Abstract
The growing importance of the issues for sustainable development requires the consideration of environmental criteria in the development of all new materials and equipment. In the case of dielectric liquid, a better balance must be found between technical performance within the filled equipment and the impact on the environment always possible leaks. In transformers, a stable liquid, inert, with good electrical and thermal properties is necessary; outside, the liquid must be non-toxic to the environment and readily biodegradable. The intrinsic properties of natural vegetable oils in terms of fire resistance, environmental performance and electrical and thermal characteristics of dielectric compositions are particularly useful products in the field of electrical engineering. The objective of our work was to make a comparative study of different vegetable oils: Argan, Rapeseed, Sunflower and analyze the behavior of the electrical resistivity and viscosity as a function of temperature. This study may be useful for a possible application of these oils in technology. Key words: Electrical resistivity, viscosity, vegetable oil, electrotechnical.
Highlights
The environmental impact of human activity causes increasing concern: the situation is worst between climate problems, pollution, overexploitation of resources and individual consumption, which are continually increasing
We must ensure that the consumption of vegetable oils for these new applications does not disturb the balance of existing networks, in particular those related to human
The diagram of the cell used to measure the electrical resistivity is shown in Figure 1a and b
Summary
The environmental impact of human activity causes increasing concern: the situation is worst between climate problems, pollution, overexploitation of resources and individual consumption, which are continually increasing. These developments make it necessary to consider practical and compatible solutions with sustainable development (Bozell and Patel, 2006). The principles of green chemistry tend to more environmentally friendly processes for the synthesis of the environment and the use of renewable raw materials (Baumann et al, 1988). Industrials (and financials) have logically turned to the substitution of fossil fuels with renewable raw materials, such as vegetable oils for biofuel sector. We must ensure that the consumption of vegetable oils for these new applications does not disturb the balance of existing networks, in particular those related to human
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