Numerical study on the effect of phase change materials on heat transfer in asphalt concrete

Refaa, Zakariaa; Kakar, Muhammad Rafiq Khan; Stamatiou, Anastasia; Worlitschek, Jörg; Partl, Manfred N.; Bueno, Moisés (2018). Numerical study on the effect of phase change materials on heat transfer in asphalt concrete International Journal of Thermal Sciences, 133, pp. 140-150. Elsevier 10.1016/j.ijthermalsci.2018.07.014

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This work aims at exploring the impacts of phase change materials (PCMs) in asphalt pavement, particularly regarding their potential of minimizing high temperatures, responsible of the rutting failure in asphalt concrete pavement. For this purpose, we developed and validated a numerical model for the prediction of temperatures in asphalt pavement under real weather conditions, and accounting also for the presence of PCM in asphalt concrete pavement. The effects of PCM volume fraction in asphalt concrete were investigated by numerically simulating the thermal behavior of conventional asphalt concrete pavements with and without PCM components under real weather conditions. Parametric studies were additionally conducted to tailor the thermal behavior of asphalt concrete pavement (e.g. reducing surface temperature). Then, the effects of each thermal behavior modification on the mechanical properties of the asphalt concrete pavement were quantified, considering the complex modulus of bitumen and asphalt concrete. The developed numerical tool will help in future designs and optimizations of the thermal behavior of asphalt concrete with phase change materials with regards to real weather conditions.

Item Type:

Journal Article (Original Article)

Division/Institute:

School of Architecture, Wood and Civil Engineering
School of Architecture, Wood and Civil Engineering > Institute for Urban Development and Infrastructure > Transport Infrastructure

Name:

Refaa, Zakariaa;
Kakar, Muhammad Rafiq Khan;
Stamatiou, Anastasia;
Worlitschek, Jörg;
Partl, Manfred N. and
Bueno, Moisés

Subjects:

T Technology > TE Highway engineering. Roads and pavements

ISSN:

12900729

Publisher:

Elsevier

Language:

English

Submitter:

Muhammad Rafiq Khan Kakar

Date Deposited:

23 Mar 2022 11:16

Last Modified:

08 Apr 2022 08:37

Publisher DOI:

10.1016/j.ijthermalsci.2018.07.014

Uncontrolled Keywords:

Heat transfer, Asphalt concrete, Numerical simulation, PCM, Microcapsules

ARBOR DOI:

10.24451/arbor.16569

URI:

https://arbor.bfh.ch/id/eprint/16569

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