طراحی، ساخت و بهینه‌سازی یک اجاق زیست‌توده سوز میکروگازیفایر جریان طبیعی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشآموخته کارشناسی ارشد، گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران

2 استادیار، گروه مهندسی بیوسیتم، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران

3 استاد، گروه مهندسی بیوسیتم، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران

چکیده

‏ در برنامه‌های توسعه‌ای بین‌المللی در زمینه بهبود تأمین انرژی پخت‌‌وپز مناطق دور که وابسته به هیزم هستند، اجاق‌های زیست‌توده‌سوز از جایگاه ویژه‌ای برخوردار هستند. اینگونه اجاقها بازده حرارتی حدوداً سه برابری نسبت به اجاقهای سنتی دارند. در این پژوهش، یک اجاق زیست­توده سوز میکروگازیفایرساخته شد و ارزیابی اجاق ساخته شده با استفاده از پروتکل آزمون آلایندگی و عملکرد انجام گرفت. طی این ارزیابی­ها توان حرارتی اجاق ساخته شده 4/1 کیلووات و زمان شعله‌دهی با 400 گرم پوست پسته 26 دقیقه بود. در ادامه، یک دریچه کنترل جریان‌‌هوای اولیه در راستای بهبود فرآیند احتراق بخارات پیرولیزی تعبیه شد و همچنین با استفاده از یک لایه سرامیکی، دیواره بیرونی میکروگازیفایر عایق‌‌بندی شد. نتایج نشان‌‌داد که بهینه‌‌سازی انجام شده باعث افزایش شاخص نسبت کنترل تا میزان سه برابر شده است. همچنین مدت زمان بهره‌‌دهی نیز به‌طور متوسط تا 57 درصد افزایش یافت و میزان انتشار مونواکسیدکربن نیز در محدوده‌‌ی مجاز ارزیابی شد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Design, Manufacture, and Optimization of a Micro-Gasifier Biomass Cook Stove

نویسندگان [English]

  • Mohammadreza Rasoulkhani 1
  • Mohammadali Ebrahimi-Nik 2
  • Mohammade Hossein Abbaspour-Fard 3
  • Abbas Rohani 2
1 MSc. of Recycling and Resources Management, Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
2 Assistant Professor, Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
3 Professor, Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
چکیده [English]

In international development programs on improvement of energy supply for cooking in remote regions, where people are dependent on wood as the sole fuel resource, biomass cook stoves have a remarkable place. The thermal efficiency of such stoves are up to 3 times of those of traditional open fire stoves. In this research, a biomass cook stove was manufactured and evaluated according to the emission and performance test protocol. The fire power of the stove was 1.4 kW, and flaming duration by feeding 400 g of pistachio shell was recorded to be 26 minutes. In order to improve the pyrolysis vapor combustion process, a damper was embedded in the stove, and also the outer wall of the stove was isolated by using a ceramic layer. Results showed that the control index was improved by three folds. Also, burning duration increased up to 57% and the emission of carbon monoxide was found to be in the permissible range.

کلیدواژه‌ها [English]

  • Biomass cook stove
  • Thermal efficiency
  • Optimization
  • carbon monoxide
  • Microgasifier
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