- Path:
-
Volume Nr. 182, 05.08.1913
Periodical
- Title:
- Chemical product and process modeling
- Publication:
-
Berlin: De Gruyter
- Note:
- Gesehen am 06.02.2012
- C!URL-Ä(06-02-12)
- Scope:
- Online-Ressource
- ISSN:
- 1934-2659
- ZDB-ID:
-
2263129-X
- VÖBB-Katalog:
- 35326638
- Keywords:
- Zeitschrift
- Classification:
- Naturwissenschaften
- Collection:
- Naturwissenschaften
- Copyright:
- Rights reserved
- Accessibility:
- Eingeschränkter Zugang mit Nutzungsbeschränkungen
Article
- Title:
- Raising pros and cons of falling film and packed column for absorption of NH 3 by a NH 3 –H 2 O solution
- Publication:
-
Berlin: De Gruyter, 2025
- Language:
- English
- Information:
- Abstract: The refrigeration absorption cycle is a mature technology to obtain refrigerant effect at low temperatures, and the absorber unit plays a key role on the cycle efficiency. Falling liquid films and packed columns are usually employed in refrigeration cycle with ammonia and water. This study addresses the pros and cons of each equipment, comparing both in terms of absorption capacity, equipment cost and cooling demand by mathematical modelling and simulations. The packed absorption column is modeled in Aspen Plus, and the falling film, by an equation-oriented approach in Matlab. The results indicate that the falling film ensures a uniform coolant distribution, enhancing ammonia absorption efficiency. Consequently, for the same absorption capacity, the falling film enables nearly 80 % reduction in the required volume of the column. However, this space-saving advantage comes at the cost of a 51 % increase in capital and installation expenses. Therefore, the falling film offers a more compact unit but, when space limitation is not an issue, absorption columns might take advantage.
- Scope:
- Online-Ressource
- Note:
- Kein Open Access
- Archivierung/Langzeitarchivierung gewährleistet
- Keywords:
- absorption ; ammonia and water ; falling film ; packed column
- Classification:
- Naturwissenschaften
- Religion
- Collection:
- Naturwissenschaften
- Religion
- Copyright:
- Rights reserved
- Accessibility:
- Eingeschränkter Zugang mit Nutzungsbeschränkungen
