کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6679999 1428066 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative thermodynamic evaluation of bioethanol processing from wheat straw
ترجمه فارسی عنوان
ارزیابی ترمودینامیکی مقایسه ای از پردازش بیواتانول از کاه گندم
کلمات کلیدی
تولید بیواتانول، کاه گندم، سوخت های زیستی مخلوط می شود تجزیه و تحلیل ترمودینامیکی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The thermodynamic implications of different bioethanol production routes from wheat straw (a cellulosic co-product or 'waste' stream) have been evaluated. Comparative thermodynamic (energy and exergy) analysis gives rise to alternative insights into the relative performance of various process chains. Energy analysis of four different production paths were firstly analysed via the consideration of mechanical work, temperature changes and separating techniques. The Net Energy Value (NEV) of each production path or route was then evaluated, including the effect of system boundary expansion. In contrast, the thermodynamic property known as 'exergy' reflects the ability of undertake 'useful work', but does not represent well heating processes. Exergetic efficiencies were consequently obtained via chemical and physical exergy calculations, along with some of the electrical inputs to the different processes. The exergetic 'improvement potentials' of the process stages were then determined using the exergetic efficiencies and irreversibility values respectively. These estimates will enable industrialists and policy makers to take account of some of the ramifications of alternative bioethanol production routes in a low carbon future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 224, 15 August 2018, Pages 136-146
نویسندگان
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