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Preliminary study on the hybrid adsorption cooling system
Mahdi Koushaeian,Xuan Quang Duong,Moon Yong Park,Jae Dong Chung 대한설비공학회 2021 대한설비공학회 학술발표대회논문집 Vol.2021 No.6
Hybrid systems are going popular for cooling, heating, refrigeration purposes in different applications, whereas they allow using the benefits of both technologies and better consumption of renewable sources. However, this paper presents a combination of mechanical vapor compression and adsorption techniques that have been studied as a hybrid cooling system. An adsorption cooling system employing silica gel with two adsorption beds has been proposed. This system has been studied theoretically to work under different operating conditions using a proposed simulation MATLAB code. At the first stage, validated the vapor compression cooling and adsorption system in the individual state working. In addition, the result has been compared with an adsorption system to tell the benefit of the combination.
Evaluation of Different MOFs for Short-term Adsorption-based Energy Storage (ATES)
Abdullah,Mahdi Koushaeian,Duong Xuan Quang,Jae-Dong Chung 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.11
thermal energy storage could the future technology to save electricity consumption in residential buildings. This study proposed to evaluate a typical closed cycle adsorption thermal energy storage system (ATES). Adsorbent material selection is crucial consideration for any ATES system. Different MOFs energy densities were calculated using validated code in MATLAB. The conventional adsorbent like silica gel has lower performance than MOFs. (CH₃)₂MOF-801show highest store energy density as compared to other selected MOFs. Furthermore, maximum useful stored energy can be extracted from this MOF. Hence using MOFs is viable option for thermal energy storage applications.
환경 조건에 따른 버스 내부 수치 해석적 연구: (2) 온열감 평가
박종훈,Peyman Gholamali Zadeh,Mahdi Koushaeian,Abdullah Khan,Xuan Quang Duong,정재동 대한설비공학회 2023 설비공학 논문집 Vol.35 No.12
The majority of our modern life is spent indoors, and with this comes an increased emphasis on the importance of indoor comfort for the occupants. This applies not only to residential or office spaces but also to transportation; passenger comfort in public transportation such as buses is also required. However, there is a lack of research on the expected thermal sensation, which is one of the factors that determine indoor comfort in buses and mean radiant temperature, which has a significant impact on thermal sensation. Therefore, this study analyzes the heat flow characteristics in the vehicle according to the supply air volume, number of passengers, and set temperature for a city bus in summer, and evaluates the Mean Radiant Temperature (MRT) and Predicted Mean Vote (PMV) obtained from it.