A review and analysis of the elasto-caloric effect for solidstate refrigeration devices: Challenges and opportunities
- PDF / 742,887 Bytes
- 18 Pages / 612 x 792 pts (letter) Page_size
- 70 Downloads / 212 Views
REVIEW A review and analysis of the elasto-caloric effect for solidstate refrigeration devices: Challenges and opportunities
Aditya Chauhan and Satyanarayan Patel, Rahul Vaish, School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal pradesh, 175 001, India Chris R. Bowen, Department of Mechanical Engineering, University of Bath, Bath, Somerset, BA2 7AY, United Kingdom Address all correspondence to Rahul Vaish at [email protected] These authors contributed equally to this work. (Received 22 August 2014; accepted 30 October 2015)
ABSTRACT This review article deals with the current state-of-art research and developments in the field of elasto-caloric effect as applicable for solid-state refrigeration devices. Furthermore, the current challenges and future prospects in the field of elasto-caloric refrigeration technology have also been discussed. Solid-state refrigeration is of interest since it has the potential to be a light-weight and environmentally-friendly alternative for small scale cooling. Much research is currently being undertaken to develop solid-state cooling technologies which is primarily achieved by utilizing the significant caloric effect exhibited by particular classes of materials. A variety of caloric effects exist including: electro-caloric, magnetocaloric, baro-caloric, and elasto-caloric. Among these, the elasto-caloric effect has shown potential within the field of mechanical refrigeration with shape-memory alloys being potential materials for producing significant levels of elasto-caloric cooling. This article explains the elasto-caloric effect in shape memory alloys, polymers, and ferroelectric materials. Technical parameters associated with the elasto-caloric performance of these materials are discussed. A discussion regarding existing functional shortcomings and future prospects in the field of mechanical refrigeration is covered. Aspects related to the long term environmental impact of solid-state cooling technology are also discussed. This study is aimed at promoting the understanding and commercial investigation of the elasto-caloric effect in the field of solid state refrigeration. Keywords: elasto-caloric; solid-state refrigeration; shape memory alloy; ferroelectric
DISCUSSION QUESTIONS • Solid-state caloric effects propose to offer a high efficiency and cleaner alternative to conventional vapor-compression technology for electronic cooling applications. • Large entropy change associated with phase transformation in ferroic materials can be exploited for giant caloric effects. • Elasto-caloric effect offers a bulk, high refrigeration capacity alternative for efficient cooling under low load conditions.
Introduction Solid-state refrigeration is generally associated with small scale cooling applications. For example, it is often necessary to install an on-board refrigeration system to maintain the temperature of electronic systems,1 where it is essential to remove unwanted heat which is generated during operation. With modern advances in solid-state technologies, elect
Data Loading...
