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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Status Of Biodiesel Research And Development In Pakistan, Abdul Aziz Abdul Raman
Status Of Biodiesel Research And Development In Pakistan, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Performance of biodiesel in engines is well established and biodiesel is currently adjudged as a low carbon fuel with the most potential of replacing fossil fuels. The fossil fuel sources are dwindling in Pakistan resulting in importation of about 8.1 million tonnes at approximately US$ 9.4 billion per annum. In the ambit of this justification, augmenting the energy scarce resources in Pakistan through intense harnessing of the varied biodiesel sources can adequately address the deficiency and can ensure energy security. Towards this end, the progress attained in biodiesel related researches in Pakistan are evaluated and presented with the view of …
The Viscosity Of Nontraditional Lightweight Completion Fluid At Elevated Temperature And Pressure, Abdul Aziz Abdul Raman
The Viscosity Of Nontraditional Lightweight Completion Fluid At Elevated Temperature And Pressure, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Experimental viscosity values of nontraditional lightweight completion fluid at pressure and temperature ranges of 0.1 MPa to 4.48 MPa, and of 25°C to 100°C, respectively, were reported. To establish the relationship among viscosity, pressure, and temperature, experimental data were fit to the modification of Mehrotra and Svrcek's equation. The result shows that the model could be used to describe the fluid viscosity over a wide range of pressure and temperature. The calculated what is sum of square error and root mean square error are 0.2135 and 0.08892, respectively. It is also shown that the predicted values from the model are …
Biodegradation Of Used Motor Oil In Soil Using Organic Waste Amendments, Abdul Aziz Abdul Raman
Biodegradation Of Used Motor Oil In Soil Using Organic Waste Amendments, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Soil and surface water contamination by used lubricating oil is a common occurrence in most developing countries. This has been shown to have harmful effects on the environment and human beings at large. Bioremediation can be an alternative green technology for remediation of such hydrocarbon-contaminated soil. Bioremediation of soil contaminated with 5% and 15% (w/w) used lubricating oil and amended with 10% brewery spent grain (BSG), banana skin (BS), and spent mushroom compost (SMC) was studied for a period of 84 days, under laboratory condition. At the end of 84 days, the highest percentage of oil biodegradation (92%) was recorded …
Enhanced Biodegradation Of Used Engine Oil In Soil Amended With Organic Wastes, Abdul Aziz Abdul Raman
Enhanced Biodegradation Of Used Engine Oil In Soil Amended With Organic Wastes, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Three organic wastes (banana skin (BS), brewery spent grain (BSG), and spent mushroom compost (SMC)) were used for bioremediation of soil spiked with used engine oil to determine the potential of these organic wastes in enhancing biodegradation of used oil in soil. The rates of biodegradation of the oil were studied for a period of 84 days under laboratory conditions. Hydrocarbon-utilizing bacterial counts were high in all the organic waste-amended soil ranging between 10.2 x 10(6) and 80.5 x 10(6) CFU/g compared to unamended control soil throughout the 84 days of study. Oil-contaminated soil amended with BSG showed the highest …
Viscosities And Densities Of Binary And Ternary Blends Of Palm Oil + Palm Biodiesel + Diesel Fuel At Different Temperatures, Abdul Aziz Abdul Raman
Viscosities And Densities Of Binary And Ternary Blends Of Palm Oil + Palm Biodiesel + Diesel Fuel At Different Temperatures, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Vegetable oil-based fuels are promising alternative fuels for diesel engines because of their environmental and strategic advantages. In this work, binary and ternary blends of palm oil, biodiesel, and diesel fuel were prepared, and dynamic viscosities and densities of blends were measured as functions of temperature. The binary and ternary blends demonstrate a temperature-dependent behavior, and viscosities and densities decreased nonlinearly and linearly with temperature, respectively. The evaluation of the measured viscosities of binary and ternary blends was completed, and the best correlation was obtained by a polynomial regression. © 2010 American Chemical Society.
Carbon Accounting Initiatives: Case Study Of A Petroleum Refinery In Malaysia To Prepare For Future Carbon Market, Abdul Aziz Abdul Raman
Carbon Accounting Initiatives: Case Study Of A Petroleum Refinery In Malaysia To Prepare For Future Carbon Market, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Petroleum refining process produces a large amount of atmospheric pollutants including greenhouse gases which are attributed to global warming. The international community inevitably addressed the global warming issue by introducing a market-based mechanism known as Emission Trading Systems (ETS) under the Kyoto Protocol which imposes binding limits to developed nations using three flexibility mechanisms, including the Clean Development Mechanism (CDM). © School of Engineering, Taylor's University College.
Density Of Jatropha Curcas Seed Oil And Its Methyl Esters: Measurement And Estimations, Abdul Aziz Abdul Raman
Density Of Jatropha Curcas Seed Oil And Its Methyl Esters: Measurement And Estimations, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Density data as a function of temperature have been measured for Jatropha curcas seed oil, as well as biodiesel jatropha methyl esters at temperatures from above their melting points to 90 ° C. The data obtained were used to validate the method proposed by Spencer and Danner using a modified Rackett equation. The experimental and estimated density values using the modified Rackett equation gave almost identical values with average absolute percent deviations less than 0.03% for the jatropha oil and 0.04% for the jatropha methyl esters. The Janarthanan empirical equation was also employed to predict jatropha biodiesel densities. This equation …
Effects Of Ultrasound In Coating Nano‐Precipitated Caco3 With Stearic Acid, Abdul Aziz Abdul Raman
Effects Of Ultrasound In Coating Nano‐Precipitated Caco3 With Stearic Acid, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Nano-Precipitated CaCO3 (NPCC) are coated with stearic acid to improve its dispersion in polymer as well as to reduce agglomeration. In this work, coating was done by wet method using ethanol. Ultrasonication was applied to NPCC to de-agglomerate micron size NPCC into smaller size. Effects of amplitude, temperature and energy input of ultrasonication was investigated. The amplitude was varied from 60% to 100% whereas temperature was varied from 5 ◦C to 45◦C. The energy input was stressed up from 3.6 kJ to 180 kJ. Mean diameter of NPCC were observed by using Particle Size Analyzer and Transmission Electron Microscopy (TEM). …