Improving the Thermo-Physical Properties of Plam Oil with Zeolite Nanoparticles

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2024-03-25 DOI:10.4028/p-6dmet0

P. Assawasaengrat, Thanasuta Limsakul, Penpichcha Bunprasert, Wasan Chokelarb, Pongsert Sriprom

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Abstract

This research aimed to improve the thermo-physical properties of plam oil with NaA zeolite. Palm oil was selected for heating oil due to its high flash point and environmental friendliness compared to synthetic or mineral oil. The effect of NaA zeolite concentration suspended in palm oil was investigated in terms of the specific heat capacity (Cp), viscosity (μ), viscosity index (VI), thermal analysis (TGA) and density (ρ) of palm oil. The NaA zeolite was synthesized by crystallization technique, and X-ray diffraction analysis was performed to determine NaA zeolite crystallinity. The size of NaA zeolite was measured using a particle size analyzer. The average size of the synthesized NaA zeolite was 4767 nm. After grinding process for 180 min, the average size of zeolite decreased to 632 nm. An average 632 nm NaA zeolite particle size was added to palm oil at 0.25, 0.5, 0.75 and 1 wt%. The results showed that when the NaA zeolite concentration increased, the nanofluid’s viscosity at 40 °C and 100 °C was increased. The addition of 1 wt% NaA zeolite resulted in the nanofluid having a maximum viscosity of 41.31 and 8.47 cSt at 40 °C and 100 °C, respectively. The highest viscosity index was 195 cSt when added with 0.5 wt% NaA zeolite. The density of palm oil slightly increased with increasing NaA zeolite concentrations. The specific heat capacity of palm oil increased when NaA zeolite was added. The results showed that NaA zeolite allowed palm oil to store heat energy better than palm oil, enabling it to release and absorb more heat during heat transfer. Thermogravimetric analysis, palm oil initiated to degrade at 263 °C, while the addition NaA zeolite in palm oil indicated that palm oil initiated to degrade at 350 °C. The shift in the degradation curve demonstrated that the nanofluid could withstand high temperatures. Adding NaA zeolite to palm oil showed that palm oil could endure more heat and has a long service life.

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用沸石纳米颗粒改善 Plam 油的热物理性质

这项研究旨在利用 NaA 沸石改善棕榈油的热物理性质。与合成油或矿物油相比，棕榈油闪点高且环保，因此被选为加热油。研究了悬浮在棕榈油中的 NaA 沸石浓度对棕榈油比热容（Cp）、粘度（μ）、粘度指数（VI）、热分析（TGA）和密度（ρ）的影响。通过结晶技术合成了 NaA 沸石，并进行了 X 射线衍射分析以确定 NaA 沸石的结晶度。使用粒度分析仪测量了 NaA 沸石的粒度。合成的 NaA 沸石的平均粒度为 4767 nm。经过 180 分钟的研磨过程后，沸石的平均粒度减小到 632 nm。将平均粒径为 632 nm 的 NaA 沸石以 0.25、0.5、0.75 和 1 wt% 的比例添加到棕榈油中。结果表明，当 NaA 沸石浓度增加时，纳米流体在 40 °C 和 100 °C 时的粘度增加。添加 1 wt% NaA 沸石后，纳米流体在 40 °C 和 100 °C 时的最大粘度分别为 41.31 和 8.47 cSt。添加 0.5 wt% NaA 沸石时，最高粘度指数为 195 cSt。随着 NaA 沸石浓度的增加，棕榈油的密度略有增加。添加 NaA 沸石后，棕榈油的比热容增加。结果表明，NaA 沸石能比棕榈油更好地储存热能，使其在传热过程中释放和吸收更多的热量。热重分析显示，棕榈油在 263 °C 开始降解，而在棕榈油中添加 NaA 沸石后，棕榈油在 350 °C 开始降解。降解曲线的变化表明纳米流体可以承受高温。在棕榈油中添加 NaA 沸石表明，棕榈油可以承受更多的热量，使用寿命更长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.

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