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<p>Thermo-acoustic refrigeration (TAR) leverages high-amplitude sound waves to create temperature gradients for cooling, offering an environmentally friendly alternative to conventional refrigeration systems. By eliminating the need for harmful refrigerants, TAR significantly reduces greenhouse gas emissions while achieving higher energy efficiency with coefficients of performance (COP) ranging from 1.5 to 2.2. Advances in material selection, such as porous ceramics for stacks and graphene-coated copper for heat exchangers, have enhanced thermal conductivity and system durability. Design innovations, including honeycomb stack geometries and hybrid gas mixtures like helium-argon, have further optimized cooling power and operational efficiency. Experimental validations closely align with theoretical predictions, supporting the practical application of TAR for industrial, residential, and portable use. While challenges such as acoustic losses, material costs, and scalability remain, ongoing research in hybrid configurations and precision manufacturing promises to address these limitations. Thermo-acoustic refrigeration represents a groundbreaking approach to sustainable cooling technology, with significant potential for global adoption across various sectors.</p>

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Design and manufacture of a thermo-acoustic refrigerator by applying high-amplitude sound waves to compress cooling agent: a review

  • 期刊论文

  • 发表日期：

    2025年9月6日

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  • Mohammed Abed,
  • Qais Abid Yousif

摘要

Thermo-acoustic refrigeration (TAR) leverages high-amplitude sound waves to create temperature gradients for cooling, offering an environmentally friendly alternative to conventional refrigeration systems. By eliminating the need for harmful refrigerants, TAR significantly reduces greenhouse gas emissions while achieving higher energy efficiency with coefficients of performance (COP) ranging from 1.5 to 2.2. Advances in material selection, such as porous ceramics for stacks and graphene-coated copper for heat exchangers, have enhanced thermal conductivity and system durability. Design innovations, including honeycomb stack geometries and hybrid gas mixtures like helium-argon, have further optimized cooling power and operational efficiency. Experimental validations closely align with theoretical predictions, supporting the practical application of TAR for industrial, residential, and portable use. While challenges such as acoustic losses, material costs, and scalability remain, ongoing research in hybrid configurations and precision manufacturing promises to address these limitations. Thermo-acoustic refrigeration represents a groundbreaking approach to sustainable cooling technology, with significant potential for global adoption across various sectors.