Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions
Clothes tumble dryers, including vented electric dryers (VEDs) and closed-loop heat pump dryers (CHDs), are widely used in households because of their convenience. However, VEDs consume excessive amounts of energy, and CHDs require a long drying time; therefore, improvements in both energy efficienc...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25001261 |
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| author | Yongju Lee Seonghwan Kim Changho Han Dongchan Lee Yongchan Kim |
| author_facet | Yongju Lee Seonghwan Kim Changho Han Dongchan Lee Yongchan Kim |
| author_sort | Yongju Lee |
| collection | DOAJ |
| description | Clothes tumble dryers, including vented electric dryers (VEDs) and closed-loop heat pump dryers (CHDs), are widely used in households because of their convenience. However, VEDs consume excessive amounts of energy, and CHDs require a long drying time; therefore, improvements in both energy efficiency and drying speed are needed. This study proposes a novel vented heat pump tumble dryer (VHD) that combines the advantages of both the VED and CHD to improve the drying performance. The performance improvement and limitations of the VHD compared to those of the VED and CHD are analyzed using a simulation model. The VHD demonstrates an 18.1 % reduction in drying time and a 25.3 % reduction in overall power consumption compared to the CHD. Furthermore, the VHD shows a substantially higher specific moisture extraction rate than the VED with an optimized control logic, while maintaining a similar drying time. In addition, the VHD exhibits a better drying performance than the CHD in different climates, with up to 31 % shorter drying time and 55 % higher energy efficiency. The results of this study provide fundamental performance characteristics of various types of heat pump tumble dryers and can be used to optimize VHDs and CHDs. |
| format | Article |
| id | doaj-art-8002114b32fe467e9b7dcbeb926f87aa |
| institution | DOAJ |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-8002114b32fe467e9b7dcbeb926f87aa2025-08-20T02:59:50ZengElsevierCase Studies in Thermal Engineering2214-157X2025-04-016810586610.1016/j.csite.2025.105866Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regionsYongju Lee0Seonghwan Kim1Changho Han2Dongchan Lee3Yongchan Kim4Department of Mechanical Engineering, Korea University, Anam-ro 145, Sungbuk-gu, Seoul, 02841, Republic of KoreaDepartment of Mechanical Engineering, Korea University, Anam-ro 145, Sungbuk-gu, Seoul, 02841, Republic of KoreaDepartment of Mechanical Engineering, Korea University, Anam-ro 145, Sungbuk-gu, Seoul, 02841, Republic of KoreaDepartment of Mechanical and Information Engineering, University of Seoul, Seoulsiripdae-ro 163, Dongdaemun-gu, Seoul, 02504, Republic of KoreaDepartment of Mechanical Engineering, Korea University, Anam-ro 145, Sungbuk-gu, Seoul, 02841, Republic of Korea; Corresponding author.Clothes tumble dryers, including vented electric dryers (VEDs) and closed-loop heat pump dryers (CHDs), are widely used in households because of their convenience. However, VEDs consume excessive amounts of energy, and CHDs require a long drying time; therefore, improvements in both energy efficiency and drying speed are needed. This study proposes a novel vented heat pump tumble dryer (VHD) that combines the advantages of both the VED and CHD to improve the drying performance. The performance improvement and limitations of the VHD compared to those of the VED and CHD are analyzed using a simulation model. The VHD demonstrates an 18.1 % reduction in drying time and a 25.3 % reduction in overall power consumption compared to the CHD. Furthermore, the VHD shows a substantially higher specific moisture extraction rate than the VED with an optimized control logic, while maintaining a similar drying time. In addition, the VHD exhibits a better drying performance than the CHD in different climates, with up to 31 % shorter drying time and 55 % higher energy efficiency. The results of this study provide fundamental performance characteristics of various types of heat pump tumble dryers and can be used to optimize VHDs and CHDs.http://www.sciencedirect.com/science/article/pii/S2214157X25001261Heat pump clothes tumble dryerVentedClosed-loopDrying performanceTransient simulation |
| spellingShingle | Yongju Lee Seonghwan Kim Changho Han Dongchan Lee Yongchan Kim Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions Case Studies in Thermal Engineering Heat pump clothes tumble dryer Vented Closed-loop Drying performance Transient simulation |
| title | Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| title_full | Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| title_fullStr | Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| title_full_unstemmed | Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| title_short | Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| title_sort | comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions |
| topic | Heat pump clothes tumble dryer Vented Closed-loop Drying performance Transient simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25001261 |
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