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<p>Developing energy-efficient and environmentally friendly refrigeration technology is highly desired to tackle climate change. Emerging caloric effect-based cooling technologies such as magneto-, electro- and ionocaloric effects are promising but suffer from large driving field strengths, low adiabatic temperature change or insufficient power density. Here we propose a sorption-driven dissolution refrigeration cycle with an extendable thermal storage function. Theoretical and experimental results show larger adiabatic temperature change compared with solid-state caloric effects by using medium- or low-grade heat (80–150 °C) as the cyclic driving energy. We demonstrated the viability of a practical system using such a cycle, with experimental results showing adiabatic temperature change of 37 K and a minimum cooling temperature of −25.4 °C. Importantly, the sorption process allows the heat storage and flexible cold and heat supply to adapt to the diverse and complex application scenarios. This work shines light on the exploitation of renewable energy for efficient cooling and heating.</p>

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Sorption-driven dissolution refrigeration cycle with thermal storage

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Si Wu,
  • Kaiyue Tang,
  • Xiao Zhang,
  • Haoyuan Sang,
  • Ruxue Du,
  • Pengfei Wang,
  • Jiaxing Xu,
  • Ruzhu Wang,
  • Tingxian Li

摘要

Developing energy-efficient and environmentally friendly refrigeration technology is highly desired to tackle climate change. Emerging caloric effect-based cooling technologies such as magneto-, electro- and ionocaloric effects are promising but suffer from large driving field strengths, low adiabatic temperature change or insufficient power density. Here we propose a sorption-driven dissolution refrigeration cycle with an extendable thermal storage function. Theoretical and experimental results show larger adiabatic temperature change compared with solid-state caloric effects by using medium- or low-grade heat (80–150 °C) as the cyclic driving energy. We demonstrated the viability of a practical system using such a cycle, with experimental results showing adiabatic temperature change of 37 K and a minimum cooling temperature of −25.4 °C. Importantly, the sorption process allows the heat storage and flexible cold and heat supply to adapt to the diverse and complex application scenarios. This work shines light on the exploitation of renewable energy for efficient cooling and heating.