Experimental Study of the Characteristics of Transformer Oil and Some Selected Vegetable Oils

2016 ◽  
Vol 23 ◽  
pp. 13-23 ◽  
Author(s):  
Omokhafe James Tola ◽  
Adamu Murtala Zungeru ◽  
F.O. Usifo ◽  
Ambafi James Garba
Keyword(s):  
Vegetable Oils ◽  
Seed Oil ◽  
Energy Requirement ◽  
Palm Kernel ◽  
Mineral Oil ◽  
Standard Test ◽  
Transformer Oil ◽  
Rubber Seed Oil ◽  
Oil Resources ◽  
Petroleum Oil

The world’s energy requirement has been dominated by petroleum oil resources for years in many applications, especially in the area of electricity generation and utilization. Mineral oil application in power system equipment can be potentially hazardous to the environment, especially when there are incidents of transformer explosion, which caused spillages of oil to the soils or water streams and thereby pollute the surrounding environments. This paper is aimed at finding a substitute for the use of mineral oil as transformer oil. Experiments on breakdown voltages, flash points, pour points, viscosities, densities and insulation resistances on conventional mineral oil and some selected vegetable oils were conducted, analyzed and compared to the internationally accepted standards, ASTM (America Standard Test of Material). Rubber seed oil, Palm oil, Mellon oil, Ground oil and Palm kernel oil were found to have good electrical, chemical and thermal properties which the transformer oil has.

scholarly journals Performance evaluation of rubber seed oil based cutting fluid in turning mild steel

2021 ◽  
Vol 40 (4) ◽  
pp. 648-659
Author(s):  
A.O. Osayi ◽  
S.A. Lawal ◽  
M.B. Ndaliman ◽  
J.B. Agboola
Keyword(s):  
Surface Roughness ◽  
Seed Oil ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Mineral Oil ◽  
Cutting Fluid ◽  
Depth Of Cut ◽  
Rubber Seed Oil ◽  
Water Emulsion ◽  
Rubber Seed

Due to the negative effects associated with the wide use of mineral oil, the desire for eco-friendly cutting fluids as alternative to mineral oil has become a global issue. In this study, rubber seed oil was used to formulate oil-in-water emulsion cutting fluid. Full factorial design was used for the formulation of the oil-in-water emulsion cutting fluid. The optimal process parameters obtained were used for the formulation of the novel cutting fluid and the cutting fluid was characterised. The characteristics of the formulated cutting fluid shows viscosity of 4.25 mm2/s, pH value of 8.3, high stability and corrosion resistant. Box-Behnken design was used for the turning operation and the performance of the rubber seed oil cutting fluid was compared with mineral oil. The input parameters were cutting speed, feed rate and depth of cut, while the responses were surface roughness and cutting temperature. Coated carbide insert was used as cutting tool. The ANOVA results show that the feed rate had the most significant effect on the surface roughness and cutting temperature followed by the cutting speed and depth of cut during the turning process. It was observed that the rubber seed oil based cutting fluid reduced surface roughness and cutting temperature by 9.79% and 1.66% respectively and therefore, it can be concluded that the rubber seed oil based cutting fluid performed better than the mineral oil in turning of mild steel.

Determining Electrical Properties of Different Type of Mineral Oil Mixtures

2017 ◽  
Vol 6 (3) ◽  
pp. 544 ◽  
Author(s):  
Muhammad Bin Yahya ◽  
Alan Jaynoe Caeser anak Tening
Keyword(s):  
Olive Oil ◽  
Sunflower Oil ◽  
Test Procedure ◽  
Mineral Oil ◽  
Standard Test ◽  
Transformer Oil ◽  
Mineral Oils ◽  
Oil Mixtures ◽  
Transformer Insulation ◽  
Relationship Of

<p>This paper is written to show comparison between the naphthenic mineral oil with namely olive oil and sunflower oil in the context of voltage breakdown as insulating transformer oil. Olive oil is known to have been tested as alternative oil for transformer insulation and sunflower oil is a new oil being tested in this paper. The oils are mixed within certain ratios in order to determine the withstand breakdown voltages. The relationship of the breakdown voltages are also tied with the viscosity of the mixtures, and the mixture of oils are also exposed to ageing test and of tan-delta balancing test. All test follow IEC60156 standard test procedure for liquid insulation test. The mixtures were compared to the existing mineral oils and the findings will be discussed.</p>

SOYBEAN OIL PLASTICIZERS AS REPLACEMENT OF PETROLEUM OIL IN RUBBER

2013 ◽  
Vol 86 (2) ◽  
pp. 233-249 ◽  
Author(s):  
Zoran S. Petrović ◽  
Mihail Ionescu ◽  
Jelena Milić ◽  
James R. Halladay
Keyword(s):  
Soybean Oil ◽  
Vegetable Oils ◽  
Cationic Polymerization ◽  
Dynamic Properties ◽  
Mineral Oil ◽  
Cross Linking ◽  
Double Bonds ◽  
Soybean Oils ◽  
Molecular Weights ◽  
Petroleum Oil

ABSTRACT Polymerized soybean oils of different molecular weights were used as plasticizers in NR/SBR compositions. The oils of different molecular weights and viscosities were synthesized by cationic polymerization using a proprietary technology. Because vegetable oils have double bonds, they are not only viscosity depressants but also active participants in cross-linking reactions. Properties of elastomers extended with different concentrations of mineral oil or pure soybean oil were compared with elastomers extended by polymerized oils of different molecular weights at the same concentrations. It was found that polymerized soybean oil could be substituted for naphthenic process oil with minimal differences in mechanical and dynamic properties.

scholarly journals Study on Breakdown Voltage for Vegetable Oils With Additive TiO2

2018 ◽  
Vol 12 (1) ◽  
pp. 175 ◽  
Author(s):  
Muhammad Bin Yahya ◽  
Raja Muhammad Khidir Raja Chik
Keyword(s):  
Breakdown Voltage ◽  
Vegetable Oils ◽  
High Voltage ◽  
Coconut Oil ◽  
Mineral Oil ◽  
Transformer Oil ◽  
Experimental Result ◽  
Distribution Transformers ◽  
Sample Data ◽  
Before And After

High voltage power transformers commonly used petroleum-based mineral oil for cooling and insulation purposes. Researchers are looking for suitable vegetable oils as alternatives to mineral oil to be used as transformer oil. The alternative vegetable oils are biodegradable, non-toxic and environmentally friendly. They may require some processing and modification to improve some of their properties to ascertain their safe use in power and distribution transformers as well as in high voltage equipment. This paper presents a study on the AC breakdown voltages of Palm Oil (PO) and Coconut Oil (CO) with presence of an additive. PO and CO are chosen as they are locally produced oils in Malaysia and easily obtained. The type of additive used in this study is Titanium dioxide TiO<sub>2</sub>. TiO<sub>2</sub> nanoparticles was added into PO and CO at volume concentration of 0.1% to 0.5%. The effect of different gap distance of electrode 1.5mm, 2.5mm and 3.5mm was studied. The temperature of oil is controlled at 30<sup>o</sup>C. This paper provides a comparative assessment of breakdown properties through experimental investigation of PO and CO before and after the additive is added according to ASTM D1816 standard. From the experimental result, the PO have slightly higher breakdown voltage compared to CO. From all oil sample data recorded, it can be concluded that the breakdown voltage had increased to the increase in gap distance of electrode under presence of TiO<sub>2</sub>.

scholarly journals EPOXIDATED RUBBER SEED OIL AND SOY AS EFFECTIVE MODIFIERS OF EPOXY POLYMERS

2019 ◽  
Vol 62 (9) ◽  
pp. 79-85
Author(s):  
Elena M. Gotlib ◽  
Thi Lan Anh Nguyen ◽  
Dmitry G. Miloslavskiy ◽  
Raisa A. Akhmedyanova
Keyword(s):  
Soybean Oil ◽  
Vegetable Oils ◽  
Seed Oil ◽  
Epoxidized Soybean Oil ◽  
Internal Stresses ◽  
Relaxation Processes ◽  
Epoxy Coatings ◽  
Rubber Seed Oil ◽  
Rubber Seed ◽  
Epoxy Polymers

The search for rational areas of industrial use of rubber seed oil for the countries of Southeast Asia, South America and Africa, where Hevea brasiliensis grows in vast areas, is of great practical and scientific interest, both from ecological, economic and technical points of view. In this regard, the studies of the preparation and the use of epoxidized rubber seed oil are important. Due to the presence of double bonds, this vegetable oil is relatively easily functionalized. The epoxidation of rubber seed oil was carried out by us with hydrogen peroxide under the conditions of interphase catalysis in the presence of tungsten-containing catalysts. Epoxidized vegetable oils are of great interest as reactive modifiers for epoxy-diane polymers. For comparison with ERSO, industrial epoxidized soybean oil was investigated. Modification by both epoxidized rubber seed oil and epoxidized soybean oil of epoxy compositions cured with amines of different chemical structure, causes a significant increase in their hardness, wear resistance and improved antifriction indicators. The content of the gel fraction is reduced, that is, the density of the cross-linked structure of epoxy coatings formed in the presence of epoxidized rubber seed oil and soybean oil, which are partially included in the structure, and partially perform the functions of plasticizing agents, decreases. A similar effect was found when epoxy polymers modifying with epoxidized palm trees oil. The decrease cross-linked density of epoxy polymers modified with epoxidized vegetable oils causes an increase in the mobility of the elements of the structure, due to the presence of flexible fragments in the modifiers. This greatly make easier the relaxation processes in the composition, which helps to reduce internal stresses and improve properties. Moreover, epoxidized soybean oil to a greater extent reduces wear and friction coefficient of epoxy coatings, compared with epoxidized rubber seed oil.

OPTIMISATION OF ENERGY AND MATERIALS IN ACID ESTERFICATION OF RUBBER SEED OIL THROUGH RSM AND ANN

2018 ◽  
Author(s):  
Jilse Sebastian ◽  
Vishnu Vardhan Reddy Mugi ◽  
C. Muraleedharan ◽  
Santhiagu A
Keyword(s):  
Seed Oil ◽  
Rubber Seed Oil ◽  
Rubber Seed
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