| Title: | Numerical Simulation of the Mass-Transfer Process Between Ammonia and Water in the Absorption Chiller |
| Other Titles: | Numerická simulace přenosu hmoty mezi amoniakem a vodou v absorpčním chilleru |
| Authors: | Volf, Michal Demianenko, Maryna Starynskyi, Oleksandr Liaposhchenko, Oleksandr Pavlenko, Ivan |
| Citation: | VOLF, M. DEMIANENKO, M. STARYNSKYI, O. LIAPOSHCHENKO, O. PAVLENKO, I. Numerical Simulation of the Mass-Transfer Process Between Ammonia and Water in the Absorption Chiller. In: Lecture Notes in Mechanical Engineering. Cham: Springer, 2020. s. 239-248. ISBN 978-3-030-50490-8 , ISSN 2195-4356. |
| Issue Date: | 2020 |
| Publisher: | Springer |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | 2-s2.0-85086251861 http://hdl.handle.net/11025/43150 |
| ISBN: | 978-3-030-50490-8 |
| ISSN: | 2195-4356 |
| Keywords: | Numerická simulace;přenos hmoty;amoniak;voda;absorpce;chiller |
| Keywords in different language: | Numerical simulation;Mass-Transfer;Process;Ammonia;Water;Chiller, Absorption |
| Abstract: | Článek popisuje absorpční proces plynného amoniaku do kapalné vody v deskovém tepelném výměníku, který je považován za kritickou část absorpčního chladicího systému. Jsou aplikovány dva přístupy pro numerickou simulaci absorpce. První přístup spočívá v simulaci jak vlastního rozpouštění atomů plynného amoniaku v kapalné vodě, tak i jejich následné chemické reakci s molekulami vody za vzniku hydroxidu. Ve druhém, zjednodušeném, přístupu je simulována pouze první část absorpce, tedy jen rozpouštění molekul bez jejich následné reakce. |
| Abstract in different language: | This paper describes the absorption process of gaseous ammonia into liquid water in the plate heat exchanger, which is considered to be the crucial part of an absorption cooling system. Two approaches are utilized to numerically simulate this absorption process. In the first approach, the dissolution of gaseous ammonia into liquid water, as well as the following chemical reaction between the dissolved liquid ammonia and liquid water, are modeled. In the second approach, only the dissolution of ammonia into water is considered. The Henry’s Law with Van’t Hoff correlation is used for the simulation of the ammonia absorption process, namely the calculation of the concentration of ammonia in gas and in liquid. The Henry’s law is utilized since its line has the best correlation with the ammonia-water equilibrium line for the concentrations, which is taken into account in the numerical simulations. The ammonia mass flux from gas to liquid phase and its concentration at the outlet of the computational domain is determined as a result of the simulations. |
| Rights: | Plný text není přístupný. © Springer |
| Appears in Collections: | Konferenční příspěvky / Conference papers (KKE) OBD |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| UWB_AGO_DSMIE-2020_paper.pdf | 1,07 MB | Adobe PDF | View/Open Request a copy |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/43150Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.