Abdul Aziz - Academia.edu (original) (raw)

Papers by Abdul Aziz

Research paper thumbnail of Oxidative mineralisation of petroleum refinery effluent using Fenton-like process

Chemical Engineering Research & Design, 2000

Petroleum refinery effluents (PREs) are wastewaters characterised by high values of chemical oxyg... more Petroleum refinery effluents (PREs) are wastewaters characterised by high values of chemical oxygen demand (COD) and total organic carbon (TOC). Mineralisation of PRE is not commonly reported. For Fenton oxidation, in particular, reported PRE mineralisation is low. In this paper, treatability of a petroleum refinery effluent using a Fenton-like oxidative reaction is described. A statistically designed experimental matrix was used

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Research paper thumbnail of Quantitative risk assessment for the transport of ammonia by rail

Process Safety Progress, 2009

Risk assessments are considered to be an essential tool in ensuring the safety of engineering pro... more Risk assessments are considered to be an essential tool in ensuring the safety of engineering projects. The benefits of using risks assessments have prompted its acceptance in the safety legislation for a number of industries. The use of quantitative risk assessment for rail transportation of hazardous materials has gained more attention in recent years, because the amount of the transported hazardous materials is large, and the transportation route often passes through populated areas, such as cities. In this study, the risk for the ammonia transportation by rail in Malaysia was conducted by combining the results from a previous failure frequency analysis and consequence analysis. The assessment results acknowledged the significant effects of train speeds on the overall individual risk. The risk with a tolerable risk limit of 1 × 10−6 per year increased significantly with more train accidents occurring at increasing speeds. Most of the surrounding populations along the transportation route analyzed are exposed to higher risk levels than the tolerable limit. This risk exposure to the public demonstrates the need for proper planning of moving ammonia through populated areas. © 2009 American Institute of Chemical Engineers Process Saf Prog, 2010

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Research paper thumbnail of Opinion and Debate Shall We become vegetarian to minimize the risk of Coronary Heart Disease?

compared with the vegetarians was 1.5 (95% CI 1.3-1.7) in men and 1.4 (95% CI 1.2-1.6) in women .... more compared with the vegetarians was 1.5 (95% CI 1.3-1.7) in men and 1.4 (95% CI 1.2-1.6) in women .Moreover, there was clear evidence of a dose response, in that there was a significant trend of an increasing risk as the consumption increased. A combined data for 76172 men and women from 5 prospective studies to compare the death rates from

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Research paper thumbnail of Research Note EFFECT OF PLANTING DISTANCE ON TREE GROWTH AND FRUIT QUALITY OF SHAMBER GRAPE FRUIT UNDER AGRO CLIMATIC CONDITIONS OF SARGODHA

A study was carried out at Citrus Research Station, Sargodha, during 2002-2004 on the planting de... more A study was carried out at Citrus Research Station, Sargodha, during 2002-2004 on the planting density of grape fruit, (Shamber). Three planting densities of grapefruit (7.0 x 7.07, 7.0 x 3.5 and 3.5 x 3.5 m) were studied. It revealed that plant height was positively correlated with planting distance, whereas plant spread did not respond at all. Maximum yield per

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Research paper thumbnail of Analysis of Entropy Generation and Thermal Stability in a Slab

Journal of Thermophysics and Heat Transfer, 2010

ABSTRACT

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Research paper thumbnail of Unique Analysis for Cascaded Rectangular–Triangular Fins with Convection–Radiation Transport

Journal of Thermophysics and Heat Transfer, 2013

ABSTRACT Adouble-differential transform method has been used to analyze a cascaded rectangular-tr... more ABSTRACT Adouble-differential transform method has been used to analyze a cascaded rectangular-triangular fin losing heat by simultaneous convection and radiation to its surroundings. The base of the fin is heated by convection by a hot fluid at a uniform temperature. The thermal conductivity of the fin material assumed to be a linear function of temperature. An exact analytical solution is developed for a pure convection cascaded rectangular-triangular fin of constant thermal conductivity. Results are presented for the temperature distribution for a range of dimensionless parameters governing the problem. Both single- and two-material cascaded rectangular-triangular fins are analyzed. An optimization study has been performed to establish data for optimum heat transfer rate, cold fluid Biot number, fin efficiency, and fin effectiveness. If properly designed, a cascaded rectangular-triangular fin can be more effective than a rectangular or a triangular fin. Copyright © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

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Research paper thumbnail of Effect of Relative Humidity on the Ripening Behaviour and Quality of Ethylene Treated Banana Fruit

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Research paper thumbnail of Oxidative mineralisation of petroleum refinery effluent using Fenton-like process

Chemical Engineering Research & Design, 2000

Petroleum refinery effluents (PREs) are wastewaters characterised by high values of chemical oxyg... more Petroleum refinery effluents (PREs) are wastewaters characterised by high values of chemical oxygen demand (COD) and total organic carbon (TOC). Mineralisation of PRE is not commonly reported. For Fenton oxidation, in particular, reported PRE mineralisation is low. In this paper, treatability of a petroleum refinery effluent using a Fenton-like oxidative reaction is described. A statistically designed experimental matrix was used

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Research paper thumbnail of Quantitative risk assessment for the transport of ammonia by rail

Process Safety Progress, 2009

Risk assessments are considered to be an essential tool in ensuring the safety of engineering pro... more Risk assessments are considered to be an essential tool in ensuring the safety of engineering projects. The benefits of using risks assessments have prompted its acceptance in the safety legislation for a number of industries. The use of quantitative risk assessment for rail transportation of hazardous materials has gained more attention in recent years, because the amount of the transported hazardous materials is large, and the transportation route often passes through populated areas, such as cities. In this study, the risk for the ammonia transportation by rail in Malaysia was conducted by combining the results from a previous failure frequency analysis and consequence analysis. The assessment results acknowledged the significant effects of train speeds on the overall individual risk. The risk with a tolerable risk limit of 1 × 10−6 per year increased significantly with more train accidents occurring at increasing speeds. Most of the surrounding populations along the transportation route analyzed are exposed to higher risk levels than the tolerable limit. This risk exposure to the public demonstrates the need for proper planning of moving ammonia through populated areas. © 2009 American Institute of Chemical Engineers Process Saf Prog, 2010

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Research paper thumbnail of Opinion and Debate Shall We become vegetarian to minimize the risk of Coronary Heart Disease?

compared with the vegetarians was 1.5 (95% CI 1.3-1.7) in men and 1.4 (95% CI 1.2-1.6) in women .... more compared with the vegetarians was 1.5 (95% CI 1.3-1.7) in men and 1.4 (95% CI 1.2-1.6) in women .Moreover, there was clear evidence of a dose response, in that there was a significant trend of an increasing risk as the consumption increased. A combined data for 76172 men and women from 5 prospective studies to compare the death rates from

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Research paper thumbnail of Research Note EFFECT OF PLANTING DISTANCE ON TREE GROWTH AND FRUIT QUALITY OF SHAMBER GRAPE FRUIT UNDER AGRO CLIMATIC CONDITIONS OF SARGODHA

A study was carried out at Citrus Research Station, Sargodha, during 2002-2004 on the planting de... more A study was carried out at Citrus Research Station, Sargodha, during 2002-2004 on the planting density of grape fruit, (Shamber). Three planting densities of grapefruit (7.0 x 7.07, 7.0 x 3.5 and 3.5 x 3.5 m) were studied. It revealed that plant height was positively correlated with planting distance, whereas plant spread did not respond at all. Maximum yield per

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Research paper thumbnail of Analysis of Entropy Generation and Thermal Stability in a Slab

Journal of Thermophysics and Heat Transfer, 2010

ABSTRACT

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Research paper thumbnail of Unique Analysis for Cascaded Rectangular–Triangular Fins with Convection–Radiation Transport

Journal of Thermophysics and Heat Transfer, 2013

ABSTRACT Adouble-differential transform method has been used to analyze a cascaded rectangular-tr... more ABSTRACT Adouble-differential transform method has been used to analyze a cascaded rectangular-triangular fin losing heat by simultaneous convection and radiation to its surroundings. The base of the fin is heated by convection by a hot fluid at a uniform temperature. The thermal conductivity of the fin material assumed to be a linear function of temperature. An exact analytical solution is developed for a pure convection cascaded rectangular-triangular fin of constant thermal conductivity. Results are presented for the temperature distribution for a range of dimensionless parameters governing the problem. Both single- and two-material cascaded rectangular-triangular fins are analyzed. An optimization study has been performed to establish data for optimum heat transfer rate, cold fluid Biot number, fin efficiency, and fin effectiveness. If properly designed, a cascaded rectangular-triangular fin can be more effective than a rectangular or a triangular fin. Copyright © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

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Research paper thumbnail of Effect of Relative Humidity on the Ripening Behaviour and Quality of Ethylene Treated Banana Fruit

fspublishers.org

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