Mathematical model of thin layer drying of purple yam by infrared assisted heat pump drying

• Autorzy: Duc Le Anh , Hay Nguyen , Kien Pham Van , Tan Nguyen Thanh , Cuong Dang Quoc

Identyfikatory

DOI

10.2478/agriceng-2025-0005

Warianty tytułu

PL

Matematyczny model procesu suszenia cienkowarstwowego ignamu fioletowego za pomocą pompy ciepła z promieniowaniem podczerwonym

• Języki publikacji: EN

Abstrakty

EN

This study focused on the thin-layer drying of yam by infrared-assisted heat pump drying to determine the thin-layer drying model, the effective moisture diffusivity, and the activation energy of moisture within the yam. The thin-layer drying experiment was conducted with input drying parameters such as drying temperatures of 40, 45, and 50°C, drying air velocity of 2.5 m·s-1, and infrared power of 250, 300, and 350 W. In order to determine a suitable thin-layer drying model for describing the yam drying process, six different thin-layer drying models (Lewis, Page, Modified Page, Henderson and Pabis, Wang and Singh, and Midilli) were chosen for nonlinear regression with the experimental drying data. The Midilli model was found to be the most suitable drying model for describing the thin-layer drying of yam. The average effective moisture diffusivity was in the range of 4.184×10^-9 to 8.142×10^-9 m2·s-1, and the activation energy was in the range of 16.78 to 21.01 kJ·mol-1 over the proposed range of drying input parameters.

PL

Celem badania jest opracowanie modelu suszenia cienkowarstwowego ignamu fioletowego za pomocą pompy ciepła z promieniowaniem podczerwonym i określenie efektywnej dyfuzyjności wilgoci zawartej w fioletowym ignamie oraz energii jej aktywacji. Eksperyment suszenia cienkowarstwowego przeprowadzono przy następujących parametrach wejściowych: temperatury suszenia: 40, 45 i 50°C, prędkość powietrza suszącego: 2,5 m·s-1 a moc promieniowania podczerwonego: 250, 300 i 350 W. Aby określić taki model suszenia cienkowarstwowego, który opisywałby proces suszenia ignamu fioletowego przeprowadzono nieliniową regresję danych eksperymentalnych z wykorzystaniem sześciu różnych modeli suszenia cienkowarstwowego (Lewis, Page, zmodyfikowany Page, Henderson i Pabis, Wang i Singh oraz Midilli). Najbardziej odpowiednim modelem okazał się model Midilli. Średnia efektywna dyfuzyjność wilgoci w tym modelu mieściła się w zakresie od 4,184×10-9 do 8,142×10-9 m2·s-1, natomiast energia aktywacji wynosiła od 16,78 do 21,01 kJ·mol-1 w analizowanym zakresie parametrów suszenia.

Słowa kluczowe

EN

drying rate; heat pump; effective moisture diffusivity; activation energy; drying temperature; IR power

PL

szybkość suszenia; pompa ciepła; efektywna dyfuzyjność wilgoci; energia aktywacji; temperatura suszenia; moc promieniowania podczerwonego

• Wydawca: Polskie Towarzystwo Inżynierii Rolniczej
• Czasopismo: Agricultural Engineering
• Rocznik: 2025
• Tom: Vol. 29, No. 1
• Strony: 63--78
• Opis fizyczny: Bibliogr. 49 poz., rys., tab.

Twórcy

autor

Duc Le Anh

• Nong Lam University, Ho Chi Minh City, Vietnam

• https://orcid.org/0000-0002-8498-6203

autor

Hay Nguyen

• Faculty of Vehicle and Energy Engineering, University of Technology and Education Ho Chi Minh City, Vietnam

• https://orcid.org/0000-0002-4068-9362

autor

Kien Pham Van

• Faculty of Automotive Engineering, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam

• https://orcid.org/0000-0002-0974-0908

autor

Tan Nguyen Thanh

• Faculty of Automotive Engineering, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam

• https://orcid.org/0009-0001-6353-1621

autor

Cuong Dang Quoc

• Faculty of Engineering and Technology, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam

• https://orcid.org/0000-0002-7809-2107

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