Share
IIR documentSummary
The heat exchanger is an important component of pulse tube refrigerators (PTRs). The heat transfer in a cold heat exchanger under periodic unsteady flow is studied with the CFD method. The basic heat transfer mechanism has been explained, including the local heat transfer coefficient, heat flux, the temperature distribution of the narrow tube, and the relation between the Nusselt number and the Reynolds number. The regenerative effect of the cold heat exchanger of PTRs has been presented. The cold heat exchanger is cooled down by the low temperature gas due to the oscillating flow, and a temperature gradient is formed inside gradually. The regenerative effect will decrease the expansion work of the PTRs and lower the efficiency of the system, especially under bigger pressure ratio conditions.
Available documents
Format PDF
Pages: 114-120
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: Regenerative effect of heat exchanger in pulse tube refrigerator.
- Record ID : 30027702
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
- Publication date: 2020/10
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2020.04.016
Links
See other articles in this issue (50)
See the source
Indexing
-
Themes:
Evaporators, condensers and other heat exchangers;
Heat transfer - Keywords: Simulation; Heat exchanger; Pulse tube; Heat transfer; CFD
-
A computational approach to design and investig...
- Author(s) : RAYHAN S., KARIYA K., MIYARA A.
- Date : 2021/09/01
- Languages : English
- Source: 6th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
View record
-
Multi-scale analysis and optimization of tube s...
- Author(s) : BACELLAR D., AUTE V., RADERMACHER R.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
View record
-
A computational fluid dynamic study on polymer ...
- Author(s) : ZHANG M., NAWAZ K., LI K., SMITH T.
- Date : 2022
- Languages : English
- Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Airside performance correlations and optimal ai...
- Author(s) : BACELLAR D., AUTE V., RADERMACHER R.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
CFD modeliranje hidrodinamickih pojava i prenos...
- Author(s) : MANDIC D.
- Date : 2016/12
- Languages : English
- Source: 47th International HVAC&R Congress and Exhibition.
- Formats : PDF
View record