Recommended by the IIR / IIR document
Numerical investigation on a heat-driven free-piston thermoacoustic-Stirling refrigeration system with a unique configuration for recovering low-to-medium grade waste heat.
Summary
In this paper, a unique heat-driven free-piston thermoacoustic-Stirling refrigeration configuration is proposed to effectively provide room-temperature cooling by using low/medium-grade waste heat. Compared with the traditional duplex free-piston Stirling refrigerator, the unique feature of the proposed novel configuration is that it has only one single moving displacer and uses a thermal buffer tube to directly couple a thermoacoustic heat engine and a refrigerator, consequently leading to higher reliability and compactness. Numerical simulation and analysis have been conducted, focusing on the acoustical and thermodynamic characteristics as well as its global cooling performance. The thermoacoustic characteristics of the system are analyzed in details to understand its operating mechanism and cooling performance. Additional analyses are focused on the influences of the heating temperature and the working pressure on the thermodynamic performances of this system. A 2kW-class case study for air-conditioning refrigeration application shows that it can achieve a COP (coefficient of performance) of more than 0.62 at a refrigeration temperature of 10°C, under the conditions of an ambient temperature of 50°C and a heating temperature of 300°C. Its compactness and high efficiency are very competitive to the current heat-driven refrigerators, showing great potential in compact air-conditioning application by utilizing low-to-medium grade waste heat sources.
Available documents
Format PDF
Pages: 140-149
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: Numerical investigation on a heat-driven free-piston thermoacoustic-Stirling refrigeration system with a unique configuration for recovering low-to-medium grade waste heat.
- Record ID : 30029074
- 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.2021.05.001
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles in this issue (41)
See the source
Indexing
-
Themes:
Ejector systems, air cycle, Stirling cycle, other cycles);
Other energy-saving and energy-recovery systems;
Other refrigerating systems (desiccant cooling, thermoelectrics, thermoacoustics…) - Keywords: Design; Stirling; Thermoacoustics; Waste heat; Heat recovery; Simulation; Modelling; Cooling capacity; COP; Performance
-
Modeling and simulation of a desiccant assisted...
- Author(s) : NÓBREGA C. E. L., SPHAIER L. A.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Exergy and energy analysis of waste heat recove...
- Author(s) : MAATOUK C., SLIM R.
- Date : 2014/07/14
- Languages : English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Heat-Only-Driven Vuilleumier Refrigeration.
- Author(s) : FISCHER A., KHODJA A., PAUL R., HOFFMANN K. H.
- Date : 2022/02
- Languages : English
- Source: Applied Sciences - vol. 12 - n. 4
- Formats : PDF
View record
-
Single-objective optimization for stack unit of...
- Author(s) : RAHMAN A. A., ZHANG X.
- Date : 2019/02
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
- Formats : PDF
View record
-
Performance analysis of a novel ejector-assiste...
- Author(s) : KUMAR A., MODI A.
- Date : 2022
- Languages : English
- Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record