Influence of drum inlet air conditions on drying process in a domestic tumble dryer

Novak, Lovrenc (author), Gatarić, Pero (author), Širok, Brane (author)

This study examines how the inlet air temperature, relative humidity, and flow rate influence the textile drying process in an open cycle tumble dryer. An experimental setup was prepared by connecting a domestic tumble dryer to an external system for controlled heating, humidification, and transport of air. Experiments were conducted by drying cotton textiles (8 kg dry mass) at different air inlet conditions. On the basis of measured data, correlations for determination of the total drying time, the moisture evaporation rate during the constant drying rate, and the area-mass transfer coefficient were developed. The process in the drum was modeled by using an established moisture evaporation model, based on sorption isotherms. A commonly used and a recently reported sorption isotherm for cotton were used with the model. Agreement between calculated and measured drying curves was better in case of the commonly used sorption isotherm, but final moisture content was better predicted by the recently reported sorption isotherm.

• Language: English
• Keywords: heat and mass transfer, mathematical modeling, vented tumble dryer, isotherms, textile drying
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Publication date: 11.09.2018
• Year: 2019
• Number of pages: Str. 781-792
• Numbering: Vol. 37, no. 6
• PID: 20.500.12556/RUL-126445
• UDC: 536.7:648.336(045)
• ISSN on article: 0737-3937
• DOI: 10.1080/07373937.2018.1461111
• COBISS.SI-ID: 16225819
• Publication date in RUL: 22.04.2021

Record is a part of a journal

• Title: Drying technology
• Shortened title: Dry. technol.
• Publisher: Taylor & Francis
• ISSN: 0737-3937
• COBISS.SI-ID: 5922823

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
• Licensing start date: 11.09.2018

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
• Licensing start date: 11.09.2018

Secondary language

• Language: Slovenian
• Keywords: prenos toplote in mase, matematično modeliranje, prezračevalni sušilni stroj, izoterme, sušenje tekstila