Time filter

Source Type

Ipoh, Malaysia

Universiti Teknologi PETRONAS is a Malaysian private university. It was established on 10 January 1997. The campus is built on a 400 hectare site strategically located at Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia. The university is a wholly owned subsidiary of PETRONAS, the national oil company of Malaysia.UTP places strong emphasis on Research and Development as it strives to achieve the status of an internationally renowned Research University. The university conducts extensive research activities in collaboration with PETRONAS and other institutions and industries locally and abroad focusing on Enhanced Oil Recovery, Carbon Dioxide Management, Deepwater Technology, Nanotechnology, Green Technology, Biomedical Technology, Hybrid Energy Systems, Intelligent Cities and Sustainable Resources. This is evident when UTP was awarded a 5-star rating by Malaysian Research Assessment Instrument for its research, development and commercialisation efforts recently.In recent years, UTP is ranked in the top 200 in the 2014 Quacquarelli Symonds World University Ranking by subject for Chemical Engineering. UTP is the only private university in Malaysia to be ranked in the top 200 for the 2014 QS Asia University Rankings and ranked at 335 for the QS World University Rankings under Engineering and Technology Faculty. Wikipedia.

The unsteady laminar free convection flow between two long vertical parallel plates with ramped wall temperature at one boundary has been investigated in the presence of thermal radiation and chemical species concentration. The exact solutions of the momentum, energy and concentration equations have been obtained using the Laplace transform technique. The velocity and temperature profiles, skin-friction and Nusselt number variations are shown graphically and the numerical values of the volume flow rate, the total heat rate and species rate added to the fluid are presented in a table. The influence of different system parameters such as the radiation parameter (R), buoyancy ratio parameter (N), Schmidt number (Sc) and time (t ) has been analyzed carefully. A critical analysis of the coupled heat and mass transfer phenomena is provided. The free convective flow due to ramped wall temperature has also been compared with the baseline case of flow due to constant wall temperature. © Springer Science+Business Media B.V. 2012.

Khor C.S.,Petronas University of Technology | Lalchand G.,Jalan Terasek Dua
Renewable and Sustainable Energy Reviews | Year: 2014

This review focuses on energy for grid-connected electricity generation for West (Peninsular) Malaysia. A historical perspective of Malaysia′s energy policies and energy-related initiatives is first provided, which sets the scene for an assessment of current situation in the country. We recommend a number of sustainable options for addressing the projected energy deficits in Malaysia up to year 2030, besides meeting the drive for low carbon systems and technologies. The latter is in direct response to an announcement by the Prime Minister of Malaysia on a conditional voluntary target of 40% reduction in the emissions intensity per unit of GDP by 2020 from a 2005 baseline at the COP15 meeting in Copenhagen. Alternative strategies are suggested that promote enhanced roles for renewable energy (RE) as well as energy efficiency and conservation (EE&C) practices based on a review of past and present policies and current developments. A greater contribution of RE from biomass, biogas, hydroelectric power, and solar photovoltaic is proposed compared to the present less than 1%, in concert with continuous more widespread adoption of EE&C initiatives. Strategies are also advocated to improve coal supply reliability and security. On top of these measures, the Malaysian government is urged to moderate energy subsidies while enforcing a common energy regulatory framework that involve all relevant agencies and parties. © 2013 Elsevier Ltd.

Elmolla E.S.,Al - Azhar University of Egypt | Chaudhuri M.,Petronas University of Technology
Journal of Hazardous Materials | Year: 2011

The study examined combined photo-Fenton-SBR treatment of an antibiotic wastewater containing amoxicillin and cloxacillin. Optimum H 2O 2/COD and H 2O 2/Fe 2+ molar ratio of the photo-Fenton pretreatment were observed to be 2.5 and 20, respectively. Complete degradation of the antibiotics occurred in one min. The sequencing batch reactor (SBR) was operated at different hydraulic retention times (HRTs) with the wastewater treated under different photo-Fenton operating conditions (H 2O 2/COD and H 2O 2/Fe 2+ molar ratio). The SBR performance was found to be very sensitive to BOD 5/COD ratio of the photo-Fenton treated wastewater. Statistical analysis of the results indicated that it was possible to reduce the Fe 2+ dose and increase the irradiation time of the photo-Fenton pretreatment. The best operating conditions of the combined photo-Fenton-SBR treatment were observed to be H 2O 2/COD molar ratio 2, H 2O 2/Fe 2+ molar ratio 150, irradiation time 90min and HRT of 12h. Under the best operating conditions, 89% removal of sCOD with complete nitrification was achieved and the SBR effluent met the discharge standards. © 2011 Elsevier B.V.

El-Khatib N.A.F.,Petronas University of Technology
SPE Journal | Year: 2012

A mathematical model is developed for performance prediction of waterflooding performance in communicating stratified reservoirs with a dip angle from the horizontal. The effect of the gravitational force is reflected by a dimensionless gravity number in the fractional flow formula. The gravity number accounts for the dip angle and the density difference between the displacing and displaced fluids. The developed fractional flow formula is used to estimate the fractional oil recovery, the dimensionless time, and the injectivity ratio at times of water breakthrough in the successive layers. The developed model allows for each layer to have its own porosity, endpoint saturations, and endpoint relative permeabilities. Solutions for the waterflooding performance in inclined communicating stratified systems with log-normal permeability distribution were obtained and compared with that of the horizontal systems. The effects of the gravity number, the mobility ratio, and the Dykstra-Parsons permeability-variation coefficient V DP on the performance were investigated. The obtained results showed that the gravity effect of the dip angle enhances the performance in terms of delayed water breakthrough, higher fractional oil recovery, and lower water cut. This improved performance is more significant in the cases of unfavorable mobility ratio and of highly heterogeneous reservoirs. Reservoir dipping does not affect the pseudorelative permeability functions but results in a decrease in the injectivity ratio. Copyright © 2012 Society of Petroleum Engineers.

Nasrifar K.,Petronas University of Technology
Industrial and Engineering Chemistry Research | Year: 2013

A simplified hard-chain dimer theory is employed with perturbed-chain statistical associating fluid theory (PC-SAFT) in calculating the vapor pressures and saturated liquid volumes of pure n-alkanes from methane to n-eicosane. Compared to the original PC-SAFT, the developed model is in better agreement with the experimental vapor pressures and saturated liquid volumes of n-alkanes along the vapor-liquid coexistence curve and the critical properties from n-butane toward longer n-alkanes. Predicting the vapor-liquid equilibria (VLE) of binary mixtures containing methane and a long-chain n-alkane, the new model describes the mixtures more accurately than PC-SAFT. With no binary interaction parameter, the model adequately describes the experimental VLE data, in particular, near the critical points. In the prediction of the VLE of mixtures containing ethane, propane, n-hexane, and a long-chain n-alkane, the differences between the two models become less appreciable. © 2013 American Chemical Society.

Discover hidden collaborations