Abstract

Therminol is a thermally stable heat transfer fluid with a high boiling point and low vapor pressure. Boosting the heat conductivity of therminol is a potential way for increasing the efficacy of therminol-based systems. It will improve performance while compensating for the drawback of poor thermal system performance. Nanofluids are believed to be more efficient than traditional fluids. In this study, experiments were conducted to examine the thermal properties of therminol, including thermal conductivity and viscosity, when a Lanthanum Oxide-Barium Oxide (LaO-BaO) nanocomposite was dispersed in it. LaO-BaO nanocomposite was created via chemical co-precipitation route. Structural and optical characteristics of the nanosamples were investigated using X-ray diffraction (XRD) and UV-visible spectroscopy. Therminol was used as the base fluid in the fabrication of LaO-BaO-based nanofluid. When compared to the base fluid, therminol; the nanofluid exhibits a considerable shift in heat conductivity and viscosity. To assess the potential changes in the thermal conductivity of the base fluid, thorough tests were carried out at various temperatures and weight percentages of LaO-BaO nanocomposites. The results suggest that LaO-BaO nanofluids are a superior substitute against other regular fluids in heat transfer applications.

中文翻译：

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具有增强热工程应用的氧化镧-氧化钡纳米流体

摘要

Therminol 是一种热稳定传热流体，具有高沸点和低蒸气压。提高Therminol 的导热率是提高Therminol 系统效率的潜在方法。它将提高性能，同时弥补热系统性能差的缺点。纳米流体被认为比传统流体更有效。在这项研究中，当氧化镧-氧化钡（LaO-BaO）纳米复合材料分散在Therminol中时，进行了实验以检查其热性能，包括导热率和粘度。 LaO-BaO 纳米复合材料是通过化学共沉淀法制备的。使用 X 射线衍射 (XRD) 和紫外-可见光谱研究了纳米样品的结构和光学特性。 Therminol 用作 LaO-BaO 基纳米流体制造中的基液。与基础液相比，Therminol；纳米流体在导热率和粘度方面表现出相当大的变化。为了评估基液热导率的潜在变化，在不同温度和 La2O-BaO 纳米复合材料的重量百分比下进行了彻底的测试。结果表明，在传热应用中，LaO-BaO 纳米流体是其他常规流体的优异替代品。