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The influence of limescale formation on the performance of preliminary heat exchangers in distillation desalination plant
![Journal of IAR](/images/mag-vest.jpg)
Annotation
The article concerns the influence of limescale formation on the efficiency and lifetime of preliminary heaters in distillation desalination plant. The algorithm of checking calculation for plate-fin heat exchangers is presented, calculation dependencies for the distillation plant in question are shown. The plant in question is used for seawater desalination by consecutive evaporation and condensation of the working fluid in the stages of evaporator-condensers. The process takes place at decreased pressure to reduce the dimensions of preliminary heat exchangers. Preliminary heat exchangers operate in hazard media which causes limescale formation on the plants. Limesclae of 0.1 mm results in reducing the heating of incoming water by 15%. Limescale decrease heat transfer ratio by adding additional thermal resistance and increase working fluid hydraulic losses. The research results aimed at the development of more effective ways to prevent limescale formation on the plates of heat-exchangers.
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