کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
763209 | 896757 | 2009 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamic optimization for work-assisted heating and drying operations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We construct thermodynamic criteria for optimization of sequential work-assisted heating and drying operations which run jointly with 'endoreversible' thermal machines. The total power input is minimized with constraints which take into account the dynamics of heat and mass transport and rate of work consumption. Finite-rate, endoreversible models include the irreducible losses of classical exergy potential caused by the thermal resistances. Extremum performance functions for optimal work, which incorporate residual entropy production, are formulated in terms of end states, duration and (in discrete processes) number of stages. Formal analogies between entropy production expressions for work-assisted and conventional drying operations help formulate optimization models of the former. An optimization procedure for a two-stage drying operation with an endoreversible heat pump at each stage is outlined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 41, Issue 18, 1 December 2000, Pages 2009-2039
Journal: Energy Conversion and Management - Volume 41, Issue 18, 1 December 2000, Pages 2009-2039
نویسندگان
Stanislaw Sieniutycz,