Termodinamička i transportna svojstva biodizela i njihovih smješa sa dizel gorivom na visokim pritiscima

Abstract

U doktorskoj disertaciji je prikazano uspostavljanje nove aparature i uvođenja procedure za mjerenje gustina tečnosti na visokim pritiscima. Rad nove aparature se zasniva na upotrebi mjerne ćelije Anton Paar DMA HP i gustinomjera Anton Paar DMA 5000, koji služi za unošenje i očitavanje podataka. Kalibracija uređaja DMA HP je izvršena primjenom klasične metode u kojoj su kao kalibracioni fluidi korišćeni vakuum, voda i n-dekan. Da bi se ispitale mogućnosti preciznog mjerenja korišćenjem nove aparature mjerene su gustine n-heksana, toluena i dihlor-metana u temperaturnom opsjegu 288.15-413.15 K na pritiscima 0.1-60 MPa...

In the doctoral dissertation the establishment of a new apparatus and the introduction of the procedure for the high pressure density measurements in the compressed liquid regions was presented. The operation of the apparatus is based on the use of the Anton Paar DMA HP density measuring cell and the Anton Paar DMA 5000 densimeter as reading device. Calibration of DMA HP device was performed by applying the classical method where a vacuum, water and n-decane were used as calibration fluids. In order to examine the possibilities for accurate measurements using the new apparatus, the densities of n-hexane, toluene and dichloromethane were measured in the temperature interval 288.15-413.15 K and at the pressure range 0.1-60 MPa...