بررسی ترکیب زیست‌توده‌های باگاس نیشکر و کاه برنج با مواد پیونددهنده‌ طبیعی بر خصوصیات مکانیکی و حرارتی پلت‌های سوختی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مکانیک بیوسیستم، دانشگاه علوم کشاورزی و منابع طبیعی ساری

2 دانشگاه کشاورزی و منابع طبیعی ساری

3 مهندسی بیوسیستم، دانشگاه علوم کشاورزی و منابع طبیعی ساری

چکیده

یکی از منابع مهم انرژی‌های تجدیدپذیر زیست­توده­ها هستند که جایگزین مناسبی برای سوخت­های فسیلی به‌شمار می­روند. پلت­های سوختی یکی از موارد استفاده از انرژی زیست­توده­ها هستند که از پسماند کشاورزی، بقایای گیاهان و فضولات حیوانات ساخته شده و سبب تولید انرژی بیشتر در واحد حجم می­شوند. در این پژوهش، اثر نسبت­های مختلف دو نوع زیست­توده کاه برنج و باگاس نیشکر (25­%، 50­%، 75­% و 100­%) و ترکیب آن­ها با پیونددهنده­های طبیعی (کندر، صمغ عربی، سریش) در سه سطح (5­% ، 10­% ، 15­%)، بر چگالی، مقاومت شکست، پایداری و ارزش حرارتی پلت­های سوختی ساخته شده، مورد تحلیل و بررسی قرار گرفت. نتایج مقایسه میانگین داده­ها نشان داد که بهترین تیمار انتخاب شده به‌منظور ساخت پلت سوختی، ترکیبی از باگاس نیشکر و کاه برنج با نسبت ترکیب 75­% باگاس نیشکر و 25­% کاه برنج است که این تیمار در ترکیب با پیونددهنده طبیعی کندر در سطح 15­% دارای بالاترین میزان مقاومت شکست، پایداری و ارزش حرارتی است.

کلیدواژه‌ها


عنوان مقاله [English]

Investigating the Composition of Sugarcane Bagasse and Rice Straw Biomass with Natural Binders on the Mechanical and Thermal Properties of Fuel Pellets

نویسندگان [English]

  • Hossein Sadeghi 1
  • Reza Tabatabaeekoloor 2
  • Ali Motevali 3
1 Biosystem Engineering, SANRU
3 Biosystem Engineering, SANRU
چکیده [English]

Biomasses are one of the major sources of renewable energy and suitable alternatives to fossil fuels. An application for biomass energy is fuel pellets which are made from agricultural waste, plant residues and manure, are compacted and contain higher energy per unit of volume. In this research, different proportions of pellets were prepared from two types of rice straw biomass and sugarcane bagasse (25%, 50%, 75% and 100%) and their combination with natural binders (frankincense, Arabic gum, eremurus) at three levels (5%, 10%, 15%). The effect of these variables were investigated on the density, fracture resistance, stability and calorific value of the manufactured fuel pellets. The comparison of results means showed that the optimum proportion for fuel pellet production is a combination of 75% sugarcane bagasse and 25% rice straw, which combined with the frankincense natural binder. This proportion has the highest failure strength, durability, and heating value at 15% binder level.

کلیدواژه‌ها [English]

  • Fuel pellets
  • natural binders
  • biomass
  • heating value
  • strength failure
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