نوع مقاله : مقاله پژوهشی لاتین

نویسندگان

1 آزاد اسلامی شوشتر

2 دانشگاه بوعلی سینا، همدان

چکیده

در این تحقیق بررسی تجربی و مدل‌سازی انتقال جرم در طی خشک کردن مادون قرمز به مورد مطالعه قرار گرفت. در بخش تجربی، اثرات شرایط مختلف خشک کردن مانند توان پرتودهی مادن قرمز (W 375-150) و فاصله منبع مادون قرمز (cm 15-5) بر روی ویژگی‌های خشک کردن به مورد ارزیابی قرار گرفت. هر دو عامل توان پرتودهی و فاصله بر روی زمان خشک کردن قطعات به تأثیرگذار بودند. نسبت‌های رطوبت بر روی 8 مدل ریاضی مختلف با استفاده از آنالیز رگرسیون غیرخطی برازانده شد. نتایج رگرسیون نشان داد که مدل رگرسیونی به شکل رضایت‌بخشی رفتار خشک کردن را توصیف می‌کند. ضریب انتشار رطوبت مؤثر با افزایش توان در دامنه 15/1 تا m2/s 8-10 ×72/3 افزایش یافت. افزاش توان مادن قرمز اثر منفی بر روی ΔE داشته و با افزایش توان پرتو دهی مقدار آن کاهش یافت. مقادیر کروما و هیو به‌ترتیب در دامنه‌های 8/43 تا 99/46 و °82/80 تا °14/86 قرار داشت.

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