Study on Binary Fatty Acids/ Sepiolite Composite Phase Change Material

2011 ◽  
Vol 374-377 ◽  
pp. 807-810 ◽  
Author(s):  
Jian Hong Deng ◽  
Wen Biao Li ◽  
Da Hua Jiang
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Energy Storage Materials ◽  
Binary Phase ◽  
Good Energy ◽  
Save Energy ◽  
Composite Energy ◽  
Change Material

Lauric acid/stearic acid as the binary phase change materials, modified sepiolite as the inorganic carrier, organic/inorganic composite energy storage materials was prepared by melting adsorption.Comprehensive experiment results show that binary phase change material is lower than single one at initial phase change temperature and phase change peak temperature, and it has good energy storage results, the composite material can be used in energy storage and heat recovery system to save energy.

scholarly journals Enhancement of heat transfer in phase change material using graphite-paraffin composites

2018 ◽  
Vol 172 ◽  
pp. 02001
Author(s):  
R Sathiyaraj. ◽  
R Rakesh. ◽  
N Mithran. ◽  
M Venkatesan.
Keyword(s):  
Thermal Conductivity ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Thermal Environment ◽  
Graphite Powder ◽  
Energy Storage Materials ◽  
Melting Period ◽  
Change Material

Phase change materials (PCMs) are energy storage materials which can be used for maintaining a controlled thermal environment for various applications in earth and space. PCMs are used in advanced technologies in aerospace cooling applications like heat exchangers and heat pipes for re-entry vehicles and spacecraft. Paraffin is a phase change material (PCM) commonly used for energy storage-related applications. Paraffin wax exhibits slow thermal response due to low thermal conductivity value (~0.2 W/m K for most paraffin waxes). In the present work, an attempt is made to fabricate a composite PCM using graphite powder. Such a composite material has enhanced thermal conductivity along with reduced melting period which are desirable properties of a PCM during solid to liquid phase change process. The reduction in melting period is indicated by the difference in change in temperature measured by the thermocouples during a specified time. The temperature variation and solid-liquid interface formation during the melting process are experimentally studied. The results showed that composite graphite powder with paraffin can improve the total phase transition time.

Studies on Preparation and Properties of PEG/MMT Solid-Solid Phase Change Material

2012 ◽  
Vol 512-515 ◽  
pp. 1712-1715
Author(s):  
Xiao Hua Gu ◽  
Bao Yun Xu ◽  
Jia Liang Zhou ◽  
Shi Wei Li
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Energy Storage Materials ◽  
Scanning Calorimetry ◽  
Storage Behavior ◽  
Change Material

This paper details the preparation of one kind of PEG/MMT solid-solid phase change materials. With polyethylene glycol (PEG) as the phase change materials, montmorillonite (MMT) as skeletons, through the graft copolymerization method, prepare PEG/MMT solid-solid phase change energy storage materials. The structure, the phase transition behavior and thermal stability of PEG/MMT phase change materials were analyzed and studied by infrared spectroscopy (FTIR), thermogravimetry (TG) and differential scanning calorimetry (DSC), and studied the influence of different molecular weight PEG on the capability and structure of the material, polymer phase change energy storage behavior and crystallization behavior. Finally, The PEG/MMT solid-solid phase change material could improve enthalpy value and thermal stability.

scholarly journals Performance Improvement of a Household Refrigerator using Phase Change Material

2021 ◽  
Vol 16 (1) ◽  
pp. 032-041
Author(s):  
Pradeep N ◽  
Somesh Subramanian S
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Energy Savings ◽  
Storage System ◽  
Thermal Storage ◽  
Latent Heat Storage ◽  
Peak Loads ◽  
Change Material

Thermal energy storage through phase change material has been used for wide applications in the field of air conditioning and refrigeration. The specific use of this thermal storage has been for energy storage during low demand and release of this energy during peak loads with potential to provide energy savings due to this. The principle of latent heat storage using phase change materials (PCMs) can be incorporated into a thermal storage system suitable for using deep freezers. The evaporator is covered with another box which has storage capacity or passage through phase change material. The results revealed that the performance is increased from 3.2 to 3.5 by using PCM.

Dissipative particle dynamics study of nano-encapsulated thermal energy storage phase change material

RSC Advances ◽  
2014 ◽  
Vol 4 (74) ◽  
pp. 39552-39557 ◽  
Author(s):  
Zhonghao Rao ◽  
Xinyu You ◽  
Yutao Huo ◽  
Xinjian Liu
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Thermophysical Properties ◽  
Phase Change Materials ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Change Material

The nano-encapsulated phase change materials (PCM), which have several good thermophysical properties, were proposed as potential for thermal energy storage.

scholarly journals Designs of PCM based heat exchangers constructions for thermal energy storage tanks – examples and case study for selected design

2018 ◽  
Vol 70 ◽  
pp. 01010
Author(s):  
Marta Kuta ◽  
Dominika Matuszewska ◽  
Tadeusz Michał Wójcik
Keyword(s):  
Energy Storage ◽  
Heat Exchanger ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
New Technologies ◽  
Tube Heat Exchanger ◽  
Change Material

Increasing energy consumption in residential and public buildings requires development of new technologies for thermal energy production and storage. One of possibilities for the second listed need is the use of phase change materials (PCMs). This work is focused on solutions in this area and consists of two parts. First one is focused on different designs of thermal energy storage (TES) tanks based on the phase change materials. The second part is the analysis of tests results for TES tank containing shelf and tube heat exchanger and filled with phase change material. Thermal energy storage tank is analyzed in order to use it in domestic heating and hot utility water installations. The aim of this research was to check the applicability of phase change material for mentioned purpose. Results show that using phase change materials for thermal energy storage can increase amount of stored heat. The use of properly selected PCM and heat exchanger enables the process of thermal energy storing and releasing to become more efficient.

scholarly journals A thermal energy storage composite by incorporating microencapsulated phase change material into wood

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8097-8103 ◽  
Author(s):  
Wenbin Wang ◽  
Huimin Cao ◽  
Jingyi Liu ◽  
Shifang Jia ◽  
Lin Ma ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Microencapsulated Phase Change Material ◽  
Microencapsulated Phase Change Materials ◽  
The Matrix ◽  
Change Material

Phase change energy storage wood (PCESW) was prepared by using microencapsulated phase change materials (MicroPCM) as thermal energy storage (TES) materials and wood as the matrix.

Analysis of Phase Change Energy Storage Material Selected Based on Rural Kang Body

2014 ◽  
Vol 521 ◽  
pp. 699-702
Author(s):  
Hui Xing Li ◽  
Hong Yu Ding ◽  
Guo Hui Feng ◽  
Xiao Xu Cai
Keyword(s):  
Energy Storage ◽  
Surface Temperature ◽  
Phase Change ◽  
Energy Saving ◽  
Phase Change Material ◽  
Heat Storage ◽  
Material Selection ◽  
Energy Storage Materials ◽  
Storage Materials ◽  
Change Material

Improving rural living thermal environment and rural residential energy-saving effect has becomes a hot society issue. As to two main problems of rural kang which are poor regenerative performance and surface temperature uneven,combined with the characteristics of phase change energy storage technologies,phase change energy storage technology was used in kang body. Grasping the properties and characteristics of different types of energy storage materials,according to the requirement of the human body comfort temperature of the kang surface,selecting phase transition temperature of the phase change energy storage materials which should be put forward kang surface comfort temperature between 24 ~ 35°Cphase change heat storage is particularly important. Through the phase change material selection, get three types of phase change thermal storage materials which are suitable for rural kang, which provides analysis method and basic reference for the selection of the phase change material to kang body, enhanced the heat storage capacity of kang,protected kang surface temperature uniformity and improved the energy-saving efficiency of housing in rural areas.

Investigation and Development on Phase Change Energy Storage in Adjustment and Control of Building Indoor Temperature

2014 ◽  
Vol 488-489 ◽  
pp. 803-808
Author(s):  
Wei Huan Li ◽  
Xiao Qin Zhu ◽  
Jin Hu ◽  
Jing Hua Chang ◽  
Hai Yang Ni ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Energy Saving ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Effective Means ◽  
Future Research ◽  
Indoor Temperature ◽  
And Control ◽  
Change Material

Since energy storage with phase change materials is an effective means of energy saving or conservation in buildings, its investigation and applications have received more and more during the recent years. The research actuality on energy saving of adjustment and control of building indoor temperature was summarized in this paper, and the two types of the major techniques with phase change material applied in adjustment and control of building indoor temperature was reviewed, in which one is the technique combined phase change material with building maintenance structure, the other is the technique to make phase change material applied to heating or air conditioning systems. The future research of phase change energy storage in adjustment and control of building indoor temperature was prospected.

The Investigation of Phase Change Emulsion (PCE): Fabrication, Thermal Conductivity and Utilization of Nanoparticles

2013 ◽  
Vol 860-863 ◽  
pp. 862-866 ◽  
Author(s):  
Yi Fei Zheng ◽  
Zhong Zhu Qiu ◽  
Jie Chen
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Heat Storage ◽  
Change Material

Phase change materials in the form of emulsion (PCE) is a category of novel phase change fluid used as heat storage and transfer media. It plays an important role in commercially viable applications (energy storage, particularly).The emulsion is made of microparticles of a phase change wax (a kind of paraffin or mixture ) as a phase change material (PCM), mixed paraffin directly with water. This paper presents information on the different PCM emulsions by different researchers. It gives the method of preparation of the PCE, and makes a special effort to investigate the heat transfer phenomena and the method of enhancing the thermal conductivity of the emulsion.

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