[01] Jamal Sadeghi, Department of Petroleum Engineering, Marvdasht branch, Islamic Azad University, Marvdasht, Iran. [02] Farshad Farahbod, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.

In this paper, the tests are designed for investigation of the effects of the synthesized oxide molybdenum nano particle prepared by ultrasonic on the crude oil flowing properties. Rheological and thermal properties of crude oil with nano particle are surveyed, experimentally. Nano particles which are prepared with method of ultrasonic are applied in crude. Experiments are held in heated tube section for both simple oil and nano oil which contains nano molybdenum oxide. Addition of nano molybdenum oxide from 1 wt% to 4wt% increases the value of overall heat transfer coefficient about 1.5 times. Also the increase of nano particle from 1 wt% to 11 wt% increases the value of conductive heat transfer coefficient about 2.47 times.

Rheology, Crude Oil, Heat Properties, Ultra-sonic, Nano Particles

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