Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-02-12 DOI:10.1016/j.csite.2025.105866

Yongju Lee , Seonghwan Kim , Changho Han , Dongchan Lee , Yongchan Kim

{"title":"Comparative analysis of drying performances of various types of heat pump tumble dryers at different climate regions","authors":"Yongju Lee , Seonghwan Kim , Changho Han , Dongchan Lee , Yongchan Kim","doi":"10.1016/j.csite.2025.105866","DOIUrl":null,"url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"68 ","pages":"Article 105866"},"PeriodicalIF":6.4000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214157X25001261","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"THERMODYNAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

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.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.