مدل‏سازی و ‏بهینه‏سازی عملکرد یک ماشین جدا‏کننده تخم کدوی آجیلی با استفاده از روش سطح پاسخ (RSM)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش آموخته کارشناسی ارشد، گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

2 گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

چکیده

جدا‏سازی یکی از فرآیند‏های مهم در عملیات پس از برداشت محصولات کشاورزی ‏می‏باشد. یافتن ‏‏روش‏هایی برای کاهش تلفات و جدا‏سازی بهتر ‏تخم کدو‏ از چالش‏های مهم در این زمینه است. هدف از تحقیق حاضر مدل­سازی و بهینه­سازی‌ عملکرد دستگاه جداکننده تخم کدوی آجیلی است. آزمایش­ها با استفاده از روش سطح پاسخ و طرح مرکب مرکزی انجام شدند. نتایج نشان داد پارامترهای قطر چرخ‏دنده محور در واحد جداکننده پوسته، عرض لاستیک‏های ساینده و سرعت دورانی محور توان‏دهی در سطح احتمال 1% و نرخ تغذیه در سطح احتمال 5% بر درصد افت و درصد تمیزی تخم کدو اثر معنی‏داری داشتند. مدل‌های رگرسیونی درجه دوم به منظور پیش­بینی متغیر­های پاسخ ارائه شد. مقادیر بهینه برای متغیر‏های زمان پس از برداشت، قطر چرخ‏دنده، عرض لاستیک‏های ساینده، نرخ تغذیه و سرعت محور توان‏دهی به ترتیب برابر با 3 روز، 184 ‏میلی‏متر، 9/12 ‏سانتی‏متر، 337/18 تن در ساعت و 450 دور در دقیقه به‏دست آمد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Modeling and Optimizing Performance of Pumpkin Seed Separator Machine Using Response Surface Methodology

نویسندگان [English]

  • Taher Hajizadeh 1
  • Samira Zareei 2
  • Jalal Khodaei 2
1 Department of Biosystem Engineering, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
2 Department of Biosystem Engineering, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
چکیده [English]

Separation is one of the important processes in harvesting agricultural products. Finding appropriate methods for improved separation of the seeds and reducing loss of the seeds in the separation devise are important challenges of this field. The aim of this research is to model and optimize performance of pumpkin seed separator machine. Experiments were conducted using response surface methodology and central composite design Results revealed that diameter of the separator shaft gear, width of the frictional belts and speed of the PTO shaft, at 1% probability level, and feed rate, at 5% probability level, have significant effects on seed loss percentage and purity of the seeds. Second-order regression models were presented for predicting response variables. Values of 3 days, 184 mm, 12.9 cm, 18.33 tons h-1 and 450 rpm were outlined as the optimum values of rest after harvest, gear diameter, width of the frictional belt, feed rate and speed of the PTO shaft, respectively.

کلیدواژه‌ها [English]

  • Grain loss
  • Machine capacity
  • Optimal level
  • Performance Evaluation
  • Separating

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مهندسی بیوسیستم ایران
دوره 49، شماره 4
اسفند 1397
صفحه 631-644

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سابقه مقاله

  • تاریخ دریافت: 16 دی 1396
  • تاریخ بازنگری: 15 اردیبهشت 1397
  • تاریخ پذیرش: 24 اردیبهشت 1397

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