Thermal Performance Optimization of Shape Stabilized Phase Change Material Used in Building Envelopes

Abstract:

Integrating phase change materials (PCM) with building envelopes is an effective way to reduce the cooling or heating loads, improve indoor thermal comfort and save building energy consumptions. In this paper, the heat transfer model of building envelopes with shape stabilized PCM is established and the optimal phase change temperature and enthalpy of PCM for internal walls are determined. Moreover, different PCM locations in external walls are compared based on the evaluation index of integrated uncomfortable degree. The results shows that to improve indoor thermal comfort, it is preferable to put the PCM in the middle of external wall. It also indicates that the overall integrated uncomfortable degree in a whole year decreases with increasing thickness of the inserted shape stabilized PCM plate. This work is of great significance in guiding the optimization design of building envelopes with PCM for practical applications.

• Periodical: Key Engineering Materials (Volume 744)
• Pages: 201-206
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.744.201
• Online since: July 2017
• Authors: Yin Zhang, Ming Shan Zhang*
• Keywords: Building Wall, Optimization, Phase Change Material, Thermal Comfort

References

[1] P. E. Luis, O. Jose, P. Christine, A review on buildings energy consumption information, Energ. Build. 40 (2008) 394-398.

[2] L. Yang, J. C. Lam, J. P. Liu, Analysis of typical meteorological years in different climates of China, Energ. Con. Manag. 48 (2007) 654-668.

DOI: 10.1016/j.enconman.2006.05.016

[3] H. Asan, Y. S. Sancaktar, Effects of wall's thermophysical properties on time lag and decrement factor, Energ. Build. 28 (1998) 159-166.

DOI: 10.1016/s0378-7788(98)00007-3

[4] K. H. Lee, J. E. Braun, Model based demand limiting control of building thermal mass, Build. Env. 43 (2008) 1633-1646.

DOI: 10.1016/j.buildenv.2007.10.009

[5] R. A. Talyor, M. Miner, A metric for characterizing the effectiveness of thermal mass in building materials, Appl. Energ. 128 (2014) 156-163.

[6] R. Cheng, P. Pomianowski, X. Wang, et al. , A new method to determine thermal-physical properties of PCM-concrete brick, Appl. Energ. 112 (2013) 988-998.

DOI: 10.1016/j.apenergy.2013.01.046

[7] B. Zalba, J. M. Marin, L. F. Cabeza, et al. Review on thermal energy storage with phase change materials: heat transfer analysis and applications, Appl. Therm. Eng. 23 (2003) 251-283.

DOI: 10.1016/s1359-4311(02)00192-8

[8] A. Sharma, V. V. Tyagi, C. R. Chen, et al. Review on thermal energy storage with phase change materials and applications, Renew. Sus. Energ. Rev. 13 (2009) 318-345.

[9] F. Pitié, C. Y. Zhao, J. Baeyens, et al. Circulating fluidized bed heat recovery/storage and its potential to use coated phase-change-material (PCM) particles, Appl. Energ. 109 (2013) 505-513.

DOI: 10.1016/j.apenergy.2012.12.048

[10] Y. Zhang, X. Wang, Y. P. Zhang, et al. A simplified model to study the location impact of latent thermal energy storage in building cooling heating and power system, Energy 114 (2016) 885-894.

DOI: 10.1016/j.energy.2016.08.062

[11] W. Xiao, X. Wang, Y. P. Zhang, Analytical optimization of interior PCM for energy storage in a lightweight passive solar room, Appl. Energ. 86 (2009) 2013-(2018).

DOI: 10.1016/j.apenergy.2008.12.011

[12] P. Moreno, A. Caste, C. Sole, et al. PCM thermal energy storage tanks in heat pump system for space cooling, Energ. Build. 82 (2014) 399-405.

DOI: 10.1016/j.enbuild.2014.07.044

[13] H. L. Zhang, J. Baeyens, J. Degreve, et al. Latent heat storage with tubular encapsulated phase change materials (PCMs), Energy, 76 (2014) 66-72.

DOI: 10.1016/j.energy.2014.03.067

[14] G. B. Zhou, Y. P. Yang, H. Xu, Energy performance of a hybrid space cooling system in an office building using SSPCM thermal storage and night ventilation, Sol. Energ. 85 (2011) 477-485.

DOI: 10.1016/j.solener.2010.12.028

[15] A. Real, V. Garcia, L. Domenech, et al, Improvement of a heat pump based HVAC system with PCM thermal storage for cold accumulation and heat dissipation, Energ. Build. 83 (2014) 108-116.

DOI: 10.1016/j.enbuild.2014.04.029

[16] X. Wang, R. Cheng, R. L. Zeng, et al. Ideal thermal physical properties of building wall in an active room. Indoor Built Env. 23 (2014) 839-853.

DOI: 10.1177/1420326x13482319

[17] HVAC Design Criterion, Standard of PR China (GBJ 19-87), Beijing, 2001. (in Chinese).

[18] Y. Zhang, Y. P. Zhang, X. Wang, et al. Ideal thermal conductivity of a passive building wall: Determination method and understanding, Appl. Energ. 112 (2013) 967-974.

DOI: 10.1016/j.apenergy.2013.04.007

[19] R. L. Zeng, X. Wang, H. F. Di, et al. New concepts and approach for developing energy efficient buildings: ideal volumetric specific heat for building internal thermal mass, Energ. Buil. 43 (2011) 1081-1090.

DOI: 10.1016/j.enbuild.2010.08.035