The vapor pressure of ammonia + lithium nitrate water and mixtures was measured by a static method from (293.15 to 353.15) K in mass fractions ranging 0.2 0.6. experimental data were correlated with the temperature liquid-phase composition using an analytical polynomial equation. capability electrolyte nonrandom two liquid (E-NRTL) model predict vapor−liquid equilibrium (VLE) ternary mixture evaluated comparing predicted solutions. binary interaction parameters needed for prediction VLE...

The density, dynamic viscosity, and heat capacity of ammonia + lithium nitrate water mixtures were measured between (293.15 353.15) K at 1.8 MPa, using a vibrating-tube densimeter, piston-style viscosimeter, flux Calvet-type calorimeter, respectively. data correlated as function temperature composition simple polynomial equations. Kinematic viscosity binary ternary also determined.

Several thermophysical properties were experimentally measured for the ammonia + sodium thiocyanate mixtures at several temperatures: density from (269.4 to 350.9) K, dynamic viscosity (269.8 369.5) and isobaric heat capacity (304.17 364.15) all them a constant pressure of 3 MPa, vapor–liquid equilibria (253.1 393.1) K. All in range composition 0.35 0.90 mass fraction. The experimental techniques used vibrating-tube densimeter, piston-style viscometer, flux Calvet-type calorimeter, static...

Vapor−liquid equilibria of ammonia + water potassium hydroxide and sodium systems were measured by a static method from (293.15 to 353.15) K. The experimental vapor pressure data have been correlated with temperature mass percent concentration using an analytical polynomial equation.

The lithium bromide + iodide nitrate chloride (mole ratio 5:1:1:2) aqueous solution is a potential working fluid for air-cooled absorption chillers. Three important thermophysical properties were measured: solubility, heat capacity, and density. solubilities measured, in the temperature range (276.04 to 353.21) K, using visual polythermal calorimetric methods. Heat capacities measured of temperatures from (312.63 372.08) K total salt mass fraction (0.4953 0.6394). Liquid densities at 1.0 MPa...

Ammonia/lithium nitrate and ammonia/(lithium + water) have been proposed as suitable working pairs for absorption refrigeration systems driven by low-temperature heat sources. The use of water in the absorbent ternary mixture reduces viscosity binary increases affinity between refrigerant (ammonia) absorbent, which should a positive effect on process. In this paper, brief review thermodynamic transport properties available open literature NH3/LiNO3 NH3/(LiNO3 H2O) mixtures is presented, most...

Se presenta la estrategia seguida para selección de un líquido iónico, y su concentración, actuar como aditivo del par trabajo agua/bromuro litio en sistemas refrigeración bombas calor por absorción. Este ha mejorar solubilidad LiBr agua ampliar el intervalo estos las aplicaciones. Esta se basa análisis cantidad libre. Como resultado principal, cloruro 1,3-dimetilimidazolio con una composición 6 % masa absorbente mejora mezcla, sin afectar negativamente a capacidad absorción

Abstract In this work the applicability of four most commonly used viscosity mixing rules to [ionic liquid (IL)+molecular solvent (MS)] systems is assessed. More than one hundred (IL+MS) binary mixtures were selected from literature test proposed by 1) Hind (Hi), 2) Grunberg and Nissan (G–N), 3) Herric (He) 4) Katti Chaudhri (K–C). The analyses performed estimating average (absolute or relative) deviations, AADs ARDs, between available experimental data predicted ideal mixture values...

Ammonia + water sodium hydroxide and ammonia potassium mixtures were chosen as potential candidates for absorption chillers driven by low-temperature heat sources. Heat capacity density studied between (293.15 353.15) K at a constant pressure of 1.8 MPa these solutions using flux Calvet-type calorimeter vibrating-tube densimeter, respectively. Measured data well-correlated with temperature composition simple polynomial equations. The relative deviations the experimental calculated values in...

Abstract Compression/resorption refrigeration systems are similar to conventional vapor compression but using zeotropic mixtures with large boiling temperature difference, the refrigerant/absorbent used in absorption technology. A resorber and a desorber replace condenser evaporator, respectively. As saturation both change composition, there is gliding that can reduce irreversibility of heat transfer external sensible sink sources. Another advantage these they operate at lower pressures...

New simple and accurate correlations of the equilibrium properties solution enthalpies for NH3/H2O/alkaline hydroxide mixtures are presented use in modeling design absorption chillers a temperature range between 273.15 353.15 K. The used to calculate P−T−x diagrams show effect on liquid−vapor equilibrium. Finally, estimate improvement cycle performance when NH3/H2O containing NaOH instead conventional mixture. Results that addition can significantly decrease generator ammonia/water...