The evaporation of water into air of different humidities and the inversion temperature phenomenon

Schwartze, Jörg; Bröcker, S.

doi:10.1016/s0017-9310(99)00249-5

Cited by 35 publications

(17 citation statements)

References 10 publications

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“…• According to Daltons law and by assuming the interface to be at thermodynamic equilibrium and the air-vapor mixture is an ideal gas mixture, the concentration of vapor can be evaluated by [ -The evaporation rate of species i, commonly used in the previous studies (Chow and Chung [9], Schwartze and Bröcker [10], Haji and Chow [14] and Debbissi et al [18]), is expressed as:…”

Section: Discussionmentioning

confidence: 99%

“…Chow and Chung [9] presented the first numerical studies of the evaporation of water into dry air and superheated steam for a laminar and turbulent forced convection over a flat plate. Schwartze and Bröker [10] carried out a theoretical study of the evaporation of water into its own vapor, air and a mixture air-vapor. They explain the existence of the inversion temperature by considering heat and mass transfer in the evaporation process.…”

Section: Introductionmentioning

confidence: 99%

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Evaporation of a thin binary liquid film by forced convection into air and superheated steam

2010

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This paper deals with a numerical analysis of the evaporation of a thin binary liquid film by forced convection inside a channel constituted by two plates. The first plate is externally insulated and wetted by a thin water ethylene glycol film while the second is dry and isothermal. The first part is concerned with the effects of inlet ambiance conditions and the liquid concentration of ethylene glycol on the distribution of the velocity, temperature, concentrations profiles and the axial variation of the evaporation rate. The second part is focused on the inversion temperature point of the evaporation of binary liquid film. Results show that the inversion temperature phenomenon for the evaporation of binary liquid mixture is observed for high liquid concentration of ethylene glycol. The present results show that in the inlet temperature range considered here, the inversion temperature does not exit for the evaporation of pure ethylene glycol.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaporation of a thin binary liquid film by forced convection into air and superheated steam

2010

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“…By the range of obtained inversion temperature is rather wide: from 140°C at a constant mass flow rate [4] up to 390°C at a constant volumetric flow rate of air-steam mix [5].…”

Section: Introductionmentioning

confidence: 97%

“…It was shown [3,5,6] that the flow rate value is insignificant for the inversion temperature. Schwartze and Brö cker [5] made analytic calculations for water evaporating on a vertical wet column into a turbulent boundary layer (for the cases of gas flow rate constant in mass and volume). The important result was that the inversion temperature at a constant mass flow rate (198.6°C) is very different from the value at a constant volumetric flow rate (390°C).…”

Section: Introductionmentioning

confidence: 99%

Finding the inversion temperature for water evaporation into an air–steam mixture

Volchkov

Leontiev

Makarova

2007

International Journal of Heat and Mass Transfer

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“…There are a few investigations and analyses into the parameters that influence the evaporation and condensation processes in water distillation systems. J. P. Schwartze and S. Bröcker [7] carried out some investigations on the evaporation of water at different air temperatures and humidities. P. K. Abdenacer and S. Nafila [8] set up a model to simulate the performance of a solar still using a simplified greenhouse effect.…”

Section: Introductionmentioning

confidence: 99%

Validation of Vapour / Water Production in a Thermoelectric Distillation System

Al‐Madhhachi¹,

Phillips²,

Min³

2017

World Congress on Mechanical, Chemical, and Material Engineering

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-In this study, mathematical calculations developed through water-vapour phase-change theory is used to interpret the processes involved in the fresh water production of a thermoelectric distillation system. The rate of water production depends on various parameters of vaporization phenomena such as water and vapour temperatures, pressure, specific volume, heat capacity and water-vapour surface area. The water-vapour surface area is constant 10 x 10 cm 2 , the initial depth of the sample water is 3 cm and the air occupies the 500 cm 3 volume inside the chamber. The volume and the mass of vapour and water at water-vapour interface are calculated through one hour of the system operation. The temperatures of the system components, humidity and water production of the thermoelectric distillation system are measured. As a result, an increase in the temperature of water and hot side of the thermoelectric module leads to an increase in the water production by increasing the vapour formation at atmospheric pressure. After one hour of system operation, the water production reaches 34.5 mL and the humidity inside the chamber increases from 51 % to 74 %. The results also show the distillation ratio is 11.5%. The mathematical calculations validate the experimental data with reasonable agreement.

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The evaporation of water into air of different humidities and the inversion temperature phenomenon

Cited by 35 publications

References 10 publications

Evaporation of a thin binary liquid film by forced convection into air and superheated steam

Evaporation of a thin binary liquid film by forced convection into air and superheated steam

Finding the inversion temperature for water evaporation into an air–steam mixture

Validation of Vapour / Water Production in a Thermoelectric Distillation System

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