The Research Situation and Development Trend of Energy Saving Phase Change Materials

2011 ◽  
Vol 415-417 ◽  
pp. 2012-2015
Author(s):  
Bao Ping Yang ◽  
Yan Hua Li ◽  
Jin Feng Cui ◽  
Jun Hong Guo ◽  
Ying Ping Zhou ◽  
...  
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials ◽  
Development Trend ◽  
Difficult Problem ◽  
Energy Utilization ◽  
Current Status ◽  
Living Standard ◽  
Promising Development ◽  
High Degree

The energy saving principle of phase change materials is introduced briefly， the current status of the energy saving phase change materials and the newest progress are also discussed. The promising development trend of the energy saving phase change materials is prospected. With the effect of energy crisis, the difficult problem which we face is the energy consumption, energy saving and emission reduction is the first question that should be solved in all works of life. As the living standard improved, the human comfort require of indoor environment become more strict. Because of air conditioning making the power system load too large, energy saving technology has been paid a high degree of attention, and energy saving phase change materials ,as a new materials, has gradually become a focus in the study of energy utilization and material science.

scholarly journals Energy Saving and Charging Discharging Characteristics of Multiple PCMs Subjected to Internal Air Flow

Fluids ◽  
2021 ◽  
Vol 6 (8) ◽  
pp. 275
Author(s):  
Ahmed J. Hamad
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Air Temperature ◽  
Temperature Control ◽  
Phase Change Materials ◽  
Energy Savings ◽  
Heating System ◽  
Air Heating ◽  
Room Model ◽  
Model Temperature

One essential utilization of phase change materials as energy storage materials is energy saving and temperature control in air conditioning and indirect solar air drying systems. This study presents an experimental investigation evaluating the characteristics and energy savings of multiple phase change materials subjected to internal flow in an air heating system during charging and discharging cycles. The experimental tests were conducted using a test rig consisting of two main parts, an air supply duct and a room model equipped with phase change materials (PCMs) placed in rectangular aluminum panels. Analysis of the results was based on three test cases: PCM1 (Paraffin wax) placed in the air duct was used alone in the first case; PCM2 (RT–42) placed in the room model was used alone in the second case; and in the third case, the two PCMs (PCM1 and PCM2) were used at the same time. The results revealed a significant improvement in the energy savings and room model temperature control for the air heating system incorporated with multiple PCMs compared with that of a single PCM. Complete melting during the charging cycle occurred at temperatures in the range of 57–60 °C for PCM1 and 38–43 °C for PCM2, respectively, thereby validating the reported PCMs’ melting–solidification results. Multiple PCMs maintained the room air temperature at the desired range of 35–45.2 °C in the air heating applications by minimizing the air temperature fluctuations. The augmentation in discharging time and improvement in the room model temperature using multiple PCMs were about 28.4% higher than those without the use of PCMs. The total energy saving using two PCMs was higher by about 29.5% and 46.7% compared with the use of PCM1 and PCM2, respectively. It can be concluded that multiple PCMs have revealed higher energy savings and thermal stability for the air heating system considered in the current study.

New techniques for the energy saving of sustainable buildings by using phase change materials

2021 ◽  
Vol 41 ◽  
pp. 102418
Author(s):  
Ashraf Mohamed Heniegal ◽  
Omar Mohamed Omar Ibrahim ◽  
Nour Bassim Frahat ◽  
Mohamed Amin
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials ◽  
Sustainable Buildings ◽  
New Techniques

scholarly journals A Review of Germanium-Antimony-Telluride Phase Change Materials for Non-Volatile Memories and Optical Modulators

2019 ◽  
Vol 9 (3) ◽  
pp. 530 ◽  
Author(s):  
Pengfei Guo ◽  
Andrew Sarangan ◽  
Imad Agha
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Beam Steering ◽  
Light Modulation ◽  
Optical Modulators ◽  
Reversible Phase Transition ◽  
Non Volatile Memory ◽  
Germanium Antimony Telluride ◽  
New Applications ◽  
High Degree

Chalcogenide phase change materials based on germanium-antimony-tellurides (GST-PCMs) have shown outstanding properties in non-volatile memory (NVM) technologies due to their high write and read speeds, reversible phase transition, high degree of scalability, low power consumption, good data retention, and multi-level storage capability. However, GST-based PCMs have shown recent promise in other domains, such as in spatial light modulation, beam steering, and neuromorphic computing. This paper reviews the progress in GST-based PCMs and methods for improving the performance within the context of new applications that have come to light in recent years.

scholarly journals Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

2021 ◽  
Vol 1 (1) ◽  
pp. 7-14
Author(s):  
Qudama M. Q. Al-Yasiri ◽  
Márta Szabó
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials ◽  
Renewable Energy Sources ◽  
Building Energy ◽  
Building Envelope ◽  
Cold Climates ◽  
Building Energy Saving ◽  
Energy Storage Applications ◽  
Heating Loads

Phase change materials (PCMs) are increasingly investigated in the last years as successful in many thermal energy storage applications. In the building sector, PCMs are utilised to improve building efficiency by reducing cooling/heating loads and promoting renewable energy sources, such as solar energy. This paper shows the recent research works on integrating PCMs with building envelope for heating purposes. The main PCM categories and their main characteristics are presented, focusing on PCM types applied for building heating applications. The main methods adopted to incorporate PCMs with building elements and materials are mentioned, and the popular passive and active incorporation techniques are discussed. Lastly, the main contribution to building energy saving is discussed in terms of heating applications. The analysed studies indicated that all PCMs could improve the building energy saving in the cold climates by up to 44.16% regardless of their types and techniques. Several conclusions and recommendations are derived from the analysed studies that are believed to be a guideline for further research.

Phase-Change Materials and Building Energy Saving

2013 ◽  
Vol 683 ◽  
pp. 106-109
Author(s):  
Xiao Gang Zhao ◽  
Ying Pan
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Material ◽  
Building Materials ◽  
Phase Change Materials ◽  
Heat Storage ◽  
Building Energy ◽  
Storage Performance ◽  
Building Energy Saving ◽  
Change Material

Phase change materials, abbreviated as PCM, due to the excellent heat storage performance, have been used as building materials and got more and more attention in recent years. The article introduce the building application of phase change material, and discuss its contribution to the building energy saving.

Study of Energy Saving in a Greek Building Using Phase Change Materials

2010 ◽  
Author(s):  
Zacharias Gkouskos ◽  
George Limnaios ◽  
Luisa F. Cabeza ◽  
Theocharis Tsoutsos
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials
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