Development of a tube-based elastocaloric regenerator loaded in compression
ǂa ǂreview
Abstract
In recent years, devices based on the elastocaloric effect (eCE) have emerged as one of the most promising alternatives to vaporcompression cooling and heating systems. After a brief overview of elastocaloric materials and elastocaloric devices developed to date, this paper reviews our recent activities in the development of tube-based elastocaloric regenerators loaded in compression. These include the evaluation of novel elastocaloric thermodynamic cycles, the characterization of the elastocaloric and fatigue behavior of Ni–Ti tubes, the thermo-hydraulic evaluation of a tubebased geometry to be applied as an elastocaloric regenerator, the buckling analysis of Ni–Ti tube in compression, and finally the development, numerical modeling, and testing of a tube-based elastocaloric regenerator in both cooling and heat-pumping modes. The developed regenerator shows a durable operation with more than 300,000 cycles, a maximum temperature span of more than 31 K at zero thermal load, and a heating power of more than 60 W at a temperature span of 10 K using only 13.7 g of elastocaloric material. In addition, further improvements of the tube-based elastocaloric regenerators related to a lower thermal mass of the regenerator’s housing are shown and discussed.
Keywords
elastocaloric effect;shape memory alloys;buckling;elastocaloric regenerator;fatigue life;cooling;heat pumps;
Data
| Language: | English |
|---|---|
| Year of publishing: | 2024 |
| Typology: | 1.02 - Review Article |
| Organization: | UL FS - Faculty of Mechanical Engineering |
| UDC: | 621.56:620.178.3 |
| COBISS: |
206932739
|
| ISSN: | 2199-384X |
| Views: | 46 |
| Downloads: | 25 |
| Average score: | 0 (0 votes) |
| Metadata: |
|
Other data
| Secondary language: | Slovenian |
|---|---|
| Secondary keywords: | elastokalorični učinek;zlitine s spominom oblike;upogibanje;elastokalorični regenerator;utrujanje;hlajenje;toplotne črpalke; |
| Type (COBISS): | Article |
| Pages: | str. 99-118 |
| Volume: | ǂiss. ǂ2 |
| Issue: | ǂVol. ǂ10 |
| Chronology: | Jun. 2024 |
| DOI: | 10.1007/s40830-024-00483-z |
| ID: | 25001716 |
Recommended works:
Thin-walled Ni-Ti tubes under compression
2020,
ideal candidates for efficient and fatigue-resistant elastocaloric cooling
ǂA ǂregenerative elastocaloric heat pump
2016,
no subtitle data available
From the elastocaloric effect towards an efficient thermodynamic cycle
2022,
no subtitle data available
Elastocaloric effect vs fatigue life
2018,
exploring the durability limits of Ni-Ti plates under pre-strain conditions for elatocaloric coolling