با همکاری انجمن مهندسان مکانیک ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران

چکیده

در این مطالعه مصرف انرژی مستقیم در تولید تخته نئوپان از باگاس نیشکر و امکان جایگزینی آن با ضایعات کشت و صنعت نیشکر دعبل خزاعی و صنایع جانبی آن بررسی گردید. انرژی مستقیم مصرفی به ازای هر مترمکعب نئوپان تولیدی 5.829 گیگاژول محاسبه شد که گاز طبیعی، برق و سوخت دیزل به‌ترتیب 78.52، 18.87 و 2.61 درصد آن را تشکیل می‌دهند. پیت و خرده چوب‌های حاصل از ضایعات کارخانه نئوپان‌سازی، برگ و پوشال نیشکر، باگاس مازاد و ویناس حاصل از تولید الکل از ملاس نیشکر به‌عنوان ضایعات جهت تولید انرژی در نظر گرفته شدند. خاکستر، رطوبت، ارزش حرارتی خالص (با استفاده از بمب کالری‌متر) و مقدار ضایعات خشبی و همچنین پتانسیل تولید زیست‌گاز از تخمیر بی‌هوازی ویناس اندازه‌گیری و محاسبه شد. نتایج نشان داد با استفاده از پسماند خشبی کارخانه نئوپان‌سازی و کشت و صنعت دعبل خزاعی می‌توان 4.33 برابر کل انرژی گاز مصرفی در کارخانه نئوپان‌سازی انرژی حرارتی با بازده 60 درصد تولید کرد. همچنین با استفاده از ضایعات کارخانه نئوپان‌سازی و باگاس، می‌توان کل گاز و برق مصرفی کارخانه نئوپان‌سازی را جایگزین کرد. بررسی حجم ویناس و پتانسیل تولید زیست‌گاز از آن نشان داد پتانسیل تولید انرژی معادل ‌8824319 مترمکعب گاز طبیعی در سال وجود دارد.

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