Investigation of Heat Transfer Characteristics and Electrical Conductivities in NaCl, KCl, and NaNO3 Solutions

Authors

  • Nigar Kantarci-Carsibasi Uskudar University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Istanbul, Turkey/ Uskudar University, Graduate School of Science, Chemical Engineering Program, Istanbul, Turkey
  • Jana Masalmah Uskudar University, Graduate School of Science, Chemical Engineering Program, Istanbul, Turkey
  • Ozlem Simsek Uskudar University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Istanbul, Turkey

DOI:

https://doi.org/10.46604/aiti.2024.14330

Keywords:

heat transfer coefficient, conductivity, sodium chloride (NaCl), potassium chloride (KCl), sodium nitrate (NaNO3)

Abstract

This study aims to optimize heat exchanger systems by investigating the effects of water-soluble salts (NaCl, KCl, and NaNO3) on heat transfer rates and electrical conductivity. Experiments are conducted using plate-type (PHE) and double-pipe (DPHE) heat exchangers. The heat transfer coefficient ranged from 1.5–6.5 kW/m²K in PHE and 3.5–20 kW/m²K in DPHE. NaCl achieves the highest heat transfer rates, followed by KCl and NaNO3, all outperforming pure water. Electrical conductivity peaks at 1 MHz, decreasing afterward, with NaCl and KCl showing higher conductivity than NaNO3. Conductivity increases with temperature, peaking at 70°C, and is more sensitive to temperature for KCl and NaCl. This dual-focus study correlates thermal and electrical properties, illustrating how variations in salt type, concentration, and temperature influence ion behavior, which plays a critical role in optimizing industrial heat transfer and electrical conductivity processes.

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Published

2025-04-30

How to Cite

[1]
Nigar Kantarci-Carsibasi, Jana Masalmah, and Ozlem Simsek, “Investigation of Heat Transfer Characteristics and Electrical Conductivities in NaCl, KCl, and NaNO3 Solutions”, Adv. technol. innov., vol. 10, no. 2, pp. 143–156, Apr. 2025.

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