pressure. It has been demonstrated that from the total comparison of all shapes in the same conditions, the performance of the square thermosyphon is higher than that of circular and rectangular thermosyphon, respectively. Also, it has been found that the highest value of the heat transfer coefficient at the square thermosyphon (1812W/m2oC) when it is compared with the practical results of the other two types geometric shapes. https://tj-es.com/ojs/index.php/tjes/article/view/357 |
| spellingShingle | Raqeeb H. Rejab Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics Tikrit Journal of Engineering Sciences |
| title | Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics |
| title_full | Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics |
| title_fullStr | Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics |
| title_full_unstemmed | Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics |
| title_short | Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics |
| title_sort | effect of thermosyphon cross section shape on the heat transfer characteristics |
| url | https://tj-es.com/ojs/index.php/tjes/article/view/357 |
| work_keys_str_mv | AT raqeebhrejab effectofthermosyphoncrosssectionshapeontheheattransfercharacteristics |