Heat transfer between a packed bed and a larger immersed spherical particle
Само за регистроване кориснике
2014
Аутори
Pešić, RadojicaKaluđerović-Radoičić, Tatjana
Bošković-Vragolović, Nevenka
Arsenijević, Zorana
Grbavčić, Željko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, heat transfer coefficients between the hot packed beds of particles and the larger cold immersed sphere were experimentally determined. The packed beds consisted of mono-sized spherical glass particles of d(p), = 1.2, 1.94 and 2.98 mm. The aluminum test spheres of D-p = 6, 12 and 20 mm with K-type (Ni/A1) thermocouples inserted in them were immersed into the bed. The temperatures of the test spheres were recorded until the thermal equilibrium was reached. From these recordings, heat transfer coefficients were determined. The experiments were performed in the range of gas superficial velocity of similar to 0.3-0.8 m/s and the bed temperature from 90 to 320 degrees C. It was found that the measured heat transfer coefficients increased with the increase in gas superficial velocity, while only a slight increase with temperature was observed for test spheres D-p = 6 and 12 mm in the investigated temperature interval. The heat transfer coefficients were generally larger for sm...aller test spheres, while they did not show significant dependence on the size of the bed particles. The literature correlations for heat transfer coefficients in packed beds in form of Nusselt number and heat transfer factor j(H) were compared to experimental data from this work. The correlations proposed by Collier et al. (2004) [18] and Handley and Heggs (1968) [2] fit our experimental data best. The mean error between the experimentally determined heat transfer coefficients and the ones calculated from Collier et al. (2004) [18] correlation was 12.7%.
Кључне речи:
Heat transfer / Packed bed / Immersed spherical particleИзвор:
International Journal of Heat and Mass Transfer, 2014, 78, 130-136Издавач:
- Pergamon-Elsevier Science Ltd, Oxford
Финансирање / пројекти:
- Развој ефикаснијих хемијско-инжењерских процеса заснован на истраживањима феномена преноса и принципима интензификације процеса (RS-MESTD-Basic Research (BR or ON)-172022)
DOI: 10.1016/j.ijheatmasstransfer.2014.06.040
ISSN: 0017-9310
WoS: 000342248600016
Scopus: 2-s2.0-84904550634
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Pešić, Radojica AU - Kaluđerović-Radoičić, Tatjana AU - Bošković-Vragolović, Nevenka AU - Arsenijević, Zorana AU - Grbavčić, Željko PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2727 AB - In this paper, heat transfer coefficients between the hot packed beds of particles and the larger cold immersed sphere were experimentally determined. The packed beds consisted of mono-sized spherical glass particles of d(p), = 1.2, 1.94 and 2.98 mm. The aluminum test spheres of D-p = 6, 12 and 20 mm with K-type (Ni/A1) thermocouples inserted in them were immersed into the bed. The temperatures of the test spheres were recorded until the thermal equilibrium was reached. From these recordings, heat transfer coefficients were determined. The experiments were performed in the range of gas superficial velocity of similar to 0.3-0.8 m/s and the bed temperature from 90 to 320 degrees C. It was found that the measured heat transfer coefficients increased with the increase in gas superficial velocity, while only a slight increase with temperature was observed for test spheres D-p = 6 and 12 mm in the investigated temperature interval. The heat transfer coefficients were generally larger for smaller test spheres, while they did not show significant dependence on the size of the bed particles. The literature correlations for heat transfer coefficients in packed beds in form of Nusselt number and heat transfer factor j(H) were compared to experimental data from this work. The correlations proposed by Collier et al. (2004) [18] and Handley and Heggs (1968) [2] fit our experimental data best. The mean error between the experimentally determined heat transfer coefficients and the ones calculated from Collier et al. (2004) [18] correlation was 12.7%. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - International Journal of Heat and Mass Transfer T1 - Heat transfer between a packed bed and a larger immersed spherical particle EP - 136 SP - 130 VL - 78 DO - 10.1016/j.ijheatmasstransfer.2014.06.040 ER -
@article{ author = "Pešić, Radojica and Kaluđerović-Radoičić, Tatjana and Bošković-Vragolović, Nevenka and Arsenijević, Zorana and Grbavčić, Željko", year = "2014", abstract = "In this paper, heat transfer coefficients between the hot packed beds of particles and the larger cold immersed sphere were experimentally determined. The packed beds consisted of mono-sized spherical glass particles of d(p), = 1.2, 1.94 and 2.98 mm. The aluminum test spheres of D-p = 6, 12 and 20 mm with K-type (Ni/A1) thermocouples inserted in them were immersed into the bed. The temperatures of the test spheres were recorded until the thermal equilibrium was reached. From these recordings, heat transfer coefficients were determined. The experiments were performed in the range of gas superficial velocity of similar to 0.3-0.8 m/s and the bed temperature from 90 to 320 degrees C. It was found that the measured heat transfer coefficients increased with the increase in gas superficial velocity, while only a slight increase with temperature was observed for test spheres D-p = 6 and 12 mm in the investigated temperature interval. The heat transfer coefficients were generally larger for smaller test spheres, while they did not show significant dependence on the size of the bed particles. The literature correlations for heat transfer coefficients in packed beds in form of Nusselt number and heat transfer factor j(H) were compared to experimental data from this work. The correlations proposed by Collier et al. (2004) [18] and Handley and Heggs (1968) [2] fit our experimental data best. The mean error between the experimentally determined heat transfer coefficients and the ones calculated from Collier et al. (2004) [18] correlation was 12.7%.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "International Journal of Heat and Mass Transfer", title = "Heat transfer between a packed bed and a larger immersed spherical particle", pages = "136-130", volume = "78", doi = "10.1016/j.ijheatmasstransfer.2014.06.040" }
Pešić, R., Kaluđerović-Radoičić, T., Bošković-Vragolović, N., Arsenijević, Z.,& Grbavčić, Ž.. (2014). Heat transfer between a packed bed and a larger immersed spherical particle. in International Journal of Heat and Mass Transfer Pergamon-Elsevier Science Ltd, Oxford., 78, 130-136. https://doi.org/10.1016/j.ijheatmasstransfer.2014.06.040
Pešić R, Kaluđerović-Radoičić T, Bošković-Vragolović N, Arsenijević Z, Grbavčić Ž. Heat transfer between a packed bed and a larger immersed spherical particle. in International Journal of Heat and Mass Transfer. 2014;78:130-136. doi:10.1016/j.ijheatmasstransfer.2014.06.040 .
Pešić, Radojica, Kaluđerović-Radoičić, Tatjana, Bošković-Vragolović, Nevenka, Arsenijević, Zorana, Grbavčić, Željko, "Heat transfer between a packed bed and a larger immersed spherical particle" in International Journal of Heat and Mass Transfer, 78 (2014):130-136, https://doi.org/10.1016/j.ijheatmasstransfer.2014.06.040 . .