KIEAE Journal

Korea Institute of Ecological Architecture and Environment (한국생태환경건축학회)
권호 표지
DOI QR코드

DOI QR Code

Charateristics on the PCM absorbed porous media as thermal storage applicable for construction material

건자재활용을 위한 축열용 다공성 미립자 상변환 물질 흡착 특성

  • Lee, Hyo-Jin (Dept. of Building and Plant Engineering, Hanbat National Univ.)
  • Received : 2017.02.20
  • Accepted : 20170431
  • Published : 2017.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Purpose: Both silica gel and activated carbon black particles were adopted for use as PCM absorbed porous media applicable as construction materials. To investigate usable methods for absorbing PCM into the media, they were soaked into PCM and also tested for enhancement of PCM absorption into them. Method: To test PCM absorption into some porous media such as both ${\varphi}1{\sim}2mm$ and $10{\mu}m$ silica gels, and $50{\mu}m$ activated carbon black, $43^{\circ}C$ PCM was used as a laten heat material. The method, soaking into PCM was applied to this study, and the media were moderately rotated by centrifuge to have the extra PCM flow out. DSC analysis was conducted to investigate the melting and solidifying of the PCM absorbed into the porous media. Result: It was found that PCM was absorbed into the porous media by over 85 wt% of all particles. In addition, it was noted that the ultrasonic vibrator was accelerating the PCM absorption into the particles to three times higher speed than simple soaking. Centrifuge was adopted to remove extra PCM sticking on the particle surfaces and extra PCM was moderately removed from the surfaces of the particles. DSC analysis indicated that the latent heat of the absorbed PCM particles was 160 J/g, and the melting temperature was approximately $40^{\circ}C{\sim}50^{\circ}C$.

Keywords

References

  1. Shama, A, V.V., Chen, C.R., and Buddhi, B., Review on thermal energy storage with phase change materials and applications, Renerwable and Sustaintable Reviews, Vol. 15, 2009.
  2. Banu, D., Feldman, D., Hawes, D., Evaluation of thermal storage as latent heat in phase change material wallboard by differential scanning calorimetry and large scale thermal testing, Thermochimica Acta, Vol 317, 1998.
  3. Zhang, Y., Zhou, G., Lin, K., Zhang, Q., Di, Hongfa, Application of latent thermal energy storage in building: State-of-the-art and outlook, Building and environment, Vol 42, 2007.
  4. Peippo, K., Kauranen, P., Lund, P., Multicomponent PCM wall optimized for passive solar heating, Building and environment, Vol 17, 1991.
  5. 이효진, 이재구, "축열 물질로서의 MicroPCM에관한 특성연구", 설비공학회 논문집 제 13권 2호, 2001, // (Lee, Hyo-Jin. and Lee, Jae-Goo, "Experimental study on the microencapsulated phase change materials as a thermal storage medium", Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 13, No. 2, 2001)
  6. 이효진, 이승우, 이재구,"MicroPCM의 유체역학적 특성연구", 설비공학회 논문집, 제 11권 4호, 1999, // (Lee, Hyo-Jin and Lee, Sung-Woo, and Lee, Jae-Goo, "Fluid dynamical characteristics of the microencapsulated phase change materials", Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 11, No. 4, 1999)
  7. Inaba, H., Fujisaki, M., & Morita, A., Evaluation of thermophysical properties of fine latent heat storage and water mixture, the 16th Japan Symposium on Thermophysical Properties, Vol. 16, 1995,
  8. Tyagi, V. V. and Buddhi, D., PCM thermal storage in buildings: A state of art, Renewable & Sustainable Energy Reviews, Vol. 11, 2007.
  9. Shapiro, M., Feldman, D., Hawes, D., and Banu, D., PCM thermal storage in drywall using organic phase change material, Passive Solar J., Vol. 4, 1987.
  10. Bourzac, K., Meltings drywwall keeps rooms cool, MIT Technology Review, 2010.
  11. Rodriguez-Ubinas, E., Arranz, B., Vega Sanchez, S., and Gonzalez, Influence of the use of PCM drywall and the fenestration in building retrofitting, Energy and Buildings, Vol. 65, 2013.
  12. Shukla, N., Fallahi, A., and Kosney, J., Performance characterization of PCM impregnated gypsum board for building applications, Energy Procedia, Vol 30, 2012.
  13. Zhou, G., Zhang, Y., Wang, Z., Lin K., and Xiav, W., An assessment of mixed type PCM-gypsum and shape-stabilized PCM plates in a building for passive solar heating, Solar Energy, Vol. 81, 2007
  14. Shukla, N. Fallahi, A., & Kosny, J., Performance characterization of PCM impregnated gypsum board for building application, Energy Procedia, Vol 30, 2012.