Temperature responses of asphalt mixture physical and finite element models constructed with phase change material

2018 ◽  
Vol 178 ◽  
pp. 529-541 ◽  
Author(s):  
Wei Si ◽  
Biao Ma ◽  
Xue-yan Zhou ◽  
Jun-ping Ren ◽  
Yu-xiang Tian ◽  
...  
Keyword(s):  
Finite Element ◽  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Mixture ◽  
Finite Element Models ◽  
Temperature Responses ◽  
Change Material

Investigation of thermal properties of spacer fabrics with phase changing material by finite element model and experiment

2020 ◽  
Vol 90 (15-16) ◽  
pp. 1837-1850 ◽  
Author(s):  
Rimantas Barauskas ◽  
Audrone Sankauskaite ◽  
Vitalija Rubeziene ◽  
Ausra Gadeikyte ◽  
Virginija Skurkyte-Papieviene ◽  
...  
Keyword(s):  
Finite Element ◽  
Phase Change ◽  
Specific Heat ◽  
Finite Element Simulation ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Experimental Results ◽  
Finite Element Models ◽  
Element Simulation ◽  
Change Material

This study presents the developed computational finite element models for transient heat transfer analysis in fabrics enriched by phase change materials along with efforts to provide validation on the basis of obtained experimental results. The environment-friendly butyl stearate is used as a phase change material. Its melting/heating absorption takes place in temperature range from 19℃ to 34℃, and the solidification/heat release occurs from 34℃ to 19℃. An important aspect in this analysis is the investigation of appropriateness of the material samples dimensions selected for effective heat capacity against temperature measurements. For this purpose, we used the combined experimental and finite element simulation-based analysis. A similar computational procedure enabled us to estimate the effective latent specific heat relationship of the fabric with phase change materials coating. The direct usage of differential scanning calorimetry (DSC) measurement-based specific heat relationships against temperature in the finite element models ensured good compliance of the computed results with the experiment. For validation of the developed computational models the infrared radiation heating-cooling experiments on fabrics with different deposits of a phase change material were performed. The noticeable influence of content of phase change materials for transient thermal behavior during heating-cooling cycles was determined. The experimental results have been compared against the finite element simulation results.

Application of phase change material in asphalt mixture – A review

2020 ◽  
Vol 263 ◽  
pp. 120219
Author(s):  
Yu Chen ◽  
Hainian Wang ◽  
Zhanping You ◽  
Nabil Hossiney
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Mixture ◽  
Change Material

scholarly journals A Review on Phase Change Materials Incorporation in Asphalt Pavement

2018 ◽  
Vol 3 (2) ◽  
pp. 171
Author(s):  
Intan Kumalasari ◽  
Madzlan Napiah ◽  
Muslich H. Sutanto
Keyword(s):  
Porous Material ◽  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Concrete ◽  
Phase Change Materials ◽  
Mechanical Performance ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Pavement Temperature ◽  
Change Material

Phase Change Material (later to be referred as PCM) has been successfully utilized in some areas. PCM has emerged as one of the materials for pavement temperature reducing due to its latent heat. Some research has been done regarding this topic. The objective of this paper is to review the development of PCM in asphalt pavement. The review has shown that organic PCM appears as the favourite PCM in asphalt concrete studies. Choice of porous material depends on method of incorporation. Reduction of temperature in PCM-asphalt mixture compared to conventional one is undoubtable. However, the mechanical performance of PCM-asphalt mixture need to be explored.

Preparation and Properties of Composite Shape-Stabilized Phase Change Material for Asphalt Mixture

2011 ◽  
Vol 71-78 ◽  
pp. 118-121 ◽  
Author(s):  
Biao Ma ◽  
Jun Ma ◽  
Da Long Wang ◽  
Shui Gen Peng
Keyword(s):  
Activated Carbon ◽  
Physical Properties ◽  
Phase Change ◽  
Phase Change Material ◽  
Ethyl Cellulose ◽  
Particle Surface ◽  
Asphalt Mixture ◽  
Change Material ◽  
Packing Method ◽  
Thermo Physical Properties

Mixing the phase change material (PCM) into asphalt mixture could change the thermo physical properties of asphalt mixture. Asphalt mixture with PCM can remain in the ideal working temperature range for a relatively long time. However, the PCM easily leaks from asphalt mixture in the process of using. To solve this problem, the carrier-adsorbed packing method is applied to modify PCM in this paper. Different carriers and packaging materials are used to prepare three kinds of composite shape-stabilized phase change energy storage material (CPCM). Their microscopic characteristics and thermo physical properties are analyzed by scanning electron microscope and differential scanning calorimetry, respectively. The results show that the gel of silicon incompletely packed the macropores of activated carbon and the clustered silica, and the ethyl cellulose completely coated the clustered silica whose particle size increases and particle surface forms a compacted thin film. The phase transition temperature and latent heat of CPCM with silica are higher than CPCM with activated carbon. The PCM absorption of silica is greater than the PCM absorption of activated carbon. The mass fraction of CPCM packed by the EC is larger than the CPCM packed by the gel-sol method. The results indicate that the carrier-adsorbed packing method can effectively solve the problem of PCM leaking from asphalt mixture. The CPCM prepared with silica and ethyl cellulose is the most suitable for asphalt mixture.

Phase Change Materials Applied in Thermal Design

2013 ◽  
Vol 750-752 ◽  
pp. 1211-1214
Author(s):  
Shu Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Solar Energy ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Thermal Design ◽  
Electronic Equipment ◽  
Element Analysis ◽  
Change Material

Phase change material has been widely used in the fields of solar energy, aerospace, aviation, and buildings. In this paper, paraffin is applied in the thermal design of electronic equipment, in order to maintain a constant working circumstance. Finite-element analysis is implemented to analyze the feasibility of this thermal design.

Effect of Composite Shape-Stabilized Phase Change Material on Asphalt Mixture Temperature

2011 ◽  
Vol 311-313 ◽  
pp. 2151-2154 ◽  
Author(s):  
Biao Ma ◽  
Jun Li ◽  
Xiao Man Wang ◽  
Nan Xiao
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Mixture ◽  
Maximum Temperature ◽  
Heating Process ◽  
Test Results ◽  
Low Temperature Cracking ◽  
Heating Test ◽  
Change Material ◽  
Monotonic Heating

It provides a new way to solve the worldwide the low-temperature cracking and high temperature rutting distresses of the asphalt pavement, by mixing the composite shape-stabilized phase change material (CSPCM) to asphalt mixture. The effect of CSPCM on the temperature of asphalt mixture is analyzed by the monotonic cooling test, the monotonic heating test and the outdoor simulating cycle test. The results of monotonic cooling and heating tests indicate that mixing CSPCM into asphalt mixture can increase the temperature of asphalt mixture during cooling process and decrease the temperature of asphalt mixture during heating process. It has a temperature damping effect as well. The results of outdoor simulation test shows that mixing CSPCM into asphalt mixture decreases the maximum temperature of the bottom of the specimen and increases the minimum temperature of the bottom of the specimen. It cannot change the critical temperature occurring time of the bottom of the specimen. The test results indicate that mixing CSPCM into asphalt mixture could actively adjust the working temperature of asphalt mixture, prolong the ideal temperature of asphalt mixture and improve asphalt mixture’s adaptability to the changing environment.

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