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Correlations for Liquid and Vapour Dynamic Viscosities for Ammonia-Water Solution

Authors: Mumah SN, Akande HF, Mudi KY, Olaniyan IO, Samuel F

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Dynamic viscosity is a key thermodynamic property needed for the design and simulation of ammonia-water refrigeration systems. It is there important to generate correlations that accurately produce empirical or/and experimental values. In this paper, dynamics viscosity correlations were derived for pure ammonia and water for both the liquid and vapour solution for ammonia-water solutions and then applied in generating dynamic viscosity data. They were then compared with values generated from the procedure presented in the literature. For the liquid solution, the average percentage errors between correlation values and generated data are significantly low (±0.199% and ±0.129%) for the two temperature ranges considered in this paper. When the data generated by the correlation was compared with literature values, the average percentage error was determined to be ±2.457% for the liquid solution. For the vapour phase, comparing the generated data had an average percentage deviation of ±1.39%, while the percentage error of fit is ±0.00497%. Therefore, the correlations derived in this paper can be used to calculate the dynamic viscosity of ammonia-water solution for both the liquid and vapour solutions.

Affiliations: Department of Chemical Engineering, Kaduna Polytechnic, Kaduna, Kaduna State, Nigeria.
Keywords: Dynamic Viscosity, Vapour And Liquid, Ammonia-water System, Correlations, Deviations
Published date: 2021/12/30

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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Chemical Engineering Department, Faculty of Engineering, University of Benin, PMB 1154, Ugbowo, Benin City, Edo State, Nigeria.