Developing zero–global warming potential refrigerants has emerged as one area that helps address global climate change concerns. Various high-efficiency caloric cooling techniques meet this goal, but scaling them up to technologically meaningful performance remains challenging. We have developed an elastocaloric cooling system with a maximum cooling power of 260 watts and a maximum temperature span of 22.5 kelvin. These values are among the highest reported for any caloric cooling system. Its key feature is the compression of fatigue-resistant elastocaloric nitinol (NiTi) tubes configured in a versatile multimode heat exchange architecture, which allows the harnessing of both high delivered cooling power and large temperature spans. Our system shows that elastocaloric cooling, which only emerged 8 years ago, is a promising direction for commercializing caloric cooling.

中文翻译：

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高性能多模弹性热冷却系统

开发零全球变暖潜能值的制冷剂已成为帮助解决全球气候变化问题的一个领域。各种高效热量冷却技术可满足这一目标，但将它们扩展到具有技术意义的性能仍然具有挑战性。我们开发了一种弹性热冷却系统，其最大冷却功率为 260 瓦，最大温度跨度为 22.5 开尔文。这些值是任何热量冷却系统报告的最高值之​​一。其主要特点是在多功能多模式热交换架构中配置的抗疲劳弹性热镍钛诺 (NiTi) 管的压缩，允许利用高交付冷却功率和大温度跨度。我们的系统显示 8 年前才出现的弹性热能冷却，