Blar i Institutt for energi og prosessteknikk på forfatter "Zendehboudi, Alireza"
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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 ... -
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) ... -
Natural refrigerant heat pumps for residential buildings
Sanchez, Daniel Carbonell; Dudita, Mihaela; Pantelis, Spyridon; Zendehboudi, Alireza; Peña, Xabier Anton; Schubert, Maike (Journal article, 2021)Joining the forces for a clean energy transition, the partners from EU funded TRI-HP project (https://www.youtube.com/watch?v=DYunHAQ1Nd4) have a holistic approach for providing energy to multi-family residential buildings ... -
Performance investigation of an ejector-assisted transcritical CO2 heat pump with brazed plate tri-partite gas cooler for space heating and hot water production
Ebel, Tom; Zendehboudi, Alireza; Hafner, Armin; Sanchez, Dani C. (Chapter, 2022)The carbon dioxide (CO2) heat pump water heater is recognized as a potential technology for the production of domestic hot water (DHW) and space heating (SH). In this paper, the performance of a transcritical CO2 heat pump ... -
Testing of tri-partite CO2 gas cooler prototype for domestic hot water and space heating
Tolstorebrov, Ignat; Zendehboudi, Alireza; Banasiak, Krzysztof; Köster, Lukas; Álvarez Pardiñas, Ángel; Hafner, Armin (Chapter, 2020)The aim of this study was to test a tri-partite gas cooler for CO2 heat pumps (5-13 kW). The proposed heat exchanger allowed the simultaneous and separate production of space heating and domestic hot water with an integrated ...