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Multiple-effect evaporator
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<h2 id="types">Types</h2> <h3>Forward feed</h3> <p>In forward feed the condensate and the feed-concentrate move in the same direction. In this case the vacuum pressure can be sufficient to pull the feed through the system.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> </p> <h3>Backward feed</h3> <p>Here the concentrate flows in the opposite direction to the condensate. Pumps are required between stages, however the design has less heating costs. </p> <h3>Parallel feed</h3> <p>In the simplest version of this design the feed goes to each stage. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Evaporator_(marine)/XEsGQnpr">Marine use of compound evaporators</a></li> <li><a href="/facts/Multi-stage_flash_distillation/NonlEIAk">Multi-stage flash distillation</a></li> <li><a href="/facts/Multi-effect_distillation/plDvUMxn">Multi-effect distillation</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://www.yasa.ltd/post/multiple-effect-evaporator-forward-feed-backward-feed-parallel-feed-for-multi-effect-evaporation">YASA introduction to multiple effect evaporators</a></li> <li>Wilson.W (2024):<a href="https://zigongpumps.com/what-is-multi-effect-evaporator/">The working principle of multi effect evaporators in chemical industry.</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>R. L. Earle. "Unit Operations in Food Processing". Archived from the original on 8 October 2008. Retrieved 23 July 2008. <a href="https://web.archive.org/web/20081008030448/http://www.nzifst.org.nz/unitoperations/evaporation2.htm" target="_blank">https://web.archive.org/web/20081008030448/http://www.nzifst.org.nz/unitoperations/evaporation2.htm</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>ET, YASA (23 March 2023). "Multiple Effect Evaporator: Forward Feed, Backward Feed, Parallel Feed for Multi-Effect Evaporation". YASA ET. Retrieved 11 November 2024. <a href="https://www.yasa.ltd/post/multiple-effect-evaporator-forward-feed-backward-feed-parallel-feed-for-multi-effect-evaporation" target="_blank">https://www.yasa.ltd/post/multiple-effect-evaporator-forward-feed-backward-feed-parallel-feed-for-multi-effect-evaporation</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> </ol>