Energy and Exergy Analysis of a Multi-PCM Solar Storage System
DOI:
https://doi.org/10.37934/arfmts.78.1.6078Keywords:
Phase change material (PCM), Latent heat storage unit (LHSU), evacuated tube solar collector, exergy analysisAbstract
Latent heat storage using phase change materials (PCMs) is one of the most effective methods to store solar energy, and it can significantly reduce area for solar collectors. PCMs are isothermal in nature, and thus offer higher density energy storage and the ability to operate in a variable range of temperature conditions. In this paper, experimental study has been conducted to evaluate the effectiveness of the solar thermal storage system based on the energy and exergy analysis. Barium Hydroxide Octahydrate (BHO) and Sodium Acetate Trihydrate (SAT) were used as PCMs inside multi-capsule system arranged in series based on their melting temperatures. These two salts never being used together in a multi capsule solar storage system before. The capsules were charged by three water flow rates of 0.5 LPM, 1 LPM and 1.5 LPM that comes from a parabolic trough collector. The experimental results showed that the maximum energy and exergy storage of 139.38 kJ and 17.15 kJ, respectively were obtained from 1 LPM. In other hand, the maximum system energy and exergy efficiencies of 64.82 % and 14.99 %, respectively were obtained from the use of 1.5 LPM.
References
Garshasbi, Samira, and Mat Santamouris. "Using advanced thermochromic technologies in the built environment: Recent development and potential to decrease the energy consumption and fight urban overheating." Solar Energy Materials and Solar Cells 191 (2019): 21-32. https://doi.org/10.1016/j.solmat.2018.10.023
Zeyghami, Mehdi, D. Yogi Goswami, and Elias Stefanakos. "A review of clear sky radiative cooling developments and applications in renewable power systems and passive building cooling." Solar Energy Materials and Solar Cells 178 (2018): 115-128. https://doi.org/10.1016/j.solmat.2018.01.015
Pielichowska, Kinga, and Krzysztof Pielichowski. "Phase change materials for thermal energy storage." Progress in materials science 65 (2014): 67-123. https://doi.org/10.1016/j.pmatsci.2014.03.005
Sarbu, I., and C. Sebarchievici. "Chapter 7-Solar Thermal-Driven Cooling Systems." Solar Heating and Cooling Systems (2017): 241-313. https://doi.org/10.1016/B978-0-12-811662-3.00007-4
Salunkhe, Pramod & Devanuri, Jaya Krishna. (2017). Investigations on latent heat storage materials for solar water and space heating applications. Journal of Energy Storage. 12. 243-260. https://doi.org/10.1016/j.est.2017.05.008
Englmair, Gerald, Christoph Moser, Hermann Schranzhofer, Jianhua Fan, and Simon Furbo. "A solar combi-system utilizing stable supercooling of sodium acetate trihydrate for heat storage: Numerical performance investigation." Applied Energy 242 (2019): 1108-1120. https://doi.org/10.1016/j.applthermaleng.2019.114647
Wang, Qian, Jiangtao Wang, Yunyu Chen, and C. Y. Zhao. "Experimental investigation of barium hydroxide octahydrate as latent heat storage materials." Solar Energy 177 (2019): 99-107. https://doi.org/10.1016/j.solener.2018.11.013
Elfeky, K. E., N. Ahmed, and Qiuwang Wang. "Numerical comparison between single PCM and multi-stage PCM based high temperature thermal energy storage for CSP tower plants." Applied Thermal Engineering 139 (2018): 609-622. https://doi.org/10.1016/j.applthermaleng.2018.04.122
Thomson, A., and Gianfranco Claudio. "The Technical and Economic Feasibility of Utilising Phase Change Materials for Thermal Storage in District Heating Networks." Energy Procedia 159 (2019): 442-447. https://doi.org/10.1016/j.egypro.2018.12.042
Suffer, Kadhim Hussein, Jalal M. Jalil, and Hiba A. Hasan. "Numerical Investigation of PCM Thermal Storage in Water Solar Collector." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 66 (2020): 164-178. https://doi.org/10.1016/j.ast.2012.02.006
Bayomy, Ayman, Stephen Davies, and Ziad Saghir. "Domestic Hot Water Storage Tank Utilizing Phase Change Materials (PCMs): Numerical Approach." Energies 12, no. 11 (2019): 2170. https://doi.org/10.3390/en12112170
Nagappan, Beemkumar, Karthikeyan Alagu, Yuvarajan Devarajan, and Dinesh Babu Munuswamy. "Energy and exergy analysis of multi-temperature PCMs employed in a latent heat storage system and parabolic trough collector." Journal of Non-Equilibrium Thermodynamics 43, no. 3 (2018): 211-220. https://doi.org/10.1515/jnet-2017-0066
Li, Bin, Xiaoqiang Zhai, and Xiwen Cheng. "Experimental and numerical investigation of a solar collector/storage system with composite phase change materials." Solar Energy 164 (2018): 65-76. https://doi.org/10.1016/j.solener.2018.02.031
Hosseininasab, Seyedalireza, and Ebrahim Nemati Lay. "Critical Modeling & Exergy Analysis of Multi Phase Change Materials Storage System." Chemical Product and Process Modeling 13, no. 1 (2017). https://doi.org/10.1515/cppm-2017-0029
Dannemand, Mark, Weiqiang Kong, Jakob B. Johansen, and Simon Furbo. "Laboratory test of a cylindrical heat storage module with water and sodium acetate trihydrate." Energy Procedia 91 (2016): 122-127. https://doi.org/10.1016/j.egypro.2016.06.186
Huang, Huajie, Zilong Wang, Hua Zhang, Binlin Dou, Xiuhui Huang, Hao Liang, and Maria A. Goula. "An experimental investigation on thermal stratification characteristics with PCMs in solar water tank." Solar Energy 177 (2019): 8-21. https://doi.org/10.1016/j.solener.2018.11.004
Yang, Lei, Xiaosong Zhang, and Guoying Xu. "Thermal performance of a solar storage packed bed using spherical capsules filled with PCM having different melting points." Energy and buildings 68 (2014): 639-646. https://doi.org/10.1016/j.enbuild.2013.09.045
