IIR document
Design and commissioning of a modular multi-stage two-evaporator transcritical CO2 test stand.
Author(s) : BARTA R. B., ZIVIANI D., GROLL E. A.
Type of article: IJR article
Summary
As the adverse effects of global warming become increasingly apparent, the need for low-GWP solutions in the HVAC&R industry is its highest in decades. Alternative working fluids, including natural refrigerants such as Carbon Dioxide (CO2), and high efficiency systems are ways to mitigate the negative environmental impact of refrigeration systems. Researchers have focused on investigating several transcritical CO2 cycles for supermarket and transport applications. Yet, a systematic experimental comparison between multiple advanced cycle architectures is still lacking. To this end, a novel test stand capable of comparing two methods of expansion as well as open-economization at one or both evaporator pressure levels, allowing six cycle configurations that represent much of the state-of-the-art has been developed. Cycle designs, thermodynamic modeling for component sizing, and experimental validation of test stand operation and energy balances are discussed in-depth. Limitations and modifications to the test stand are discussed, as are next steps.
Available documents
Format PDF
Pages: 392-403
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Design and commissioning of a modular multi-stage two-evaporator transcritical CO2 test stand.
- Record ID : 30029097
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
- Publication date: 2021/10
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2021.05.033
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles in this issue (41)
See the source
Indexing
-
Alternative positions of internal heat exchange...
- Author(s) : LIU S., WANG J., DAI B., YANG X., NIAN V., LI H., YUAN J.
- Date : 2021/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
- Formats : PDF
View record
-
Performance analysis of a modified dual-ejector...
- Author(s) : LIU J., YU J.
- Date : 2021/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
- Formats : PDF
View record
-
Thermodynamic study of carbon dioxide transcrit...
- Author(s) : HUANG C., LI Z., YE Z., WANG R.
- Date : 2022/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 137
- Formats : PDF
View record
-
CO2-DX systems for medium-and low-temperature r...
- Author(s) : SIENEL T., FINCKH O.
- Date : 2007/07/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record
-
Performance relationship of air-cooled CO2...
- Author(s) : DOORNBOS G., HEININGEN K. van, GERRITSEN J.
- Date : 2022/06/13
- Languages : English
- Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
- Formats : PDF
View record