Scholarlink

<p>One approach to enhance heat transfer in numerous thermal applications is the utilization of nanofluids, including heat exchangers. Due to their importance in industrial, food and sanitary applications, nanofluids have been extensively used in heat exchangers, especially double-tube exchangers, due to their effectiveness. Therefore, this critical review targets the studies that used nanofluids of TiO<sub>2</sub> in double-pipe heat exchangers to transfer heat in such heat exchangers. In addition, this review provides all the mathematical and most of the correlation equations employed to calculate the parameters of the double-pipe heat exchangers for parallel and counterflow, as well as a general view of the properties of nanofluids (physical and thermal). After a focused and comparative literature review, it is obvious that using TiO₂ nanofluid compared to the base fluid enhances heat transfer. However, compared to other kinds, it can be said that this nanofluid is only superior to SiO₂ nanofluid. Therefore, its use in relevant future studies and applications is not strongly recommended. This review acknowledges the potential bias and limitations inherent in relying solely on secondary data and encourages experimental validation in future studies.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Critical review of the use of TiO₂ nanofluid as a heat transfer fluid in the double-pipe heat exchanger

  • 期刊论文

  • 发表日期：

    2025年7月23日

查看全文
  • Saif Ali Kadhim,
  • Osama Abd Al-Munaf Ibrahim,
  • Moafaq K. S. Al-Ghezi,
  • Ali M. Ashour

摘要

One approach to enhance heat transfer in numerous thermal applications is the utilization of nanofluids, including heat exchangers. Due to their importance in industrial, food and sanitary applications, nanofluids have been extensively used in heat exchangers, especially double-tube exchangers, due to their effectiveness. Therefore, this critical review targets the studies that used nanofluids of TiO2 in double-pipe heat exchangers to transfer heat in such heat exchangers. In addition, this review provides all the mathematical and most of the correlation equations employed to calculate the parameters of the double-pipe heat exchangers for parallel and counterflow, as well as a general view of the properties of nanofluids (physical and thermal). After a focused and comparative literature review, it is obvious that using TiO₂ nanofluid compared to the base fluid enhances heat transfer. However, compared to other kinds, it can be said that this nanofluid is only superior to SiO₂ nanofluid. Therefore, its use in relevant future studies and applications is not strongly recommended. This review acknowledges the potential bias and limitations inherent in relying solely on secondary data and encourages experimental validation in future studies.