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.

scholarly journals The Emergence of Phase Change Material in Solar Thermal Energy: A Scientometric Review

2021 ◽  
Vol 16 ◽  
pp. 1-9
Author(s):  
NORHUDA ABDUL MANAF ◽  
Muhammad Hussin Abdul Jabar ◽  
Muhammad Hussin Abdul Jabar ◽  
Nor Ruwaida Jamian
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Energy System ◽  
Solar Thermal ◽  
Heating Process ◽  
Solar Thermal Energy ◽  
Moderate Growth ◽  
Readiness Level ◽  
Change Material

Phase change material (PCM) features an attractive option due to its solar thermal storage capability to assist the cooling/heating process especially during night operation, thus contributing to the reduction of energy cost and carbon footprint. This study aims to analyse the emergence of PCM in the application of solar thermal energy. Subsequently, to envisage Technology Readiness Level (TRL) and commercialisation opportunity based on historical and contemporary research trends. This review encompasses of peer-reviewed literatures from Scopus database for one decade between 2010 and 2019. Based on the review, there is a moderate growth on the research related to PCM-solar thermal at 22% of emergence rate from the past one decade. China has dominated in this research development by concurring approximately 22% from the number of research articles published globally. It can be concluded that the application of PCM in solar thermal energy system is at TRL 5 which reflects research and development (R&D) progress is at intermediate prototypical development based on the trend of academic publication. Furthermore, based on the review, PCM features great potential in commercialisation opportunity due to its vital contribution as a frontier material/substance in overcoming the challenges of energy and environmental insecurity.

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 Experimental Investigation on Thermal Management of Electric Vehicle Battery Module with Paraffin/Expanded Graphite Composite Phase Change Material

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Jiangyun Zhang ◽  
Xinxi Li ◽  
Fengqi He ◽  
Jieshan He ◽  
Zhaoda Zhong ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Management ◽  
Expanded Graphite ◽  
Peak Temperature ◽  
Maximum Temperature ◽  
Air Cooling ◽  
Composite Phase Change Material ◽  
Change Material ◽  
Battery Module

The temperature has to be controlled adequately to maintain the electric vehicles (EVs) within a safety range. Using paraffin as the heat dissipation source to control the temperature rise is developed. And the expanded graphite (EG) is applied to improve the thermal conductivity. In this study, the paraffin and EG composite phase change material (PCM) was prepared and characterized. And then, the composite PCM have been applied in the 42110 LiFePO4 battery module (48 V/10 Ah) for experimental research. Different discharge rate and pulse experiments were carried out at various working conditions, including room temperature (25°C), high temperature (35°C), and low temperature (−20°C). Furthermore, in order to obtain the practical loading test data, a battery pack with the similar specifications by 2S∗2P with PCM-based modules were installed in the EVs for various practical road experiments including the flat ground, 5°, 10°, and 20° slope. Testing results indicated that the PCM cooling system can control the peak temperature under 42°C and balance the maximum temperature difference within 5°C. Even in extreme high-discharge pulse current process, peak temperature can be controlled within 50°C. The aforementioned results exhibit that PCM cooling in battery thermal management has promising advantages over traditional air cooling.

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.

scholarly journals Climate-Based Analysis for the Potential Use of Coconut Oil as Phase Change Material in Buildings

2021 ◽  
Vol 13 (19) ◽  
pp. 10731
Author(s):  
Cibele Eller ◽  
Mohamad Rida ◽  
Katharina Boudier ◽  
Caio Otoni ◽  
Gabriela Celani ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Coconut Oil ◽  
Economic Feasibility ◽  
Maximum Temperature ◽  
Scanning Calorimetry ◽  
Temperature Range ◽  
Demand Reduction ◽  
Wide Availability ◽  
Change Material

One of the most efficient measures to reduce energy consumption in buildings is using passive thermal comfort strategies. This paper shows the potential of coconut oil as a bio-based phase change material (PCM) incorporated into construction components to improve the thermal performance of buildings for several climates, due to its environmental advantages, wide availability, and economic feasibility. The thermophysical properties of coconut oil were determined through differential scanning calorimetry. Numerical simulations were conducted in ESP-r, comparing an office space with a gypsum ceiling to one with coconut oil as PCM for 12 climate types in the Köppen–Geiger classification. The results show that coconut oil is a suitable PCM for construction applications under tropical and subtropical climates. This PCM can provide year-round benefits for these climates, even though a higher melting point is needed for optimum performance during hotter months. The highest demand reduction of 32% and a maximum temperature reduction of 3.7 °C were found in Mansa, Zambia (Cwa climate). The best results occur when average outdoor temperatures are within the temperature range of phase change. The higher the diurnal temperature range, the better the results. Our findings contribute to a better understanding of coconut oil in terms of its properties and potential for application in the building sector as PCM.

scholarly journals Desain Sistem Pendingin Kemasan Baterai Litium Ion Kapasitas Pengisian Cepat dengan PCM (Phase Change Material) dan Pelat Pendingin

2021 ◽  
Vol 6 (1) ◽  
pp. 12-19
Author(s):  
Choirul Anwar ◽  
Agus Suprayitno
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Cooling System ◽  
Battery Pack ◽  
Maximum Temperature ◽  
Discharge Process ◽  
Battery Charging ◽  
Cooling Plate ◽  
Battery Discharge ◽  
Change Material

Battery performance is affected by the problem of overheating which can cause mechanical damage to the battery and electronic components of the BMS (Battery Management System). With the need for an increase in battery charging time with fast capacity, the internal heat generated by the battery also increases so that the battery pack needs to be equipped with a cooling system. Currently, the cooling system in the battery pack uses a lot of cooling plate, cooling pipe, PCM (Phase Change Material) and cooling fluid. Combining cooling system design based on advantages and disadvantages to produce the best performance was tried using the cooling plate and PCM. The method used is to change the initial design of the battery pack without cooling to a cooling system by making a design and verifying the design. The process of thermal analysis is carried out in the process of charging the battery and removing the battery. The result of the research is the distribution of heat transfer that occurs during the battery charging process and the battery discharge is uniform and the temperature value obtained is the 43,2 °C battery discharge process in the main cooling plate component and the maximum temperature in the charging process is 57,6°C. at BMS. Cooling using a cooling plate and PCM for a closed system is maximized. Keywords: baterai Litium-Ion, Heat Sink, PCM

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.

Numerical Study of Performance Enhancement of Single-Shot Heat Sinks Using Nano-Enhanced Phase Change Material

2011 ◽  
Author(s):  
Ingrid Cotoros ◽  
Ab Hashemi
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Heat Sink ◽  
Performance Enhancement ◽  
State Of The Art ◽  
Numerical Study ◽  
Heat Sinks ◽  
Maximum Temperature ◽  
Single Shot ◽  
Change Material

A numerical model and analysis has been performed on a state-of-the art one shot heat sink including an eicosane/carbon nanotubes (CNT) system of nano-enhanced phase change material (NEPCM). The nanoparticles, dispersed in the PCM liquid phase, can form a network of interconnected ballistic heat transport lines, thus increasing the thermal conductivity of the PCM by almost two orders of magnitude. The results show that the heat sink can be operated with a 40% higher heat load, for an extra 42% time, or with a 29% lighter mass, before the electronics reach the allowable maximum temperature.

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