Results 211 to 220 of about 2,963 (263)

Surface evaporation of turbulent falling films

International Journal of Heat and Mass Transfer, 1991
Abstract In refrigeration and heat pump applications, falling film evaporators should be very attractive due to high heat transfer coefficients with negligible pressure drop. In this paper results from an experimental study with refrigerant R12 are reported.
Anders Åsblad, Thore Berntsson
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The falling film MSF evaporator

Desalination, 1976
Abstract The application of falling film heat transfer to the MSF cycle permits use of CO2 for scale prevention at no cost and the building of efficient very small capacity units with heating surfaces that are fully accessible during operation. It also becomes possible to use doubly fluted tubes for a 2 3 saving in heating surface requirements.
openaire   +1 more source

Falling film evaporation of binary mixtures

AIChE Journal, 1994
AbstractThe interactive effects of heat and mass transfer in evaporation of binary mixtures flowing as falling films on vertical surfaces was investigated. Evaporative heat‐transfer coefficients were measured for aqueous mixtures of ethylene and propylene glycol, with boiling ranges up to 55°C.
J. W. Palen, Qi Wang, J. C. Chen
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Falling Film Evaporation in a Rectangular Channel With Different Depth

10th International Conference on Nuclear Engineering, Volume 4, 2002
This paper describes the results of experimental tests carried out to study falling film evaporation on a heated flat plate with countercurrent air flowing in a rectangular channel. Experimental tests have been run with different channel depths with respect to a previous facility configuration in order to evaluate the effect of this parameter on the ...
FORGIONE, NICOLA, AMBROSINI, WALTER, ORIOLO, FRANCESCO, P. WACKERS   +3 more
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Evaporation of pure liquids with increased viscosity in a falling film evaporator

Heat and Mass Transfer, 2007
The present study investigated fluid dynamics and heat transfer of viscous pure liquids in a falling film evaporator. This is of special benefit as it avoids mass transfer effects on the evaporation behaviour. Experiments at a single-tube glass falling film evaporator were conducted.
Felix Weise, Stephan Scholl
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Alcohol recovery in falling film evaporators

Applied Thermal Engineering, 2002
Falling film evaporators can be used to recover alcohol and other volatile compounds from waste products, and as part of the primary production process. A simple model has been developed to predict the performance of the equipment. Measurements made on commercial installations have confirmed the validity of the model over a range of operating ...
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Numerical investigation on characteristics of falling film in horizontal-tube falling film evaporator

Desalination and Water Treatment, 2014
AbstractHorizontal-tube falling film technology is widely used in multi-effect desalination plant. The film characteristics of falling water film outside the tubes in horizontal-tube falling film evaporator were simulated. The numerical result was compared with the experimental result and they were proven with good agreement.
Qing-gang Qiu, Wei-guo Jiang, Sheng-qiang Shen, Xiao-jing Zhu, Xing-sen Mu   +4 more
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Calcium sulphate scaling in falling film evaporators

Desalination, 1974
Abstract The formation of calcium sulphate scale in Vertical Tube Evaporators (VTE) of the falling film type has been investigated in a single tube experiment using fluted tubes. It was found that the scaling threshold is dependent not only on the brine concentration and temperature, but also on the heat flux to the evaporating film.
T.D. Hodgson, M.N. Elliot, T.W.J. Jordan
openaire   +1 more source

Scale deposition from an evaporating falling film

Desalination, 1975
Abstract A study was made of the factors governing CaCO3 scale deposition from an evaporating falling film, on a heated aluminum tube. A kinetic model was developed describing scale layer growth. The results of this work provide a basic background enabling a more rational approach for conducting practical work related to the scaling problem.
E. Gazit, D. Hasson
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MICRO-evaporation in a falling film contactor

2010
Poster presentation - no abstract.
Moschou, P., Croon, de, M.H.J.M., Schaaf, van der, J., Schouten, J.C.   +3 more
openaire   +1 more source