Browsing Institutt for energi og prosessteknikk by Author "Ye, Zuliang"
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General heat transfer correlations for supercritical carbon dioxide heated in vertical tubes for upward and downward flows
Ye, Zuliang; Zendehboudi, Alireza; Hafner, Armin; Cao, Feng (Peer reviewed; Journal article, 2022)Supercritical CO2 is a promising working fluid for many industrial applications. To improve the performances of relevant components and systems, the prediction of the heat transfer of supercritical CO2 is an important ... -
Heat transfer and pressure drop of supercritical CO2 in brazed plate heat exchangers of the tri-partite gas cooler
Zendehboudi, Alireza; Ye, Zuliang; Hafner, Armin; Andresen, Trond; Skaugen, Geir (Peer reviewed; Journal article, 2021)The heat transfer characteristic of supercritical CO2 is an essential research topic due to its significant influence on the performance of heat exchangers and systems. In this paper, the heat transfer and pressure drop ... -
Integration of gravity-fed evaporators in CO2 based heat-pump chillers
Hazarika, Mihir Mouchum; Bengsch, Jan; Hafsås, Johan; Hafner, Armin; Svendsen, Eirik Starheim; Ye, Zuliang (Chapter, 2022)This study is carried out to model a gravity-fed evaporator for CO2 based heat-pump chillers. The gravity-fed evaporator loop consists of a separator, a downcomer, a heat exchanger, and a riser. The working principle is ... -
Investigation on the performance of fluted tube-in-tube gas cooler in transcritical CO2 heat pump water heater
Ye, Zuliang; Wang, Yikai; Zendehboudi, Alireza; Hafner, Armin; Cao, Feng (Peer reviewed; Journal article, 2021)The utilization of fluted inner tube in tube-in-tube heat exchangers is an effective way to improve the heat transfer performance. Based on the segmented model, the performance of a fluted tube-in-tube gas cooler (FTGC) ...