کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4753047 1416468 2017 42 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of exergy analysis to the dairy industry: A case study of yogurt drink production plant
ترجمه فارسی عنوان
استفاده از تجزیه و تحلیل اگزرژی به صنعت لبنیات: مطالعه موردی کارخانه نوشیدنی ماست
کلمات کلیدی
تجزیه و تحلیل اگزرژی، میزان تخریب اگزرژ، ژنراتور بخار، تجمع بالاتر از صفر، پاستوریزاسیون شیر، کارخانه نوشیدنی ماست،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
This work was aimed at undertaking a detailed exergy analysis of an industrial-scale yogurt drink production plant using actual operational data. Exergy efficiency and exergy destruction rate of each subcomponent of four main subsystems of the plant, including steam generation, above-zero refrigeration, milk reception, pasteurization, and standardization, and yogurt drink production lines were derived independently. This analysis was performed to quantify thermodynamic inefficiencies of all subcomponents of the plant in order to identify the breakthrough points for further energy savings. An effort was also made to compute the quantity of exergy destruction in processing a given amount of pasteurized yogurt drink. The results indicated that the highest exergy destruction rate occurred in the boiler & compressor combination of steam generator, followed by ice-water tank & agitator combination in the above zero refrigeration system. The specific exergy destruction of pasteurized yogurt drink was determined as 442 kJ/kg according to the mass allocation method. The steam generator had the highest contribution to the specific exergy destruction of pasteurized yogurt drink, followed by yogurt drink production, above-zero refrigeration, and milk reception, pasteurization, and standardization lines, respectively. In general, the current survey can be an important step for future improvements of dairy processing plants from the sustainability and productivity viewpoints. This study clearly showed the effectiveness of exergy analysis for determining irreversibilities and losses occurring in dairy processing plants in order to improve their thermodynamic performances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 101, January 2017, Pages 118-131
نویسندگان
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