Thermal properties of nanoliquids prepared on the basis of natural ester modified by nanoparticles TiO₂ and C₆₀

• Autorzy: Dombek G.
• Języki publikacji: EN

Abstrakty

EN

In this paper the results of the researches concerning thermal properties of insulting nanoliquids received on the basis of natural ester, titan dioxide TiO₂ and fullerene C₆₀ were presented. Thermal conductivity, viscosity, density and specific heat are these thermal properties. The range of the temperature was changing from 25°C to 80°C. These properties are crucial from the viewpoint of heat transfer coefficient by insulating liquid used in insulating system of power equipment; thus, they influence on temperature distribution inside the equipment. The possibility of receiving steady nanoliquids was also analyzed. The impact of natural ester modification by nanoparticles and surfactant on thermal properties of received nanoliquids was proved.

Słowa kluczowe

EN

natural esters; thermal conductivity; viscosity; density; specific heat; high voltage power transformers; heat transfer coefficient; nanoliquids

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2015
• Tom: Vol. 13
• Strony: 404--413
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Dombek G.

• Poznań University of Technology 60 – 965 Poznań, ul. Piotrowo 3a

Bibliografia

• [1] Carlson A.S., Transforming history, ABB review, nr 03, 2007.
• [2] CIGRE Working Group A2.35: Experience in service with new insulating liquids, CIGRE Brochure No 436, October 2010.
• [3] Li J., Zhang Z., Zou P., Grzybowski S., Zahn M., Preparation of a vegetable oil-based nanofluids and investigation of its breakdown and dielectric properties, IEEE Electrical Insulation Magazine, volume 28 issue 5, p. 43-50, 2002.
• [4] Chiesa M., Das S. K., Experimental investigation of the dielectric and cooling performance of colloidal suspensions in insulating media, Colloid and surfaces A: Physicochemical and Engineering Aspects, 335, 88-97, 2009.
• [5] Aksamit P., Zmarzły D., Boczar T., Szmechta M., Aging properties of fullerene doped transformer oils, IEEE International Symposium on Electrical Insulation (ISEI), San Diego, p. 1-4, 2010.
• [6] Zmarzły D., Dobry D., Analysis of properties of aged mineral oil doped with C60 fullerens, IEEE Transactions on Dielectric and Electrical Insulation, Vol. 21, No. 3, p. 1119-1126, 2014.
• [7] Pugazhendhi S. C., Experimental evaluation on dielectric and thermal characteristics of nano filler added transformer oil, International Conference on High Voltage Engineering and Application (ICHVE), Shanghai, p. 207-2010, 2012.
• [8] Du Yue-fan, Ly Yu-zhen, Zhou Jian-quan, Chen Mu-tian, Li Xiao-xin, Li Cheng-rong, Effect of ageing on insulation property of mineral oil based TiO2 nanofluids, IEEE International Conference on Dielectric Liquids (ICDL), Trondheim, p. 1-4, 2011.
• [9] Rafiq M., Wei Wang, Ma K., You Zhou, Qi Wang, Chengrong Li, Yuzhen L. V., Insulating and aging properties of transformer oil based TiO2 nanofluids, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Des Moines, p. 457-461, 2014.
• [10] Choi C., Yoo H. S., Oh J. M., Preparation and heat transfer properties of nanoparticle in transformer oil dispersions as advanced energy efficient coolants, Current Applied Physics, Vol. 8, No. 6, pp. 710-712, 2008.
• [11] Du Y., Lv Y., Li C., Chen M., Zhomg Y., Zhou J., Li X., Zhou Y., Effect of semiconductive nanoparticles on insulating performances of transformer oil, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 19, No.3, pp. 770-776, 2012.
• [12] Zhong Y., Lv Y., Du, et al., Insulating properties and charge characteristics of natural ester fluid modified by TiO2 semiconductive nanoparticles, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 20, No. 1, pp. 135-140, 2013.
• [13] Siciński Z., Badanie materiałów elektroizolacyjnych, WNT, Warszawa. 1968.
• [14] Dombek G., Nadolny Z., Autorski układ do pomiaru przewodności cieplnej właściwej cieczy elektroizolacyjnych, Poznan University of Technology Academic Journal. Electrical Engineering, vol. 74, pp. 159-166, 2013.
• [15] Dombek G., Nadolny Z., The study of the selected thermal properties of natural esters that are used as insulation in transformers, Międzynarodowa konferencja transformatorowa „Transformator ‘13”, p. 20/13-20/22, Gdańsk, 2013.
• [16] Dombek G., Nadolny Z., Measurement of thermal conductivity coefficient of insulating liquids using authoring measurement system, Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, nr 1, str. 66-68, 2014.
• [17] Dombek G., Nadolny Z., Przybyłek P., Badanie czynników wpływających na zdolność cieczy elektroizolacyjnych do transport ciepła, Przegląd Elektrotechniczny, nr 10, str. 148-151, 2014.
• [18] PN-EN 3104:2004. Przetwory naftowe: Ciecze przezroczyste i nieprzezroczyste. Oznaczanie lepkości kinematycznej i obliczanie lepkości dynamicznej.
• [19] PN-EN ISO 3675. Ropa naftowa i ciekłe przetwory naftowe. Laboratoryjne oznaczenie gęstości. Metoda z areometrem.
• [20] ISO 649-1. Laboratory glassware – Density hydrometers for general purposes – Part 1: Specification.
• [21] www.labx.com/product/mettler-dsc