Plate heat exchangers design

Most plate heat exchanger designs fall into the viscous flow range. Considering only Newtonian fluids since most chemical duties fall into this category, in laminar ducted flow the flow can be said to be one of three types ... 

Raju KSN, Bansal JC. Plate heat exchanger design. In Kaka et al., eds. Low-Reynolds-Number-Flow Heat Exchanger. Hemisphere, 1983 913-932. 

Additionally, highly efficient heat exchangers are required in fuel processors and the micro si rue lured plate heat exchanger design seems to be the best solution so far to maintain the crucial system efficiency competitive. 

R. K. Shah and A. S. Wanniarachchi, Plate Heat Exchanger Design Theory, in Industrial Heat Exchangers, J. M. Buchlin (ed.), Lecture Series N. 1991-04, von Karman Institute for Fluid Dynamics, Belgium, 1991. 

Ultimately, the oversized heat exchanger was replaced by one having an area of 54 (i.e. the plate heat exchanger designer s original suggestion). The alternative... 

From the APV heat-transfer handbook—Design Plate Heat Exchangers and J. Marriott s article, Where and How To Use Plate Heat Exchangers, Chemical Engineering, April 5, 1971, there are the following equations for plate heat transfer. 

Figure 10-7C. The patented COMPABLOG welded plate heat exchanger is technologically advanced, compact, and efficient. The fully welded design (but totally accessible on both sides) combines the best in performance, safety maintenance, and capital/maintenance costs. (Used by permission Vicarb Inc., Canada, publication VNT-3110 1997.)...

Fan, Y. N., How to Design Plate-Fin Exchnagers, Heat Exchanger Design Handbook, Gulf Publishing Company (1968) p. 59. 

Various designs of liquid/liquid heat exchanger are widely used. Choice is partly influenced by the cleanliness of the liquids and the need for regular cleaning. A compact and commonly used type is the plate heat exchanger. 

Higher overall heat transfer coefficients are obtained with the plate heat exchanger compared with a tubular for a similar loss of pressure because the shell side of a tubular exchanger is basically a poor design from a thermal point of view. Considerable pressure drop is used without much benefit in heat transfer efficiency. This is due to the turbulence in the separated region at the rear of the tube. Additionally, large areas of tubes even in a well-designed tubular unit are partially bypassed by liquid and low heat transfer areas are thus created. 

In the design of the plate heat exchanger, fouling due to coking is of no significance, since the unit cannot be used at such high temperatures. Corrosion is also irrelevant. 

Refrigeration is required for the cold storage rooms and to provide chilled water for the plate heat exchangers. The cellars are very wet areas, and the cooling plant should be designed to maintain as low a humidity as possible, to help preserve the building structure. 

It is not possible to give exact design methods for plate heat exchangers. They are proprietary designs, and will normally be specified in consultation with the manufacturers. Information on the performance of the various patterns of plate used is not generally... 

The transition from laminar to turbulent flow will normally occur at a Reynolds number of 100 to 400, depending on the plate design. With some designs, turbulence can be achieved at very low Reynolds numbers, which makes plate heat exchangers very suitable for use with viscous fluids. 

The trial design should be satisfactory, so a plate heat exchanger could be considered for this duty. 

COOPER, A. and Usher, J. D. (1983) Plate heat exchangers, in Heat Exchanger Design Handbook (Hemisphere Publishing). 

Gasketed plate heat exchangers are commonly used in food processing. What advantages does the design offer in such applications ... 

Plate design, in a reciprocating-plate column, 70 779 Plate diffusers, 26 163 Plate-fin heat exchangers, 73 263 Plate-frame heat exchangers, 73 263 Plate glass, elastic properties, 5 614t Plate heat exchangers, 70 157 73 263-265, 267... 

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