http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
배터리 열관리 시스템을 위한 히트파이프 보조 하이브리드 핀 냉각 구조에 대한 실험 연구
한욱민(Ukmin Han),정기택(Gitaek Jung),김현태(Hyuntae Kim),이호성(Hoseong Lee) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
The effective and fast heat dissipation under severe operating conditions such as fast charging is an essential for battery thermal management system (BTMS). In this regard, heat pipe cooling is expected as a good solution with its high thermal performance, but the disadvantage of requiring sufficient condensation parts makes it reluctant to use in BTMS. To resolve this problem, the heat pipe assisted hybrid fin cooling structure is newly proposed in the current study and have experimentally tested its thermal performances under fast charging conditions. The bottom cooling method using the cooling plate attached at the bottom of the battery is set as the baseline BTMS for the comparative study. From the experimental result, the proposed BTMS is confirmed to be able to maintain the battery maximum temperature and inner-cell temperature difference below the 35℃ and 5℃ under 3.0C fast charging conditions.
전기자동차 파워트레인 모델링을 통한 배터리 시스템 소비전력 예측 및 발열 동특성 분석
한욱민(Ukmin Han),이승훈(Seunghoon Lee),이호성(Hoseong Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The less drive range of electric vehicles (EVs) compared to the internal combustion engine vehicles has become a major challenge to the spread of EVs. To solve this problem, accurate prediction of the electric power consumption of EVs during driving is highly required. In this context, the current study focuses on developing the EV power consumption model based on vehicle dynamics to estimate the power demands on the EV battery pack during driving. The comprehensive modeling on the EV powertrain composed of the battery pack, electric motor, regenerative brake system, auxiliary system, driveline system is conducted to estimate the transient power demands considering each system efficiency. Along with the applications of four standard driving cycles, the developed model is well validated with the experimental data and used for further investigation of the power consumption and battery heat generation under various operating conditions.
배터리 열관리 시스템을 위한 히트파이프 보조 하이브리드 핀 냉각 구조에 대한 실험 연구
한욱민(Ukmin Han),정기택(Gitaek Jung),김현태(Hyuntae Kim),이호성(Hoseong Lee) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
The effective and fast heat dissipation under severe operating conditions such as fast charging is an essential for battery thermal management system (BTMS). In this regard, heat pipe cooling is expected as a good solution with its high thermal performance, but the disadvantage of requiring sufficient condensation parts makes it reluctant to use in BTMS. To resolve this problem, the heat pipe assisted hybrid fin cooling structure is newly proposed in the current study and have experimentally tested its thermal performances under fast charging conditions. The bottom cooling method using the cooling plate attached at the bottom of the battery is set as the baseline BTMS for the comparative study. From the experimental result, the proposed BTMS is confirmed to be able to maintain the battery maximum temperature and inner-cell temperature difference below the 35℃ and 5℃ under 3.0C fast charging conditions.
한욱민(Ukmin Han),강희승(Heeseung Kang),정호영(Jeongho Young),김수환(Soohwan Kim),이호성(Hoseong Lee) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
As response to climate change and strengthened environmental regulations, interests in developing various renewable systems are grown. Electric vehicles and plug-in hybrid vehicles, in particular, are anticipated as the next generation vehicles. Therefore numerous studies on then have been under way for a long time. As electric vehicles use secondary batteries, there is a following problem of battery heat generation. The energy density of a battery is expected to continuously increase, more efficient battery thermal management system (BTMS) is required to ensure its performance and safety. In this study, various BTMS systems that have been studied so far have been analyzed in advance and the integrated phase change heat transfer package composed of heatpipe, PCM plate, and roll bond heat exchanger systems are newly developed. These three thermal management systems are interacted with the battery heat dissipation and controlled its average temperature to a optimum temperature range.