کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7044976 1457088 2018 44 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on multi-effect distillation of seawater with low-grade heat utilization of thermal power generating unit
ترجمه فارسی عنوان
مطالعه تقطیر چند اثر دریایی با استفاده از حرارت پایین درجه حرارت واحد تولید حرارتی
کلمات کلیدی
دیگ بخار قدرت، استفاده از درجه حرارت پایین، نمک زدایی دریایی، تقطیر چند اثر،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In order to reduce the energy consumption of low temperature multi-effect distillation (LT-MED), three schemes were proposed to utilize the low-grade heat of thermal power unit. The LT-MED system was combined with the thermal power unit by abolishing gas-gas heater (GGH) to recover the waste heat of flue gas and utilize the recirculating seawater of steam turbine condenser. Physico- mathematical models were established, with which the fresh water production performance of each scheme was investigated. Comparing with the reference six-effect TVC- MED system, the coal consumption rate of power generation dropped by 6.05 g/kWh for a 600 MW power generating unit, as well as thousand tons fresh water production could be obtained by using the flue gas as the heat resource of the first effect. Economic analysis results showed that reduce the amount of extraction steam from the turbine can significantly reduce water production cost. From the viewpoint of coal consumption rate, the combination of exhaust flue gas with the LT-MED system was better than that of heating condensed water. The gained output ratio (GOR) can be effectively enhanced up to 12.79.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 141, August 2018, Pages 589-599
نویسندگان
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