Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis
Heat transfer in shell and tube heat exchangers is in general described in terms of the relationships of Nuselt, Prandtl, and Reynold dimensionless numbers. One of the parameters of heat exchanger performance is convective heat transfer coefficient (h), and mathematical model can predict it. This st...
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Faculty of Engineering Universitas Indonesia
2022
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id-ugm-repo.2817882023-11-13T04:22:40Z https://repository.ugm.ac.id/281788/ Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis Susmiati, Yuana Purwantana, Bambang Bintoro, Nursigit Rahayoe, Sri Other Agricultural and Veterinary Sciences Agricultural Engineering Heat transfer in shell and tube heat exchangers is in general described in terms of the relationships of Nuselt, Prandtl, and Reynold dimensionless numbers. One of the parameters of heat exchanger performance is convective heat transfer coefficient (h), and mathematical model can predict it. This study aimed to find out the relationship of the parameters that affected the performance of vertical tubular baffle internal reboiler during ethanol distillation. The mathematical model was developed by a dimensional analysis with the π-Buckingham method. Several influencing parameters during the distillation process were identified to develop a mathematical model. The study was carried out on the distillation process of low-concentration ethanol, i.e., 10%, 20%, 30% using internal reboilers with different tube sizes, i.e., diameters of 1.27 cm, 2.54 cm, 3.81 cm and height of 4 cm, 6 cm, 8 cm, to obtain the value of h observation. Based on the results of the study, a heat transfer model was obtained, i.e., (Formula Presented), where Nu, Re, D, L, T, Cp, v, ρ, and k, are respectively Nuselt, Reynold, tube diameter, tube height, temperature, heat capacity, velocity, mass density, and thermal conductivity of the fluid (material). This model can be used to determine h prediction, and the result is following h observation with equation y = 0.98x and R² = 0.99. Based on the results of the study, it is known that differences in material concentration, diameter, and height of the reboiler tube affect the value of h Faculty of Engineering Universitas Indonesia 2022-07-01 Article PeerReviewed application/pdf en https://repository.ugm.ac.id/281788/1/Heat%20Transfer%20Characteristics%20in%20Vertical%20Tubular%20Baffle%20Internal%20Reboiler%20through%20Dimensional%20Analysis.pdf Susmiati, Yuana and Purwantana, Bambang and Bintoro, Nursigit and Rahayoe, Sri (2022) Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis. International Journal of Technology, 13 (3). pp. 508-517. ISSN 20869614 https://ijtech.eng.ui.ac.id/article/view/5170 https://doi.org/10.14716/ijtech.v13i3.5170 |
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Other Agricultural and Veterinary Sciences Agricultural Engineering Susmiati, Yuana Purwantana, Bambang Bintoro, Nursigit Rahayoe, Sri Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
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Heat transfer in shell and tube heat exchangers is in general described in terms of the relationships of Nuselt, Prandtl, and Reynold dimensionless numbers. One of the parameters of heat exchanger performance is convective heat transfer coefficient (h), and mathematical model can predict it. This study aimed to find out the relationship of the parameters that affected the performance of vertical tubular baffle internal reboiler during ethanol distillation. The mathematical model was developed by a dimensional analysis with the π-Buckingham method. Several influencing parameters during the distillation process were identified to develop a mathematical model. The study was carried out on the distillation process of low-concentration ethanol, i.e., 10%, 20%, 30% using internal reboilers with different tube sizes, i.e., diameters of 1.27 cm, 2.54 cm, 3.81 cm and height of 4 cm, 6 cm, 8 cm, to obtain the value of h observation. Based on the results of the study, a heat transfer model was obtained, i.e., (Formula Presented), where Nu, Re, D, L, T, Cp, v, ρ, and k, are respectively Nuselt, Reynold, tube diameter, tube height, temperature, heat capacity, velocity, mass density, and thermal conductivity of the fluid (material). This model can be used to determine h prediction, and the result is following h observation with equation y = 0.98x and R² = 0.99. Based on the results of the study, it is known that differences in material concentration, diameter, and height of the reboiler tube affect the value of h |
format |
Article PeerReviewed |
author |
Susmiati, Yuana Purwantana, Bambang Bintoro, Nursigit Rahayoe, Sri |
author_facet |
Susmiati, Yuana Purwantana, Bambang Bintoro, Nursigit Rahayoe, Sri |
author_sort |
Susmiati, Yuana |
title |
Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
title_short |
Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
title_full |
Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
title_fullStr |
Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
title_full_unstemmed |
Heat Transfer Characteristics in Vertical Tubular Baffle Internal Reboiler through Dimensional Analysis |
title_sort |
heat transfer characteristics in vertical tubular baffle internal reboiler through dimensional analysis |
publisher |
Faculty of Engineering Universitas Indonesia |
publishDate |
2022 |
url |
https://repository.ugm.ac.id/281788/1/Heat%20Transfer%20Characteristics%20in%20Vertical%20Tubular%20Baffle%20Internal%20Reboiler%20through%20Dimensional%20Analysis.pdf https://repository.ugm.ac.id/281788/ https://ijtech.eng.ui.ac.id/article/view/5170 https://doi.org/10.14716/ijtech.v13i3.5170 |
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