[Liu, Chang; Li, Feng; Ma, Lai-Peng; Cheng, Hui-Ming] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.;Cheng, HM (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China;cheng@imr.ac.cn

Advanced Materials for Energy Storage

http://wrap.warwick.ac.uk/44841/1/WRAP_Tian_Review%20on%20thermal%20energy%20storage%20with%20phase%20change.pdf

Review on thermal energy storage with phase change materials (PCMs) in building applications

Phase change materials for thermal energy storage

In recent years the use of thermal energy storage with phase change materials has become a topic with a lot of interest within the research community, but also within architects and engineers. Many publications have appeared, and several books, but the information is disseminated and not very much organised. This paper shows a review of the latest publications on the use of phase change materials (PCM) in buildings. The paper compiles information about the requirements of the use of this technology, classification of materials, materials available and problems and possible solutions on the application of such materials in buildings.

Materials used as PCM in thermal energy storage in buildings: A review

https://uhra.herts.ac.uk/bitstream/handle/2299/11214/904970.pdf;sequence=2

A review of solar collectors and thermal energy storage in solar thermal applications

A review on phase change energy storage: materials and applications

A review on energy conservation in building applications with thermal storage by latent heat using phase change materials

This paper reports on recent research conducted on the use of phase change materials (PCM) for thermal comfort and peak load shifting. Its objective is to show theoretically and experimentally that PCM impregnated in building materials can provide thermal energy storage benefits. Paraffin (RT20) has been used as the PCM because of its desirable thermal and physical attributes including its melting temperature of 20–22°C, which is close to the human comfort temperature. The PCM was impregnated into gypsum wallboards to produce a significant thermal storage medium (PCMGW), which consists of 26%-wt PCM. This structure of the PCM-gypsum wallboard (PCMGW) was tested in-situ office size huts, specifically designed for this project. In parallel, a thermal building simulation code, using SUNREL software, was used to simulate the performance of the huts. Measured and simulated results in summer showed that the use of PCMGW effectively reduced diurnal daily fluctuations of indoor air temperatures and maintained the indoor temperature at the desired comfort level for a longer period of time. A major benefit of thermal energy storage in winter is to reduce electrical demand charges by limiting the need to run electrically operated heating devices during peak load periods. This study reveals that this application of PCM storage in buildings can lead to healthier interior spaces, and more efficient energy use in terms of demand charge reduction and use of favourable off-peak rates.

Use of Phase Change Materials for Thermal Comfort and Electrical Energy Peak Load Shifting: Experimental Investigations

A Review on Phase Change Energy Storage

This paper presents the results of phase changing material, RT20, impregnated up to 26%-wt into the gypsum wallboards to produce a significant thermal storage medium (PCMGW). A full-scale test facility using the PCMGW was monitored for two years, and was modeled using the thermal building simulation package, SUNREL, to evaluate the latent heat storage performance of the PCM treated wallboards. Measured and simulated results showed that the use of PCMGW met two needs: quick absorption of solar heat for use during off-sunshine hours and avoid overheating during sunshine hours. The PCMGWs effectively smoothed out diurnal daily fluctuations of indoor air temperatures on sunny days and, therefore, providing thermal comfort. Although the benefits of PCMGW were clearly demonstrated, it was necessary to optimize the melting point and quantity of the PCM and to highlight the importance of showing how many days the PCM could effectively minimize the indoor temperature fluctuation. In a 90-day period during summer, a PCM of with a melting range of 18 °C – 22 °C could be fully utilized for 39% and partially utilized for 55.5% of the summer days when there is either partial melting or partial freezing. There is no benefit for only 5.5% of the summer days when the PCM remains either in the solid or liquid state. These percentages show that the decision of using 26%-wt RT20 with the melting range of 18–22 °C is a practical and realistic one.

Amar M. Khudhair

Papers

A review on phase change energy storage: materials and applications

A review on energy conservation in building applications with thermal storage by latent heat using phase change materials

Use of Phase Change Materials for Thermal Comfort and Electrical Energy Peak Load Shifting: Experimental Investigations

A Review on Phase Change Energy Storage

Thermal Energy Storage in Buildings Using PCM: Computer Simulation