Mass exchanger, parallel plate

Stroeve and Kim (109) present a modeling study of parallel plate mass exchange devices with facilitated transport membranes. 

Parallel plate mass exchange devices with semi-permeable membranes have been studied in a number of separation techniques including hemodialysis, artificial oxygenation, gas separation, and heavy-metal ion separation C10-18% The accurate prediction of solute separation in these mass exchangers is desirable. For parallel-plate geometry, Grimsrud and Babb C5) and Colton et al. C ) developed series solutions to describe the mass transfer process. Kooljman CB) reviewed the analytical and numerical solutions available in the early 1970 s. Since that time, other... 

In this paper, we analyze mass transfer in a parallel-plate mass exchanger with reactive membranes. We consider the case of fully developed, one-dimensional laminar flow between two membranes. Equilibrium carrier-facilitated transport of the solute takes place in the membrane phase. The effect of the diffusion and reaction parameters of the carrier-facilitated system on solute separation is Investigated. 

The heat exchanger is divided into 3 computational cells in parallel-flow and counterflow types, and into 9 cells in crossflow type. The mass and heat balances of the cells are calculated by means of heat balance of a single plate [3,4]. The procedure of the calculation is similar to the case of the flue gas heat exchanger. The surface temperatures and air temperatures leaving the different types of heat exchangers are shown in Fig. 10. The pressure drop of the heat exchanger is calculated according to [5]. 

Microstructured plate heat exchangers are stacked arrangements with a multitude of parallel minichannels and high sur-face-to-volume ratios in the range of 200 m /m . The preferred construction material is stainless steel. Wet chemical etching, initially developed for silicon micromachining, is suited for mass... 

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