Heat transfer enhancement through pcm thermal storage by use of copper fins
Apstrakt
Enhancement of heat transfer over a cylinder shaped thermal energy storage filled by paraffin E53 by use of longitudinal rectangular copper fins was analyzed. The thermo-physical features of the storage material are determined in separate experiments and implemented to FLUENT software over user defined function. Advanced thermal storage geometry comprehension and optimization required introduction of a parameter suitable for the analysis of heat transfer enhancement, so the ratio of heat transfer surfaces as a factor was proposed and applied. It is revealed that increase of the ratio of heat transfer surfaces leads to the decrease of melting time and vice versa. Numerical analysis, employing the 3-D model built in Ansys software, observed storage reservoir geometries with variable number of longitudinal fins. The adjusted set of boundary conditions was carried out and both written in C language and implemented over user defined function in order to define variable heat flux along the h...eight of the heater. The comparison of acquired numerical and experimental results showed a strong correlation. Experimental validation of numerical results was done on the real thermal energy storage apparatus.
Ključne reči:
thermal energy storage / phase change material / paraffin / numerical modelingIzvor:
Thermal Science, 2016, 20, s251-s259Izdavač:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Finansiranje / projekti:
- Razvoj i unapređenje tehnologija za energetski efikasno korišćenje više formi poljoprivredne i šumske biomase na ekološki prihvatljiv način, uz mogućnost kogeneracije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42011)
- Unapređenje industrijskog postrojenja sa fluidizovanim slojem u okviru razvoja tehnologije za energetski efikasno i ekološki opravdano sagorevanje različitih otpadnih materija u fluidizacionom ložištu (RS-MESTD-Technological Development (TD or TR)-33042)
- Geohemijska ispitivanja sedimentnih stena - fosilna goriva i zagađivači životne sredine (RS-MESTD-Basic Research (BR or ON)-176006)
DOI: 10.2298/TSC1150729136R
ISSN: 0354-9836
WoS: 000378584200022
Scopus: 2-s2.0-84979896208
Institucija/grupa
Inovacioni centarTY - JOUR AU - Rudonja, Nedžad AU - Komatina, Mirko AU - Živković, Goran AU - Antonijević, Dragi PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2396 AB - Enhancement of heat transfer over a cylinder shaped thermal energy storage filled by paraffin E53 by use of longitudinal rectangular copper fins was analyzed. The thermo-physical features of the storage material are determined in separate experiments and implemented to FLUENT software over user defined function. Advanced thermal storage geometry comprehension and optimization required introduction of a parameter suitable for the analysis of heat transfer enhancement, so the ratio of heat transfer surfaces as a factor was proposed and applied. It is revealed that increase of the ratio of heat transfer surfaces leads to the decrease of melting time and vice versa. Numerical analysis, employing the 3-D model built in Ansys software, observed storage reservoir geometries with variable number of longitudinal fins. The adjusted set of boundary conditions was carried out and both written in C language and implemented over user defined function in order to define variable heat flux along the height of the heater. The comparison of acquired numerical and experimental results showed a strong correlation. Experimental validation of numerical results was done on the real thermal energy storage apparatus. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Heat transfer enhancement through pcm thermal storage by use of copper fins EP - s259 SP - s251 VL - 20 DO - 10.2298/TSC1150729136R ER -
@article{ author = "Rudonja, Nedžad and Komatina, Mirko and Živković, Goran and Antonijević, Dragi", year = "2016", abstract = "Enhancement of heat transfer over a cylinder shaped thermal energy storage filled by paraffin E53 by use of longitudinal rectangular copper fins was analyzed. The thermo-physical features of the storage material are determined in separate experiments and implemented to FLUENT software over user defined function. Advanced thermal storage geometry comprehension and optimization required introduction of a parameter suitable for the analysis of heat transfer enhancement, so the ratio of heat transfer surfaces as a factor was proposed and applied. It is revealed that increase of the ratio of heat transfer surfaces leads to the decrease of melting time and vice versa. Numerical analysis, employing the 3-D model built in Ansys software, observed storage reservoir geometries with variable number of longitudinal fins. The adjusted set of boundary conditions was carried out and both written in C language and implemented over user defined function in order to define variable heat flux along the height of the heater. The comparison of acquired numerical and experimental results showed a strong correlation. Experimental validation of numerical results was done on the real thermal energy storage apparatus.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Heat transfer enhancement through pcm thermal storage by use of copper fins", pages = "s259-s251", volume = "20", doi = "10.2298/TSC1150729136R" }
Rudonja, N., Komatina, M., Živković, G.,& Antonijević, D.. (2016). Heat transfer enhancement through pcm thermal storage by use of copper fins. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20, s251-s259. https://doi.org/10.2298/TSC1150729136R
Rudonja N, Komatina M, Živković G, Antonijević D. Heat transfer enhancement through pcm thermal storage by use of copper fins. in Thermal Science. 2016;20:s251-s259. doi:10.2298/TSC1150729136R .
Rudonja, Nedžad, Komatina, Mirko, Živković, Goran, Antonijević, Dragi, "Heat transfer enhancement through pcm thermal storage by use of copper fins" in Thermal Science, 20 (2016):s251-s259, https://doi.org/10.2298/TSC1150729136R . .