کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10390460 884573 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exergy efficiency enhancement of MSF desalination by heat recovery from hot distillate water stages
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Exergy efficiency enhancement of MSF desalination by heat recovery from hot distillate water stages
چکیده انگلیسی
This detailed exergy analysis of a 3800 m3/h Multi-Stage Flash (MSF) desalination plant is based on the latest published thermodynamics properties of water and seawater. The parameters of the study were extracted from a validated model of MSF desalination using IPSEpro software. The results confirmed that the overall exergy efficiency of the unit is lower than would be desirable at only 5.8%. Exergy inputs were destroyed by 55%, 17%, 10%, 4.3%, and 14% respectively, in the heat recovery stages, brine heater, heat rejection stages, pumps and brine streams disposal. Moreover, the detail of the study showed that the lowest exergy destruction occurs in the first stage, increasing gradually in heat recovery stages and sharply in heat rejection stages. The study concludes that recovering the heat from the hot distillate water stages can improve unit exergy efficiency from its low 5.8% to a more economical 14%, with the hot water parameters suitable for powering other thermal systems such as absorption chiller and multi-effect desalination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 53, Issue 2, 2 May 2013, Pages 226-233
نویسندگان
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