مطالعه نظری و آزمایشگاهی گازی‌سازی اندام‌های هوایی سیب‌زمینی در گازی‌ساز بستر سیال و ثابت

Subject Areas : Farm Structures

مجتبی جاویدی قراچه ¹ , مهدی خجسته پور ² , محمدعلی ابراهیمی نیک ³ , ون ازلینا ون اب کریم قانی ⁴

1 - دانشجوی دکتری، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد، مشهد، ایران
2 - دانشیار، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد، مشهد، ایران
3 - استادیار، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد، مشهد، ایران
4 - دانشیار گروه مهندسی شیمی، دانشگاه پوترا مالزی، مالزی

Received: 2017-08-04 Accepted : 2018-08-28 Published : 2018-11-01

Keywords: مدلسازی, بالاسو, گازی‌ساز بستر ثابت, گازی‌ساز بستر سیال,

Abstract :

دستگاه گازی‌ساز بالاسو در مقیاس آزمایشگاهی به دو صورت بستر سیال و ثابت در سه حالت (بستر سیال با دو نسبت تعادل 2/0 و 25/0 و یک حالت با بستر ثابت) برای این تحقیق به کار گرفته شد. آزمایش در پنج دمای راکتور مختلف (650، 700، 750، 800 و °C850) انجام شد. برای به دست آوردن داده‌های مورد نیاز برای مدل تعادل ترمودینامیکی تحلیل تخمینی و نهایی روی اندام‌های هوایی سیب‌زمینی به عنوان خوراک دستگاه صورت گرفت. این مدل بر پایه دما است و نتایج متفاوتی برای دماهای مختلف ارائه می‌دهد. مدل نتیجه کاملاً دقیقی برای پیش‌بینی مقدار متان در نسبت تعادلی 25/0 ارائه داد. با در نظر گرفتن متوسط مقدار هر مؤلفه گازی در گاز خروجی کمترین خطا برای پیش‌بینی CO با خطای 7/0 درصد بود. با در نظر گرفتن نتایج آزمایشگاهی مدل نتایج بهتری برای پیش‌بینی مؤلفه‌های گازی در بستر سیال به خصوص در نسبت تعادلی 25/0 ارائه کرد. با توجه به خطای متوسط بهترین نتایج برای CO، N2 و CO2 به دست آمد. با افزایش دما مقادیر ارزش حرارتی حداکثر و راندمان تبدیل کربن افزایش یافت.

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