کاربرد جداساز نیمه‌پیوسته دورانی در سیالات حوزه صنایع غذایی – مطالعه موردی جداسازی پالپ از سیال حاوی پکتین

نویسندگان
شفیع رحمتی 1
علیرضا مهدویان 2
1 1. دانشجوی کارشناسی ارشد، گروه مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران.
2 استادیار،گروه مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران
10.22034/FSCT.19.132.183
چکیده
باتوجه‌به اهمیت و گستردگی صنایع مرتبط با فراوری مواد غذایی در زندگی بشر و نقش کلیدی مادهٔ اولیه‌ای همانند پکتین در این صنعت، استفاده از روش‌های نوآورانه، بهینه‌ و کم‌هزینه‌تر استخراج این ماده می‌تواند حائز اهمیت باشد. یک سامانه جداساز دورانی نیمه‌پیوسته برای جداسازی پالپ از سیال حاوی پکتین در پژوهش حاضر بررسی شده است. در این تحقیق به ارزیابی فرایند جداسازی به کمک جداساز نیمه‌پیوسته با درنظرگرفتن سرعت دورانی، دبی ورودی سیال و زمان در روند جداسازی، بر راندمان (کیفیت جداسازی) و انرژی مصرفی در دبی‌های ml/min 60، 90 و 120 و پنج سطح سرعت دورانی rpm[1] 2000، 3000، 4000، ۵۰۰۰، ، ۶۰۰۰ و بازه‌های زمانی S 0-50، 51-100، 101-150، 151-200 و 201-250، باتوجه‌به انرژی مصرفی بهینه پرداخته شده است. محلول حاوی اسید به‌عنوان حلال پکتین و مقداری فیبر جامد معلق در سیال است که به‌منظور تولید پکتین ابتدا می‌بایست ذرات جامد آن جدا شود و از جداساز نیمه‌پیوسته در این مرحله بهره برد. طبق نتایج حاصل شده دبی ورودی ml/min 60 به علت زمان ماند بیشتر جهت جدایش بهتر، سرعت دورانی rpm 6000 به علت ایجاد بیشترین نیروی rcf و در نهایت بازه زمانیS 50-0 دارای بهترین کیفیت جداسازی بودند. با درنظرگرفتن زمان و انرژی مصرفی و با استفاده از روش سطح پاسخ RSM نقطه بهینه با بازدهی% 12/99 در شرایط سرعت دورانی rpm 3400 ، دبی ورودی ml/min120 و زمان S 50 ثانیه با مصرفW.h 48/6 مصرف انرژی، توسط رایانه معرفی شد که با آزمون 5 نقطه بهینه اول و با خطای% 6 درصد نقطه بهینه معرفی شده صحت سنجی شد.
کلیدواژه‌ها
پکتین
جداساز دورانی
جداسازی پیوسته
استخراج

موضوعات

عنوان مقاله English

Application of semi-continuous rotary separator in food industry fluids - a case study of pulp separation from fluid containing pectin

نویسندگان English

shafie rahmati 1
Alireza Mahdavian 2
1 Department of Biosystems Engineering, Tarbiat Modares University (TMU), Tehran, Iran.
2 Assistant Professor, Department of Biosystems Engineering, Tarbiat Modares University (TMU),
چکیده English

Considering the importance and extent of industries related to food processing in human life and the key role of a raw material such as pectin in this industry, the use of innovative, more optimal and less expensive methods of extracting this material can be important. A semi-continuous rotary separator system for separating pulp from fluid containing pectin has been investigated in the present study. In this research, to evaluate the separation process with the help of semi-continuous separator by considering the rotational speed, fluid input flow rate and time in the separation process, on the efficiency and energy consumption at flow rates of 60, 90 and 120 ml/min and five levels of rotational speed 2000, 3000, 4000, 5000, 6000, rpm and time intervals 0-50, 51-100, 101-150, 151-200 and 201-250 seconds, according to the optimal energy consumption. The solution contains acid as a solvent for pectin and some solid fiber suspended in the fluid, in order to produce pectin, its solid particles must be separated first and a semi-continuous separator is used in this step. According to the obtained results, the input flow rate of 60 ml/min due to the longer retention time for better separation, the rotational speed of 6000 rpm due to the creation of the greatest rcf force, and finally the time interval of 0-50 seconds had the best separation quality. By considering the time and energy consumption and using the RSM, the optimal point with an efficiency of 99.12% in the conditions of a rotational speed of 3400 rpm, an input flow rate of 120 ml/min and a time of 50 seconds with a consumption of 6.48 W hours of energy consumption, by computer it was validated by testing the first 5 optimal points and with an error of 6% of the introduced optimal point.

کلیدواژه‌ها English

Pectin
rotary separator
continuous separation
Extraction
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