کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10390799 | 884700 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A dual representation for targeting process retrofit, application to a pulp and paper process
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کلمات کلیدی
CHPPinch analysis - آنالیز پینچProcess integration - ادغام فرایند Exergy analysis - تحلیل اگزرژیCombined Heat and Power - ترکیب گرما و قدرتCogeneration - تولید همزمان گرما و برق یا به اخنصار تولید همزمان معروف به CHPProcess retrofit - تکمیل فرآیندUtility system - سیستم سودمندComposite curves - منحنی کامپوزیتTargeting - هدف گذاریPulp and paper - پالپ و کاغذ
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A method for the analysis of process energy requirements has been used to identify in an early design stage the potential process retrofit measures in an integrated pulp and paper mill. The minimum energy requirements (MER) of the process were computed by means of a dual representation that segregates the thermodynamic requirement of the process from its technological implementation. Energy and exergy recovery opportunities have been examined to improve the integration of the utility system to the process. An MILP optimisation targeting method has been applied to identify the best energy conversion options and to optimise the production of combined heat and power (CHP). Replacing the steam injections to mixing tanks by heat exchangers would decrease the MER by 10%, and increase the combined production of heat and power by a factor 1.7. Improving the exergy efficiency of the paper drying technology would be more difficult to implement, but the results indicate that this could bring an additional 12% gain of electricity cogenerated with no change to the MER.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 25, Issue 7, May 2005, Pages 1067-1082
Journal: Applied Thermal Engineering - Volume 25, Issue 7, May 2005, Pages 1067-1082
نویسندگان
David Brown, François Maréchal, Jean Paris,