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Thermal conductivity of ammonia + lithium nitrate and ammonia + lithium nitrate + water solutions over a wide range of concentrations and temperatures.

Author(s) : CUENCA Y., SALAVERA D., VERNET A., et al.

Type of article: Article, IJR article

Summary

The thermal conductivity of NH3 + LiNO3 and NH3 + LiNO3 + H2O mixtures with an ammonia mass fraction between 0.3 and 0.6 was measured at temperatures from 303.15 K to 353.15 K at 1.5 MPa, using a relative transient hot wire apparatus. The apparatus and method were validated by comparing the measured values of the thermal conductivity of pure water, toluene, dimethyl phthalate, ethylene glycol and water + lithium nitrate with published values. Uncertainty in the measurements was estimated to be less than 0.025 W m-1 K-1. The measured NH3 + LiNO3 thermal conductivity was compared with the literature, showing significant differences. Finally, the experimental data was fitted with a comprehensive model based on the local composition concept.

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Pages: 333-340

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Details

  • Original title: Thermal conductivity of ammonia + lithium nitrate and ammonia + lithium nitrate + water solutions over a wide range of concentrations and temperatures.
  • Record ID : 30010377
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 38
  • Publication date: 2014/02

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