Print Email Facebook Twitter Ammonia absorption in ionic liquids-based mixtures in plate heat exchangers studied by a semi-empirical heat and mass transfer framework Title Ammonia absorption in ionic liquids-based mixtures in plate heat exchangers studied by a semi-empirical heat and mass transfer framework Author Wang, M. (TU Delft Engineering Thermodynamics) He, Lijuan (Inner Mongolia Normal University China) Infante Ferreira, C.A. (TU Delft Engineering Thermodynamics) Date 2019 Abstract Unfavorable transport properties have always been pointed out as the key factors that hinder the application of ammonia/ionic liquids (NH 3 /ILs) in absorption cycles, while heat and mass transfer of these new fluids in components have been rarely reported. In this study, a corrugated plate heat exchanger is selected as the geometry for exploring the absorption of NH 3 in the proposed NH 3 /ILs working fluids. The process is studied making use of a semi-empirical framework: experimental data is needed to determine unknown information of heat and mass transfer, and a numerical model is developed making use of frequently applied theories. In addition, relevant transport properties of the NH 3 /ILs working fluids are modeled based on collected experimental data. The proposed model is used to study the heat and mass transfer performance during the absorption of NH 3 vapor into NH 3 /ILs fluids. Distribution of local parameters and overall heat and mass transfer characteristics are obtained. The performance of absorption of NH 3 into different working fluids is investigated as well. The overall heat transfer coefficient is found around 1.4 kW/(m 2 ·K) for the most promising working fluid NH 3 /[emim][SCN]. Subject AbsorptionAmmoniaHeat transferIonic liquidLithium nitrateMass transferPlate heat exchanger To reference this document use: http://resolver.tudelft.nl/uuid:23187ae3-8898-4b2a-8ed9-ca221b693adc DOI https://doi.org/10.1016/j.ijheatmasstransfer.2019.02.063 ISSN 0017-9310 Source International Journal of Heat and Mass Transfer, 134, 1302-1317 Part of collection Institutional Repository Document type journal article Rights © 2019 M. Wang, Lijuan He, C.A. Infante Ferreira Files PDF 1_s2.0_S0017931018350853_main.pdf 1.74 MB Close viewer /islandora/object/uuid:23187ae3-8898-4b2a-8ed9-ca221b693adc/datastream/OBJ/view