Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.13091/474
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Doğan, Sercan | - |
dc.contributor.author | Darıcı, Selçuk | - |
dc.contributor.author | Özgören, Muammer | - |
dc.date.accessioned | 2021-12-13T10:26:47Z | - |
dc.date.available | 2021-12-13T10:26:47Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.issn | 1879-2189 | - |
dc.identifier.uri | https://doi.org/10.1016/j.ijheatmasstransfer.2019.118731 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.13091/474 | - |
dc.description.abstract | The plain fin and circular tubes are generally used in heat exchangers of cooling systems. Numerous studies aiming at enhancing the thermal and hydraulic performances of this type of heat exchangers by changing the fin geometries are present in literature. In the present study, thermal and hydraulic performances of the heat exchangers with circular and elliptical tube have been compared using computational fluid dynamic method. Initially, the validation and comparison were done for the obtained data of the finned and circular tube design with respect to the performance results of the finned and circular tube design in the literature. The ellipticity ratios for the staggered arrangements of heat exchangers were changed within the range of b/a = 0.307-1.0. Numerical studies were performed with ANSYS-Fluent software within the range of Re = 750-2850 based on the fin spacing. As a result of the numerical validation studies, all analyses were solved by utilizing the SST k-omega turbulence model yielding closer values to the available studies similar to literature. Colburn factor j, friction factor f, JF values being the efficiency index and normalized j*, f* and JF* values were calculated and presented graphically. Moreover, temperature contours and streamline patterns were visually presented to evaluate the flow structures around the six different arrangements and to explain the physical reasons of pressure drop and heat transfer phenomena. The largest values of the Colburn factor j and the friction factor f known respectively as an indicator of heat transfer and a measure of pressure drop were obtained for the circular-tube-design ratio of b/a = 1.0 when compared to the other arrangements. According to the JF values, which is the efficiency index and the integrated outcome of heat transfer and pressure drop, the best result was obtained for the model with the diameter ratio of b/a = 0.307. Variations of the JF values for the arrangements of b/a = 0.333 and b/a = 0.307 depending on Reynolds numbers were found to be significantly close to each other. Finally, it is demonstrated that elliptical cross-section tubes with a better design in terms of lower pressure drop and less separated flow structures can be preferred in heat exchanger applications in order to provide energy saving. (C) 2019 Elsevier Ltd. All rights reserved. | en_US |
dc.description.sponsorship | Republic of Turkey Ministry of Industry and Technology under the SANTEZ program | en_US |
dc.description.sponsorship | The authors thank to Republic of Turkey Ministry of Industry and Technology for the partial financial support under the SANTEZ program during the period of 2013-2016 years. | en_US |
dc.language.iso | en | en_US |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | en_US |
dc.relation.ispartof | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Cfd | en_US |
dc.subject | Cooling System | en_US |
dc.subject | Elliptical Tubes | en_US |
dc.subject | Heat Transfer | en_US |
dc.subject | Thermal-Hydraulic Performance | en_US |
dc.subject | Pressure-Drop Characteristics | en_US |
dc.subject | Air-Side Performance | en_US |
dc.subject | Membrane Tube Bank | en_US |
dc.subject | Plate-Fin | en_US |
dc.subject | Friction Characteristics | en_US |
dc.subject | Fluid-Flow | en_US |
dc.subject | Pcm Solidification | en_US |
dc.subject | Nanoparticles | en_US |
dc.subject | Vortex | en_US |
dc.subject | Model | en_US |
dc.title | Numerical comparison of thermal and hydraulic performances for heat exchangers having circular and elliptic cross-section | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2019.118731 | - |
dc.identifier.scopus | 2-s2.0-85072554024 | en_US |
dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Endüstri Mühendisliği Bölümü | en_US |
dc.authorwosid | Ozgoren, Muammer/AAK-8731-2021 | - |
dc.identifier.volume | 145 | en_US |
dc.identifier.wos | WOS:000494883600029 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.authorscopusid | 55823030700 | - |
dc.authorscopusid | 36337803100 | - |
dc.authorscopusid | 6701714934 | - |
dc.identifier.scopusquality | Q1 | - |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.grantfulltext | embargo_20300101 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.dept | 02.10. Department of Mechanical Engineering | - |
crisitem.author.dept | 02.10. Department of Mechanical Engineering | - |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
Files in This Item:
File | Size | Format | |
---|---|---|---|
1-s2.0-S0017931019314620-main.pdf Until 2030-01-01 | 5.23 MB | Adobe PDF | View/Open Request a copy |
CORE Recommender
SCOPUSTM
Citations
15
checked on Apr 20, 2024
WEB OF SCIENCETM
Citations
32
checked on Apr 20, 2024
Page view(s)
88
checked on Apr 22, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.