Share
IIR document
New heat exchangers for high efficiency CO2 plants.
Number: pap. 1106
Author(s) : FILIPPINI S., MERLO U.
Summary
CO2 refrigeration systems are now in widespread use in many applications, especially in the retail sector. In fact CO2 is an excellent, environmentally-friendly refrigerant which requires very efficient heat exchangers to reach high performance. LU-VE recently made developments with the aim of further improving the design of the finned heat exchanger, using also new technology with a very compact heat transfer matrix with tube diameter of only 5mm. The new heat exchanger configuration is designed both for gas coolers and unit coolers. The paper describes the activity of designing and testing the new geometry inside the CO2 test plant of the company. The new geometry provides an excellent balance between performance and reduced quantity of refrigerant in the circuit. A further development was made in the heat pump sector, in particular for supermarket applications. The decision to integrate the refrigeration and heating systems in these buildings is becoming increasingly common. However, in order to guarantee a sufficient quantity of heat to warm the supermarket even on the coldest days, with temperature below -10°C, an additional evaporator, positioned outside, must be added. This involves a special machine for which LU-VE has developed innovative technologies, capable of achieving very high levels of heat transfer efficiency, as described in this article.
Available documents
Format PDF
Pages: 10 p.
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: New heat exchangers for high efficiency CO2 plants.
- Record ID : 30019076
- Languages: English
- Source: 12th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
- Publication date: 2016/08/21
- DOI: http://dx.doi.org/10.18462/iir.gl.2016.1106
Links
- See translations: Nuevos intercambiadores de calor para plantas de CO2 de alta eficiencia.
Pasar de la G a la A+++ en equipos de baja temperatura comerciales.
Limpieza de circuitos frigoríficos para alargar la vida en las instalaciones existentes y mejorar su eficiencia energética.
See other articles from the proceedings (140)
See the conference proceedings
Indexing
-
Air cooled heat exchangers for CO2 refrigeratio...
- Author(s) : FILIPPINI S., MERLO U.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
View record
-
Emeritus: the new condenser/CO2 gas ...
- Author(s) : FILIPPINI S., MARIANI G., PERROTTA L., et al.
- Date : 2017/05/11
- Languages : English
- Source: 7th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
- Formats : PDF
View record
-
DRY and SPRAY technology: high efficient heat e...
- Author(s) : FILIPPINI S.
- Date : 2011/04/14
- Languages : English
- Source: 4th Conference on Ammonia Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 14-16, 2011.
- Formats : PDF
View record
-
New generation of air cooled heat exchangers fo...
- Author(s) : FILIPPINI S., MERLO U.
- Date : 2015/04/16
- Languages : English
- Source: 6th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 16-18, 2015.
- Formats : PDF
View record
-
Design optimization of variable geometry microc...
- Author(s) : HUANG L., AUTE V., RADERMACHER R.
- Date : 2014/07/14
- Languages : English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record