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http://dx.doi.org/10.9713/kcer.2018.56.4.555

Effect of Moisture on the Melting Point and High-Temperature Stability of NaKZn-Chloride  

Lee, Jeong Hwan (Department of Plant System and Machinery, University of science and Technology)
Kim, Young (Department of Plant System and Machinery, University of science and Technology)
Yoon, Seok Ho (Department of Plant System and Machinery, University of science and Technology)
Lee, Kong Hoon (Department of Thermal Systems, Korea Institute of Machinery and Materials)
Choi, Jun Seok (Department of Thermal Systems, Korea Institute of Machinery and Materials)
Publication Information
Korean Chemical Engineering Research / v.56, no.4, 2018 , pp. 555-560 More about this Journal
Abstract
The high temperature stability of a chloride mixture, $NaCl-KCl-ZnCl_2$ (NaKZn-Chloride), is investigated to evaluate its potential as a thermal storage material. A thermal storage media should maintain a stable thermal properties within the temperature range of heat storage. Results from an a priori experiment showed that the NaKZn-chloride is stable only up the much lower temperature, while its stability limit is reported to be $850^{\circ}C$ in the literature. This study aims to investigate if the thermal property is changed by the moisture absorbed in the heat storage material. The effect of moisture content on the thermal properties was measured. The results show that the melting point remains the same regardless of the amount of moisture absorbed. Meanwhile, the high temperature stability is lower for the moisture treated samples. The results of this work infer that the loss of a hygroscopic thermal storage media can be reduced by avoiding its contacts to moisture in designing high temperature thermal storage systems.
Keywords
Molten salt; NaKZn-chloride; Hygroscopicity; Stability limit; Thermal property;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Cho, Y. Z., Yan, H.-C., Lee, H.-S. and Kim, I.-T., "Characteristic of Oxidation Reaction of Lanthanide Chlorides in Oxygen-Eutectic Salt Bubble Column," Korean Chem. Eng. Res., 47(4), 465-469(2009).
2 You, H. Y., Jeong, S. M. and Kim, J. -G., "Electrochemical Behavior of $Mg^{2+}$ Ions in $MgCl_2-CaCl_2$-NaCl Molten Dalt," Korean Chem. Eng. Res., 50(6), 939-944(2012).   DOI
3 Andika, R., Kim, Y., Yoon, S. H., Kim, D. H., Choi, J. S. and Lee, M., "Techno-economic Assessment of Technological Improvements in Thermal Energy Storage of Concentrated Solar Power," Solar Energy, 157, 552-558(2017).   DOI
4 Raade, J. and Padowitz, D., "Inorganic Salt Heat Transfer Fluid," US20120056125A1, Halotechnics Inc. (2012).
5 Raade, J., Vaughn, J. and Elkin, B., "Thermal Energy Storage with Molten Salt," US20130180520A1, Halotechnics Inc. (2013).
6 Manga, V. R., Swinteck, N., Bringuier, S., Lucas, P., Deymier, P. and Muralidharan, K., "Interplay between Structure and Trans- port Properties of Molten Salt Mixtures of $ZnCl_2$-NaCl-KCl: A Molecular Dynamics Study," J. Chem. Phys., 144, 094501(2016).   DOI
7 Yang, Z. and Garimella, S. V., "Thermal Analysis of Solar Thermal Energy Storage in a Molten-salt Thermocline," Solar Energy, 84, 974-985(2010).   DOI
8 Li, P. W., Gervasio, D., Lucas, P., Muralidharan, K., Chan, C. L., Hao, Q., Momayez, M., Kannan, A. M., Jeter, S. and Teja, A., "Halide and Oxy-halide Eutectic Systems for High Performance High Temperature Heat Transfer Fluids," SunShot Concentrating Solar Power Program Review(2013).
9 Vlasveld, D. P. N., Groenewold, J., Bersee, H. E. N. and Picken, S. J., "Moisture Absorption in Polyamide-6 Silicate Nanocomposites and its Influence on the Mechanical Properties," Polymer, 46, 12567-12576(2005).   DOI
10 Yu, Y. J., Hearon, K., Wilson, T. S and Maitland, D. J, "The Effect of Moisture Absorption on the Physical Properties of Polyurethane Shape Memory Polymer Foams," Smart Mater. Struct., 20, 085010(2011).   DOI
11 Roos, Y. and Karel, M., "Differential Scanning Calorimetry Study of Phase Transitions Affecting the Quality of Dehydrated Materials," Biotechnol. Prog., 6, 159-163(1990).   DOI
12 Meng, X., Busserolles, K. B., Husson, P. and Andanson, J. M., "Impact of Water on the Melting Temperature of Urea + Chlorine Chloride Deep Eutectic Solvent," New J. Chem., 40, 4492(2016).   DOI
13 Omaran, S., Heggs, P. and Ding, Y., "The Influence of Moisture Content on the Evaluation of Latent Heat of Molten Salts Used for Thermal Energy Storage Application," Energy Procedia, 46, 317-323(2014).   DOI
14 AlQaydi, M. S., Delclos, T., AlMheiri, S., McKrell, T. and Calvet, N., "Effect of Sand and Moisture on Molten Salt Properties for Open Direct Absorption Solar Receiver/Storage System," American Institute of Physics, 1734, 050002(2016).
15 Daejung Chemicals & Metals Co., Ltd., http://www.daejungchem.co.kr/main/main.asp.
16 Moezzi, A., Cortie, M. and McDonagh, A., "Transformation of Zinc Hydroxide Chloride Monohydrate to Crystalline Zinc Oxide," Dalton Trans., 45, 7385(2016).   DOI
17 Kozawa, T., Onda, A., Yanagisawa, K., Masuda, Y. and Kishi, A., "Effect of Water Vapor on the Thermal Decomposition Process of Zinc Hydroxide Chloride and Crystal Growth of Zinc Oxide," J. Solid State Chem., 184, 589-596(2011).   DOI
18 Tanaka, H. and Fujioka, A., "Influence of Thermal Treatment on the Structure and Adsorption Properties of Layered Zinc Hydroxychloride," Materials Research Bulletin., 45, 46-51(2010).   DOI
19 Martinez, O. G., Vila, E., Vidales, J. L. M. D., Rojas, R. M. and Petrov, K., "On the Thermal Decomposition of the Zinc (II) Hydroxide Chlorides $Zn_5(OH)_8Cl_2{\cdot}H_2O$ and ${\beta}$-Zn(OH)Cl," J. Mater. Sci., 29, 5429-5434(1994).   DOI
20 Srivastava, O. K. and Secco, E.A., "Studies on Metal Hydroxyl Compounds. I. Thermal Analysis of Zinc Derivatives ${\varepsilon}-Zn(OH)_2$, $Zn_5(OH)_8Cl_2{\cdot}H_2O$, ${\beta}$-Zn(OH)Cl and ZnOHF," Can. J. Chem., 45, 579(1967).   DOI
21 Son, S. H. and Tsukihashi, F., "Vapor Pressure Measurement of Zinc Oxychloride," J. Phys. Chem. Solids, 66, 392-395(2005).   DOI
22 Wei, X. Q., Li, Q. H., Li, H. C., Li, H. J. and Chen, S. X., "The Use of $ZnCl_2$ Activation to Prepare Low-cost Porous Carbons Coated on Glass Fibers Using Mixtures of Novolac, Polyethylene Glycol and Furfural as Carbon Precursors," New Carbon Materials, 60(6), 579-586(2015).
23 Shin, J. S., Cho, S. J., Choi, S. H. et al., "A Simulation Study of Inter Heat Exchanger Process in SI Cycle Process for Hydrogen Production," Korean Chem. Eng. Res., 52(4), 459-466(2014).   DOI
24 Hasnain, S. M., "Review on Sustainable Thermal Energy Storage Technologies, Part 1: Heat Storage Materials and Techniques," Energy Convers. Mgmt., 39(11), 1127-1138(1998).   DOI
25 Lee, M. H., Song, Y. S., Rhee, Y. W. and Oh, I. H., "Optimization of $CH_3COONa{_}3H_2O$-based PCM for Latent Heat Storage System," HWAHAK KONGHAK, 38(3), 429-433(2000).
26 Nju, X., Yu, J. and Wang, S., "Experimental Study on Low-temperature Waste Heat Thermoelectric Generator," J. Power Sources., 188, 621-626(2009).   DOI
27 Velraj, R., Seenjraj, R. V., Hafner, B., Faber, C. and Schwarzer, K., "Heat Transfer Enhancement in a Latent Heat Storage System," Solar Energy, 65(3), 171-180(1999).   DOI
28 Mettawee, E. B. S. and Assass, G. M. R., "Thermal Conductivity Enhancement in a Latent Heat Storage System," Solar Energy, 81, 839-845(2007).   DOI
29 Vignarroban, K., Xu, X., Arvay, A., Hsu, K. and Kannan A. M., "Heat Transfer Fluids for Concentrating Solar Power Systems - A Review," Applied Energy, 146, 383-396(2015).   DOI
30 Mao, A., Park, J. H., Han, G. Y., Seo, T. and Kang, Y., "Heat Transfer Characteristics of High Temperature Molten Salt for Storage of Thermal Energy," Korean J. Chem. Eng., 27(5), 1452-1457(2010).   DOI