nazmi Ismail - Academia.edu (original) (raw)
Papers by nazmi Ismail
Entropy, 2021
Porous media burner (PMB) is widely used in a variety of practical systems, including heat exchan... more Porous media burner (PMB) is widely used in a variety of practical systems, including heat exchangers, gas propulsion, reactors, and radiant burner combustion. However, thorough evaluations of the performance of the PMB based on the usefulness of entropy generation, thermal and exergy efficiency aspects are still lacking. In this work, the concept of a double-layer micro PMB with a 23 mm cylindrical shape burner was experimentally demonstrated. The PMB was constructed based on the utilization of premixed butane-air combustion which consists of an alumina and porcelain foam. The tests were designed to cover lean to rich combustion with equivalence ratios ranging from ϕ = 0.6 to ϕ = 1.2. It was found that the maximum thermal and exergy efficiency was obtained at ϕ = 1.2 while the lowest thermal and exergy efficiency was found at ϕ = 0.8. Furthermore, the findings also indicated that the total entropy generation, energy loss, and exergy destroyed yield the lowest values at ϕ = 1.0 with...
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2021
The formation of vortex and swirling in any flow structures of the hydropower dam is undesirable,... more The formation of vortex and swirling in any flow structures of the hydropower dam is undesirable, as it reduced the performance of turbine as well as lowered the efficiency of hydroelectric power generation. Furthermore, it could lead to the hydraulic losses at the entrance of power intakes, the blockage at the trash racks due to entrain debris and the reduction of the working life of turbines. This paper studied penstocks flows in the dam intake section numerically. The dynamics of penstocks flows at different operating conditions were analyzed to determine the vortex formation. To access the veracity of the current proposed numerical model, a validating study based on the particle image velocimetry (PIV) experiment was conducted. It was found the discrepancy between both numerical and experimental flow velocities is 12%, implying the numerical model is well-validated and the corresponding findings are acceptable. It was found that the vortex was formed in the penstock that located...
Malaysian Journal of Fundamental and Applied Sciences, 2020
Nonlinear Schrodinger equation (NLSE) is the fundamental equation which describes the wave field ... more Nonlinear Schrodinger equation (NLSE) is the fundamental equation which describes the wave field envelope dynamics in a nonlinear and dispersive medium. However, if the fields have many components, one should consider the Coupled Nonlinear Schrodinger equation (CNLSE). We considered the interactions of orthogonally polarized and equal-amplitude vector solitons with two polarization directions. In this paper, we focused on the effect of Gaussian potential on the scattering of the vector soliton in CNLSE. The scattering process was investigated by the variational approximation method and direct numerical solution of CNLSE. Analytically, we analyzed the dynamics of the width and center of mass position of a soliton by the variational approximation method. Soliton may be reflected from each other or transmitted through or trapped. Initially, uncoupled solitons may form the coupled state if the kinetic energy of solitons less than the potential of attractive interaction between solitons ...
Areca catechu fronds show higher capability for removal of color and COD and were utilized as an ... more Areca catechu fronds show higher capability for removal of color and COD and were utilized as an adsorbent for adsorption process. Areca catechu fronds activated carbon (AC) undergoes activation process after carbonization under purified carbon dioxide and turned as activated carbon. Three variables were chosen for the preparation optimization which consists of temperature, activation time and impregnation ratio in order to study the effect toward the removal of color and COD from cotton textile mill wastewater. For this study, the response surface methodology (RSM) was employed. Quadratic model were develop based on three variables and responses of color and COD. High values of the coefficient determination, R2 were obtained from analysis of variance (ANOVA) for both responses. The optimum Areca catechu fronds activated carbon (AC) preparation condition was established at temperature 797 °C for 1.57 hour of activation time and 2.75 impregnation ratios, corresponding to the removal ...
PROCEEDINGS OF ADVANCED MATERIAL, ENGINEERING & TECHNOLOGY, 2020
AIP Conference Proceedings, 2021
This study was developed using Arduino Nano that act as main brain of this system. Together with ... more This study was developed using Arduino Nano that act as main brain of this system. Together with the android application that was developed use to allowed user to unlock and lock their bicycle easily by tapping the green and red button inside the application. A high security should be applied because this bicycle lock can be hack or stolen by anyone. Therefore, this project has an addition of vibration sensor and alarm to prevent theft from happening. To compare this study with top keyless bicycle company maker is far way to achieved but it is something that is not impossible to do. In this study, the objective that had to develop a keyless way to secure the bicycle lock. The software development of the keyless bicycle lock is to be based on simple yet powerful programming languages such as Arduino coding or Raspberry Pi 3 processor coding. The Bluetooth in the lock system are to be connected with the mobile phone Bluetooth software for the locking mechanism.
AIP Conference Proceedings, 2021
AIP Conference Proceedings, 2021
The purpose of this paper is to identify the suitable design to develop a prototype of keyless an... more The purpose of this paper is to identify the suitable design to develop a prototype of keyless anti-theft bicycle lock system. Student bicycle commuters are not satisfied with the present selection of bicycle locks accessible. Many express that locking their bicycle isn’t a simple procedure. User contemplates showed that u-locks are seen to be the strongest and rent powerless to breaking; anyway they are inconvenient and badly designed to utilize. Cable locks are light weight; however, they are can get effortlessly cut. Different methods are costly and require significant modifications to the bicycle. These regular locks are not by any means effective in theft anticipation and this is an outstanding issue. The attempts to tackle this issue included either designing brand new locking system or enhancing the current locks by adding features.
IOP Conference Series: Materials Science and Engineering, 2020
The increasing consumption of fisheries product causes large amount of wastewater produced from f... more The increasing consumption of fisheries product causes large amount of wastewater produced from fish processing industry. General wastewater treatment includes the use of harmful chemical such as chlorine. This research opens a new platform to treat wastewater by using ionic cupric copper which is also known as copper nanoparticles (CuNP). Copper nanoparticles are synthesized through chemical reduction method by using Copper sulphate pentahydrate (CuSO4.5H2O) as precursor and Sodium hydroxide (NaOH) as reducing agent. The physical characterizations of CuNP are carried out by using SEM and the chemical characterizations are carried out by using XRD and FTIR. The efficiency of CuNP to treat wastewater from fish processing industry are determined by the removal of COD, Total coliform and E.Coli. The optimum concentration to reduce COD is 1000mg/L which causes 59.4% percentage removal of COD. The optimum concentration for COD removal is used to determine the volume of CuNP needed to rem...
IOP Conference Series: Materials Science and Engineering, 2020
Concerns of microorganisms growth in fish processing plants are crucial to the operation of the f... more Concerns of microorganisms growth in fish processing plants are crucial to the operation of the fish processing facilities. The presence of toxic microorganisms in the effluent could bring detrimental effects to the environmental and public health as several disease outbreaks could possibly take place with the release of infectious wastewater from the facilities. Environmental Quality (Industrial Effluent) Regulations 2009 published by Department of Environment Malaysia has clearly stated that the discharge limit of total coliform into water bodies that are safe for marine life, fisheries and human consumption must be not exceeded 600MPN/100 mL while for E.coli is not more than 400MPN/100mL. To cope with the laws and regulations, the industry has practiced several methods on disinfecting the effluent such as chlorination or ultraviolet treatment. However, the excessive use of such methods can cause deterioration to the environment as the by-products get released from the effluent ar...
International Journal of Recent Technology and Engineering (IJRTE), 2019
Rugby headgear is one of the important protective tool for protecting rugby players from head inj... more Rugby headgear is one of the important protective tool for protecting rugby players from head injury. However, there are still some professional or amateur rugby players who are not concerned about the use of headgear as a protective device. Rugby headgear has been created to protect the heads of rugby players in particular to avoid minor injuries such as wounds because rugby is a sport that requires strong physical movements and abusive techniques. At the same time, the ability of rugby headgear to protect against the occurrence of brain injury is questionable. Therefore, the objective of this project is to propose a conceptual design of rugby headgear by taking into account factors to prevent or reduce the potential of brain injury. The methodology used was a survey of professional and amateur rugby players to determine the need for the design of the headgear, conceptual map for the idea of development, House of Quality (HoQ) in assessing the needs of rugby players, Morphological ...
IOP Conference Series: Materials Science and Engineering, 2018
This study is concerning phosphorus distribution in Putrajaya Wetland. Phosphorus is one of the i... more This study is concerning phosphorus distribution in Putrajaya Wetland. Phosphorus is one of the important component in nutrients for living things be it aquatic or non-aquatic organisms. Total phosphorus (TP) results will give some information on the trophic status of surface water in water bodies. The focus of this study is to determine the total phosphorus concentration in Putrajaya Wetland which is in the inlet of the wetland then outlet of the wetland (Central Wetland Lake). The water sample is taken from Putrajaya Wetland and the test was conducted in the laboratory. The result from this study shows the results for total phosphorus according to month, sampling station and cells. Lowest total phosphate at the Central Wetland compare with all the wetland arms cells.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The purpose of this paper is to present examples of independent water and wastewater treatment me... more The purpose of this paper is to present examples of independent water and wastewater treatment methods in a way to provide clean water to the community. Out there, tons of method exists to reduce the effect of the water pollutant and improve the water quality problems. In order to reduce the water problems, this paper focuses on the process of water and wastewater treatment by using three different methods which are natural and independent water and wastewater treatment, independent artificial water, and wastewater treatment and hybrid water and wastewater treatment. Natural independent method mostly using vegetation as a medium or mechanism to purify water. For the hybrid method, green energy artificial floating island(GAFI), solar power artificial floating Island (SAFI) and solar power lake and pond aeration system were studied the removal efficiency by all the devices. The methods were reviewed in order to find the efficiencies and effectiveness of each method. water especially in water reservoirs such as lakes, seas, rivers and groundwater caused by human activity[5]. Meanwhile, wastewater can be determined as the flow of utilized water released from residents, enterprises, business exercises and organizations which is coordinated to treatment plants by an engineered system of pipes and painstakingly planned[6]. Nowadays, the majority of the lakes in Malaysia are dirtied because of unlawful dumping of waste, eutrophication and soil disintegration amid precipitation overflow. In order to get a healthy environment, water and wastewater need to experience a cleaning procedure called wastewater treatment process [7]. Water and wastewater purification play a major role in ensuring access to safe drinking water. There are lots of water treatment devices, however, simple and low-cost technologies are quite limited[8]. In order to achieve removal efficiency, the biodegradability assessment needed to be carried out to optimize water and wastewater treatment [9].
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
Treated water is an improved water quality and very essential for aquaculture or for domestic usa... more Treated water is an improved water quality and very essential for aquaculture or for domestic usage at remote area. One of the process to treat water is by filtration. A solar powered water treatment device (SWAD) prototype was built to cater this demand. SWAD is basically a floating water filter which operates in a self-sustainable way on calm water body such as lake or pond. Solar panel is used to generates electricity to power the pumps to suck water into the filter. This paper discusses the filtering performance of the prototype by taking UNITEN Lake as the venue for the test. The tests show significant results on the activated carbon filter where the contaminants are removed effectively. The activated carbon is able to filter water in an effective and efficient way.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
High Performance Concrete (HPC) with small water/binder ratio has been widely used in the constru... more High Performance Concrete (HPC) with small water/binder ratio has been widely used in the construction industry nowadays. However, HPC is found to be extremely delicate to the threat of early age cracking which vastly affect the concrete quality. Previous researchers have proposed self-curing technique as a solution to the problem. A self-curing concrete is able to absorb moisture from the surrounding for proper cement hydration. This paper study the environmental monitoring and material characterization of new and used diapers hydrogel polymer. In this study, diapers hydrogel polymer is proposed as a self-curing agent due to its amazing water absorption ability. Laboratory testing was done for environmental monitoring of both new and used diaper polymer, including turbidity test, colour test, pH test, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) test whilst for material characterization, Wavelength Dispersive X-Ray Fluorescence (WDXRF) test, X-Ray Diffraction (XRD) analysis and Fourier Transform Infrared (FTIR) analysis was conducted. As a result, addition of used diapers polymer with pH of 8.34 into high performance concrete mix has no significant effect of the alkalinity of concrete, which it is a crucial requirement to maintain the performance of concrete structure. Hence, it concluded that polymer source from used diaper has a good potential as self-curing agent in concrete.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The purpose of this paper is to identify and determine the factors affecting the quality manageme... more The purpose of this paper is to identify and determine the factors affecting the quality management of construction projects by using Industrialised Building System (IBS) and analyze the factors using Relative Importance Index (RII) method. In Malaysia, the used of the Industrialised Building System (IBS) in the construction industry has been rise as it gives many benefits to the project. However, without a decent quality management of the IBS product, it might give a bad perspective from the customers who are the contractors or consultants. From the previous literatures, hundred and nine (109) factors affecting the quality management of construction project that using Industrialised Building System (IBS) were identified and. In this study, the method used for data collection is by distribution of questionnaire. Most significance factors affecting the quality in construction were identified which is proper production equipment and technology with highest value of RII = 0.684. This study has important contribution to help project players of construction industry to ensure and maintain the good quality in construction while using Industrialised Building System (IBS) in future construction.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
An improved water quality is very essential element for aquaculture industry. Solar powered water... more An improved water quality is very essential element for aquaculture industry. Solar powered water treatment device is basically a floating water filter which operates in a self-sustainable way on calm water body such as lake. The objective of building a prototype solar powered water treatment device (SWAD) is to have an independent power supply without relying from the grid to run the water treatment process through filtration. The project undergoes preliminary design, CAD drawings with simulation, prototype fabrication and prototype testing. By utilizing CAD simulation, through analysis has been done to determine the suitable size and the type of material for the device structure. The criteria of the structure must be light weight, sturdy and not reactive to water. The structure needs to withstand the total weight of the prototype plus it can float at the water surface.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The automated sprinkler system is developed to reduce human effort to water their plant in their ... more The automated sprinkler system is developed to reduce human effort to water their plant in their backyard. The objectives of the project is to design, develop and analyse the water sprinkler system. The water sprinkler head was designed in solid works. The created design is then optimised using ANSYS FLUENT which the outlet of the water sprinkler head varies. The velocity and pressure is observed from the simulation through ANSYS FLUENT. Based on the result found that 1mm diameter outlet has highest velocity 2.07 m/s and highest pressure 105.64 Pa. The fabricated prototype then tested with developed automated system in UNITEN. The result of the test shows that the sprinkler height of 0.6 m from the ground projects the water the furthest at 0.35 m.
AIP Conference Proceedings, 2018
Entropy, 2021
Porous media burner (PMB) is widely used in a variety of practical systems, including heat exchan... more Porous media burner (PMB) is widely used in a variety of practical systems, including heat exchangers, gas propulsion, reactors, and radiant burner combustion. However, thorough evaluations of the performance of the PMB based on the usefulness of entropy generation, thermal and exergy efficiency aspects are still lacking. In this work, the concept of a double-layer micro PMB with a 23 mm cylindrical shape burner was experimentally demonstrated. The PMB was constructed based on the utilization of premixed butane-air combustion which consists of an alumina and porcelain foam. The tests were designed to cover lean to rich combustion with equivalence ratios ranging from ϕ = 0.6 to ϕ = 1.2. It was found that the maximum thermal and exergy efficiency was obtained at ϕ = 1.2 while the lowest thermal and exergy efficiency was found at ϕ = 0.8. Furthermore, the findings also indicated that the total entropy generation, energy loss, and exergy destroyed yield the lowest values at ϕ = 1.0 with...
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2021
The formation of vortex and swirling in any flow structures of the hydropower dam is undesirable,... more The formation of vortex and swirling in any flow structures of the hydropower dam is undesirable, as it reduced the performance of turbine as well as lowered the efficiency of hydroelectric power generation. Furthermore, it could lead to the hydraulic losses at the entrance of power intakes, the blockage at the trash racks due to entrain debris and the reduction of the working life of turbines. This paper studied penstocks flows in the dam intake section numerically. The dynamics of penstocks flows at different operating conditions were analyzed to determine the vortex formation. To access the veracity of the current proposed numerical model, a validating study based on the particle image velocimetry (PIV) experiment was conducted. It was found the discrepancy between both numerical and experimental flow velocities is 12%, implying the numerical model is well-validated and the corresponding findings are acceptable. It was found that the vortex was formed in the penstock that located...
Malaysian Journal of Fundamental and Applied Sciences, 2020
Nonlinear Schrodinger equation (NLSE) is the fundamental equation which describes the wave field ... more Nonlinear Schrodinger equation (NLSE) is the fundamental equation which describes the wave field envelope dynamics in a nonlinear and dispersive medium. However, if the fields have many components, one should consider the Coupled Nonlinear Schrodinger equation (CNLSE). We considered the interactions of orthogonally polarized and equal-amplitude vector solitons with two polarization directions. In this paper, we focused on the effect of Gaussian potential on the scattering of the vector soliton in CNLSE. The scattering process was investigated by the variational approximation method and direct numerical solution of CNLSE. Analytically, we analyzed the dynamics of the width and center of mass position of a soliton by the variational approximation method. Soliton may be reflected from each other or transmitted through or trapped. Initially, uncoupled solitons may form the coupled state if the kinetic energy of solitons less than the potential of attractive interaction between solitons ...
Areca catechu fronds show higher capability for removal of color and COD and were utilized as an ... more Areca catechu fronds show higher capability for removal of color and COD and were utilized as an adsorbent for adsorption process. Areca catechu fronds activated carbon (AC) undergoes activation process after carbonization under purified carbon dioxide and turned as activated carbon. Three variables were chosen for the preparation optimization which consists of temperature, activation time and impregnation ratio in order to study the effect toward the removal of color and COD from cotton textile mill wastewater. For this study, the response surface methodology (RSM) was employed. Quadratic model were develop based on three variables and responses of color and COD. High values of the coefficient determination, R2 were obtained from analysis of variance (ANOVA) for both responses. The optimum Areca catechu fronds activated carbon (AC) preparation condition was established at temperature 797 °C for 1.57 hour of activation time and 2.75 impregnation ratios, corresponding to the removal ...
PROCEEDINGS OF ADVANCED MATERIAL, ENGINEERING & TECHNOLOGY, 2020
AIP Conference Proceedings, 2021
This study was developed using Arduino Nano that act as main brain of this system. Together with ... more This study was developed using Arduino Nano that act as main brain of this system. Together with the android application that was developed use to allowed user to unlock and lock their bicycle easily by tapping the green and red button inside the application. A high security should be applied because this bicycle lock can be hack or stolen by anyone. Therefore, this project has an addition of vibration sensor and alarm to prevent theft from happening. To compare this study with top keyless bicycle company maker is far way to achieved but it is something that is not impossible to do. In this study, the objective that had to develop a keyless way to secure the bicycle lock. The software development of the keyless bicycle lock is to be based on simple yet powerful programming languages such as Arduino coding or Raspberry Pi 3 processor coding. The Bluetooth in the lock system are to be connected with the mobile phone Bluetooth software for the locking mechanism.
AIP Conference Proceedings, 2021
AIP Conference Proceedings, 2021
The purpose of this paper is to identify the suitable design to develop a prototype of keyless an... more The purpose of this paper is to identify the suitable design to develop a prototype of keyless anti-theft bicycle lock system. Student bicycle commuters are not satisfied with the present selection of bicycle locks accessible. Many express that locking their bicycle isn’t a simple procedure. User contemplates showed that u-locks are seen to be the strongest and rent powerless to breaking; anyway they are inconvenient and badly designed to utilize. Cable locks are light weight; however, they are can get effortlessly cut. Different methods are costly and require significant modifications to the bicycle. These regular locks are not by any means effective in theft anticipation and this is an outstanding issue. The attempts to tackle this issue included either designing brand new locking system or enhancing the current locks by adding features.
IOP Conference Series: Materials Science and Engineering, 2020
The increasing consumption of fisheries product causes large amount of wastewater produced from f... more The increasing consumption of fisheries product causes large amount of wastewater produced from fish processing industry. General wastewater treatment includes the use of harmful chemical such as chlorine. This research opens a new platform to treat wastewater by using ionic cupric copper which is also known as copper nanoparticles (CuNP). Copper nanoparticles are synthesized through chemical reduction method by using Copper sulphate pentahydrate (CuSO4.5H2O) as precursor and Sodium hydroxide (NaOH) as reducing agent. The physical characterizations of CuNP are carried out by using SEM and the chemical characterizations are carried out by using XRD and FTIR. The efficiency of CuNP to treat wastewater from fish processing industry are determined by the removal of COD, Total coliform and E.Coli. The optimum concentration to reduce COD is 1000mg/L which causes 59.4% percentage removal of COD. The optimum concentration for COD removal is used to determine the volume of CuNP needed to rem...
IOP Conference Series: Materials Science and Engineering, 2020
Concerns of microorganisms growth in fish processing plants are crucial to the operation of the f... more Concerns of microorganisms growth in fish processing plants are crucial to the operation of the fish processing facilities. The presence of toxic microorganisms in the effluent could bring detrimental effects to the environmental and public health as several disease outbreaks could possibly take place with the release of infectious wastewater from the facilities. Environmental Quality (Industrial Effluent) Regulations 2009 published by Department of Environment Malaysia has clearly stated that the discharge limit of total coliform into water bodies that are safe for marine life, fisheries and human consumption must be not exceeded 600MPN/100 mL while for E.coli is not more than 400MPN/100mL. To cope with the laws and regulations, the industry has practiced several methods on disinfecting the effluent such as chlorination or ultraviolet treatment. However, the excessive use of such methods can cause deterioration to the environment as the by-products get released from the effluent ar...
International Journal of Recent Technology and Engineering (IJRTE), 2019
Rugby headgear is one of the important protective tool for protecting rugby players from head inj... more Rugby headgear is one of the important protective tool for protecting rugby players from head injury. However, there are still some professional or amateur rugby players who are not concerned about the use of headgear as a protective device. Rugby headgear has been created to protect the heads of rugby players in particular to avoid minor injuries such as wounds because rugby is a sport that requires strong physical movements and abusive techniques. At the same time, the ability of rugby headgear to protect against the occurrence of brain injury is questionable. Therefore, the objective of this project is to propose a conceptual design of rugby headgear by taking into account factors to prevent or reduce the potential of brain injury. The methodology used was a survey of professional and amateur rugby players to determine the need for the design of the headgear, conceptual map for the idea of development, House of Quality (HoQ) in assessing the needs of rugby players, Morphological ...
IOP Conference Series: Materials Science and Engineering, 2018
This study is concerning phosphorus distribution in Putrajaya Wetland. Phosphorus is one of the i... more This study is concerning phosphorus distribution in Putrajaya Wetland. Phosphorus is one of the important component in nutrients for living things be it aquatic or non-aquatic organisms. Total phosphorus (TP) results will give some information on the trophic status of surface water in water bodies. The focus of this study is to determine the total phosphorus concentration in Putrajaya Wetland which is in the inlet of the wetland then outlet of the wetland (Central Wetland Lake). The water sample is taken from Putrajaya Wetland and the test was conducted in the laboratory. The result from this study shows the results for total phosphorus according to month, sampling station and cells. Lowest total phosphate at the Central Wetland compare with all the wetland arms cells.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The purpose of this paper is to present examples of independent water and wastewater treatment me... more The purpose of this paper is to present examples of independent water and wastewater treatment methods in a way to provide clean water to the community. Out there, tons of method exists to reduce the effect of the water pollutant and improve the water quality problems. In order to reduce the water problems, this paper focuses on the process of water and wastewater treatment by using three different methods which are natural and independent water and wastewater treatment, independent artificial water, and wastewater treatment and hybrid water and wastewater treatment. Natural independent method mostly using vegetation as a medium or mechanism to purify water. For the hybrid method, green energy artificial floating island(GAFI), solar power artificial floating Island (SAFI) and solar power lake and pond aeration system were studied the removal efficiency by all the devices. The methods were reviewed in order to find the efficiencies and effectiveness of each method. water especially in water reservoirs such as lakes, seas, rivers and groundwater caused by human activity[5]. Meanwhile, wastewater can be determined as the flow of utilized water released from residents, enterprises, business exercises and organizations which is coordinated to treatment plants by an engineered system of pipes and painstakingly planned[6]. Nowadays, the majority of the lakes in Malaysia are dirtied because of unlawful dumping of waste, eutrophication and soil disintegration amid precipitation overflow. In order to get a healthy environment, water and wastewater need to experience a cleaning procedure called wastewater treatment process [7]. Water and wastewater purification play a major role in ensuring access to safe drinking water. There are lots of water treatment devices, however, simple and low-cost technologies are quite limited[8]. In order to achieve removal efficiency, the biodegradability assessment needed to be carried out to optimize water and wastewater treatment [9].
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
Treated water is an improved water quality and very essential for aquaculture or for domestic usa... more Treated water is an improved water quality and very essential for aquaculture or for domestic usage at remote area. One of the process to treat water is by filtration. A solar powered water treatment device (SWAD) prototype was built to cater this demand. SWAD is basically a floating water filter which operates in a self-sustainable way on calm water body such as lake or pond. Solar panel is used to generates electricity to power the pumps to suck water into the filter. This paper discusses the filtering performance of the prototype by taking UNITEN Lake as the venue for the test. The tests show significant results on the activated carbon filter where the contaminants are removed effectively. The activated carbon is able to filter water in an effective and efficient way.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
High Performance Concrete (HPC) with small water/binder ratio has been widely used in the constru... more High Performance Concrete (HPC) with small water/binder ratio has been widely used in the construction industry nowadays. However, HPC is found to be extremely delicate to the threat of early age cracking which vastly affect the concrete quality. Previous researchers have proposed self-curing technique as a solution to the problem. A self-curing concrete is able to absorb moisture from the surrounding for proper cement hydration. This paper study the environmental monitoring and material characterization of new and used diapers hydrogel polymer. In this study, diapers hydrogel polymer is proposed as a self-curing agent due to its amazing water absorption ability. Laboratory testing was done for environmental monitoring of both new and used diaper polymer, including turbidity test, colour test, pH test, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) test whilst for material characterization, Wavelength Dispersive X-Ray Fluorescence (WDXRF) test, X-Ray Diffraction (XRD) analysis and Fourier Transform Infrared (FTIR) analysis was conducted. As a result, addition of used diapers polymer with pH of 8.34 into high performance concrete mix has no significant effect of the alkalinity of concrete, which it is a crucial requirement to maintain the performance of concrete structure. Hence, it concluded that polymer source from used diaper has a good potential as self-curing agent in concrete.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The purpose of this paper is to identify and determine the factors affecting the quality manageme... more The purpose of this paper is to identify and determine the factors affecting the quality management of construction projects by using Industrialised Building System (IBS) and analyze the factors using Relative Importance Index (RII) method. In Malaysia, the used of the Industrialised Building System (IBS) in the construction industry has been rise as it gives many benefits to the project. However, without a decent quality management of the IBS product, it might give a bad perspective from the customers who are the contractors or consultants. From the previous literatures, hundred and nine (109) factors affecting the quality management of construction project that using Industrialised Building System (IBS) were identified and. In this study, the method used for data collection is by distribution of questionnaire. Most significance factors affecting the quality in construction were identified which is proper production equipment and technology with highest value of RII = 0.684. This study has important contribution to help project players of construction industry to ensure and maintain the good quality in construction while using Industrialised Building System (IBS) in future construction.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
An improved water quality is very essential element for aquaculture industry. Solar powered water... more An improved water quality is very essential element for aquaculture industry. Solar powered water treatment device is basically a floating water filter which operates in a self-sustainable way on calm water body such as lake. The objective of building a prototype solar powered water treatment device (SWAD) is to have an independent power supply without relying from the grid to run the water treatment process through filtration. The project undergoes preliminary design, CAD drawings with simulation, prototype fabrication and prototype testing. By utilizing CAD simulation, through analysis has been done to determine the suitable size and the type of material for the device structure. The criteria of the structure must be light weight, sturdy and not reactive to water. The structure needs to withstand the total weight of the prototype plus it can float at the water surface.
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2019), 2019
The automated sprinkler system is developed to reduce human effort to water their plant in their ... more The automated sprinkler system is developed to reduce human effort to water their plant in their backyard. The objectives of the project is to design, develop and analyse the water sprinkler system. The water sprinkler head was designed in solid works. The created design is then optimised using ANSYS FLUENT which the outlet of the water sprinkler head varies. The velocity and pressure is observed from the simulation through ANSYS FLUENT. Based on the result found that 1mm diameter outlet has highest velocity 2.07 m/s and highest pressure 105.64 Pa. The fabricated prototype then tested with developed automated system in UNITEN. The result of the test shows that the sprinkler height of 0.6 m from the ground projects the water the furthest at 0.35 m.
AIP Conference Proceedings, 2018