EMMANUEL OGBE - Academia.edu (original) (raw)

Papers by EMMANUEL OGBE

Faculty of Science, University of Port Harcourt, Printed in Nigeria, 2023

The deregulation of the power and energy sector introduced a strong element of competition. Power... more The deregulation of the power and energy sector introduced a strong element of competition. Power plant operators try to develop techniques to maximize profits in the dynamic power industry. New methods of improving and optimizing simple gas turbine power plants are needed to enhance operational decision making and therefore to maximize power plant profitability by reducing operational and maintenance cost and increasing revenue. In this work, the thermodynamic model equations of both a simple gas turbine and regenerative gas turbine cycle were used to analyses the effect of increase in the regenerative effectiveness to the performance of the simple gas turbine. Microsoft Excel 2010 software was used to carried out the analysis. It was observed that for the simple gas turbine the thermal efficiency, heat rate, specific fuel consumption and heat addition have a constant value of 35.4%, 9630Btu/Kwh, 0.2768kg/Kwh, 44237.8Kw, all through, while for the regenerative gas turbine cycle as the value of the regenerative effectiveness increases from 0.8 to 1.0, the thermal efficiency increases from 41.1% to 65.0%, the heat rate decreases from 8753Btu/Kwh to 5536 Btu/Kwh , specific fuel consumption decreases from 0.248945122Kg/Kw.h to 0.157432413Kg/Kw.h and heat addition reduces from 39782.5Kw to 25158.4Kw. It was seen clearly that the regenerative gas turbine cycle has higher thermal efficiency compare to the simple gas turbine, and as the regenerative effectiveness of the regenerative gas turbine cycle increases
the performance of the regenerative gas turbine increases.

International Journal of Research Publication and Reviews, 2024

The Gas Turbine is unquestionably one of the most important inventions of the 20th century, which... more The Gas Turbine is unquestionably one of the most important inventions of the 20th century, which has been utilized across major industries which includes the power industry, aircraft sector, and technological industry. But the Gas Turbine has its own limitation like deterioration in performance during operation leading to reduce capacity and thermal efficiency, this led to the modification of gas turbine increase power and thermal efficiency. Therefore this work was performed on a simple gas turbine "AES BARGES" using the regenerative method and excel software to calculate and compute results. Result shows that after employing thermodynamics model to analyse the thermal efficiency, heat addition, specific fuel consumption and heat rate of a simple gas turbine, and further converting to simple gas turbine to regenerative with regenerative effectiveness of 0.8 to 1.0, the thermal efficiency was seen to be constant, the thermal efficiency for a regenerative cycle increase linearly while the heat addition, specific fuel consumption and heat rate reduces linearly as regenerative effectiveness increases. At regenerative effectiveness of 0.8-0.89, the thermal efficiency of the simple gas turbine is higher compare to the regenerative cycle, but from regenerative effectiveness of 0.90-1, the thermal efficiency of the regenerative cycle is higher compares to the simple gas turbine

International Journal of Research Publication and Reviews, 2024

This study explores the fabrication and testing of a straight forward, yet efficient two-refriger... more This study explores the fabrication and testing of a straight forward, yet efficient two-refrigerant blending plant. Motivated by the need for a cost-effective and versatile solution in refrigeration systems, the design focuses on simplicity while maintaining optimal performance. The blending plant combines two refrigerants, carefully selected for their compatibility and performance characteristics. This study unfolds in several key stages, beginning with a detailed conceptual design that prioritizes ease of fabrication and operational functionality. Utilizing computer-aided design (CAD) tools, the team develops 3D models and engineering drawings to guide the fabrication process. Material selection considers the thermodynamic properties required for effective refrigeration, ensuring durability and efficiency. The chosen materials undergo precision machining, welding, and assembly, guided by the overarching principle of facilitating ease of manufacturing and scalability. The fabrication involves precision machining, welding, and assembly to bring the components together into a cohesive system. Following fabrication, the blending plant undergoes rigorous testing procedures to validate its performance under varying conditions. Tests include assessments of refrigerant mixture ratios, pressure levels, and thermal efficiency. The results were analyzed against design specifications to ensure the plant meets industry standards and is suitable for diverse refrigeration applications. This study not only contributes a practical solution to refrigeration challenges but also serves as a foundational exploration into the efficient blending of refrigerants. The simplicity of the design enhances its accessibility for broader applications, making it a promising candidate for small-scale refrigeration systems. The objective is to offer a versatile solution for refrigeration systems that balances efficiency, affordability, and adaptability to diverse applications.

International Journal of Engineering and Modern Technology (IJEMT) , 2024

In this study Omotosho gas turbine plant was modified into three different configurations by inco... more In this study Omotosho gas turbine plant was modified into three different configurations by incorporating Inlet air cooler and Heat Recovery Steam Generator (HRSG). The reason for the modification is to improve its performance. Aspen Hysys software was used to simulate both the simple (Omotosho) and the three modified gas turbine plants. The results reviews that the three modified gas turbine plants has higher thermal efficiency compare to the Omotosho gas turbine plant. There is thermal efficiency increase from 34.94% for the Omotosho gas turbine to 47.44%, 43.93% and 45.21% for the first, second and third modifications respectively. Also, there was increase in the power output from 114 MW for the Omotosho gas turbine to 157 MW, 143 MW and 147 MW for the first, second and third modifications respectively. The higher thermal efficiency of the modified gas turbine plants leads to specific fuel consumption reduction from 0.2116 kg/kWh for the Omotosho gas turbine to 0.1136 kg/kWh, 0.1683 kg/kWh and 0.1611 kg/kWh for the first, second and third modifications respectively. The reduction in the specific fuel consumption in the three modified gas turbine also lead to reduction of heat rate from 10304.27 kJ/kWh for the Omotosho gas turbine to 7588.89 kJ/kWh, 8195.51 kJ/kWh and 7963.43 kJ/kWh for the first, second and third modifications respectively. The emission rate of the three modified gas turbine plants are lower than that of the Omotosho plant thereby leading to reduction in global warming and ozone layer depletion. It was observed that the first modification has the highest overall performance, followed by the third modification then finally the second.

Taraba Taraba Journal of Engineering and Technology (TAJET)

International Research Journal of Modernization in Engineering Technology and Science , 2021

It was discovered that particle size, compaction pressure and percentage composition have effects... more It was discovered that particle size, compaction pressure and percentage composition have effects on the briquette qualities. Higher compaction pressure increases the shattering index (durability) of the briquettes. Reduction in particle size increases the compaction ratio. The lower the burning rate the longer the briquette will burn compare to other samples and the higher particle size, there is increase in the burning rate, the lower the compaction pressure, higher volatile content and larger particle size decrease the ignition time of the briquette samples, it was also observed that increase in the particle size and reduction in the compaction pressure reduces water boiling time. It was concluded that 30 % mango nuts, 35 % cassava peels and 35 % orange peels have the lowest specific fuel consumption and has the highest calorific value.

International Research Journal of Modernization in Engineering Technology and Science, 2021

Ship behavior in seaway is critical in investigating the performance of vessel in seaway. This st... more Ship behavior in seaway is critical in investigating the performance of vessel in seaway. This study was aimed at predicting the seakeeping quality of an offshore pipelay vessel in coupled heave and pitch motion and to calculate the motion sickness index. To perform seakeeping analysis, the strip wave theory, basic governing equation of motion and the wave characteristics together with Runga-Kutta fourth order numerical method was used in order to calculate the Response Amplitude Operations (RAO), added mass and hydrodynamic damping coefficient, hydrodynamic forces of heave and pitch in each mode of motion. The JONSWAP wave theoretical spectra was used to describe the wave frequency. The vessel is operating off the West African seaway. This research represents a complete model of an offshore pipelaying vessel and the numerical solution are obtained using MATLAB. The MATLAB was used to generate and publish the hydrodynamic coefficient and RAO's.

International Research Journal of Engineering and Technology (IRJET) , 2019

In this study Hysys software was used to simulate the hydrate formation temperature at different ... more In this study Hysys software was used to simulate the hydrate formation temperature at different pressure with and without the use of inhibitors, I used the hybrid of thermodynamic Hydrate Inhibitor Methanol (MeOH) and kinetic Hydrate Inhibitors Vinylactamide (VIMA) and a pressure range of 3000 Psi to 5000 Psi to be able to determine the effects of the Hybrid Hydrate Inhibitor to the hydrate formation temperature at different pressures. 10% wt and 40% wt Concentration of Methanol were considered, and a 0.4%wt and 0.8% wt concentration of Vinylactamide were considered. After the simulation it was observed that 40% wt concentration of methanol and 0.8% wt concentration of Vinylactamide gave the least Hydrate formation Temperature and the highest temperature depression. This study makes it easy for a Flow Assurance Engineer to know the right proportion of the weight concentration of methanol and vinylactamide that will give the least hydrate formation temperature at certain pressure.

International Journal of Scientific Research and Engineering Development, 2021

Energy access is vital in improving living standards as well socioeconomic and technological deve... more Energy access is vital in improving living standards as well socioeconomic and technological development. Access to electricity has been a major challenge in Nigeria especially in rural areas as about 65% do not have access to electricity after much expenditure in the power sector. Electricity can be provided either by centralized grid based means or decentralized methods. Decentralized electrification involves generating electricity at or near the place where it will be used, this eliminates the challenges of high cost of grid extensive transmission network and inadequate generation capacity of the existing centralized power systems. This paper suggests that adopting the decentralized power generation system as done in South Africa, where each state generates its electricity using the prevalent energy source will increase electrification rate in Nigeria. Decentralizing electricity in Nigeria will lead to cheaper power, lower fuel use, reduced energy losses and lower levels of emissions compared to centralized grid.

International Journal of Research Publication and Reviews, 2022

The aim of this research is to select ROV Frame Material for Improved Performance in Varying Ocea... more The aim of this research is to select ROV Frame Material for Improved Performance in Varying Ocean Depth with the aid of MATLAB programming language and STAAD.Pro software by applying the numerical skills. This was achieved by first running a material test analysis on the frame of the ROV, then a stress analysis test is carried out on the material and sizes selected to determine if the ROV frame can withstand the stress on the material. The total force due to wave effect and total forces on the ROV is then computed using the MATLAB, then the power required to drive the ROV at different water depth of 50m, 500m and 1000m during the operation is computed. Based on the results, suitable material among the under study is selected. It can be deduced from the results that, the maximum internal displacement of the ROV frame that houses all the components is able to withstand over 50 kPa with an inner displacement of 5mm. The result when compared with the maximum allowable stress of steel of 210 was found to be satisfactory. The von mises stress of the ROV frame under load which is the value used to determine if a given material will yield or fracture under load was also computed during the ROV design. The von mises stress helps to show if the material will fail under the different impacted load on the ROV frame based on the nodal sub-region employ, and the areas or region with least impacted load as shown with blue coloration having a von mises stress less than 200.4665 kpa while the area or region with the most load impact or distribution is shown with red coloration with maximum von mises stress greater than or equal to 53.936212 Mpa. The design also computes the power required to drive the ROV and the power that will be require to drive the ROV though the maximum power of about 2000kw as the working power of the ROV. It was also observed that the minimum drive power of the ROV (250kw) was recorded at 1000m water depth. The task to determine how deep into ocean the Remotely Operated Underwater Vehicle can dive while maintaining a safety factor of 1.5 was also accomplish as Stainless steel 317, Titanium Grade 5 and Aluminium 7075 meet the factor of safety condition at water depth of 1000m.

International Journal of Advances in Engineering and Management (IJAEM), 2021

Hysy Software was used to Simulate hydrate formation temperature at different pressure using a pr... more Hysy Software was used to Simulate hydrate formation temperature at different pressure using a pressure range of 3000 psi to 5000, a hybrid of Mono-Ethylene Glycol (MEG) and Vinylcaprolactum (VP) was used to determine the Hydrate Formation temperature at different pressure. 10% weight and 40% weight concentration of MEG were added to 0.4% weight and 0.8% weight of VP respectively, it was observed that an increase in the weight concentration of MEG increases the hydrate formation Temperature at a specific pressure. 10% weight concentration of MEG and 0.8% weight concentration of VP gave the least Hydrate Formation Temperature and highest temperature depression. This study will help a flow assurance engineer know the right proportion of MEG and VP to get the least Hydrate Formation Temperature at different pressure.

International Journal of Advances in Engineering and Management (IJAEM), 2021

Resistance and powering prediction analysis is a very important analysis during the initial des... more Resistance and powering prediction
analysis is a very important analysis during the
initial design phase of a vessel. It enables the naval
architect in determining the required propulsive
combinations needed in propelling the vessel more
economically during the vessel service life cycle.
This has become important for all moving marine
craft and as such need the necessary attention. This
paper aims at computing the bear hull resistance
and powering of a hypothetical supply vessel MV
queen, operating along the warri waters using the
Holtrop and menenn method. The total resistance
and powering of the given vessel fulfilling the
Holtrop and Menenn method is computed. This is
achieved by the computation of the various
resistance components such as the frictional
resistance, the appendages, the wave making
resistance, the added resistance due to wave, the
additional pressure resistance due to the transom
and the model –ship resistance were all computed
using the Holtrop and Menenn method. The
algorithm for this computations were developed.
Simple MATLAB scripts were written using the
developed algorithms and attempts were made in
comparing the programs with the supply vessel
particulars and using a standard commercial
software, the MAXSURF resistance module. The
results showed a good agreement for both cases.
The research is further discussed for applicable
feasibility in predicting ships resistance and
powering

Faculty of Science, University of Port Harcourt, Printed in Nigeria, 2023

The deregulation of the power and energy sector introduced a strong element of competition. Power... more The deregulation of the power and energy sector introduced a strong element of competition. Power plant operators try to develop techniques to maximize profits in the dynamic power industry. New methods of improving and optimizing simple gas turbine power plants are needed to enhance operational decision making and therefore to maximize power plant profitability by reducing operational and maintenance cost and increasing revenue. In this work, the thermodynamic model equations of both a simple gas turbine and regenerative gas turbine cycle were used to analyses the effect of increase in the regenerative effectiveness to the performance of the simple gas turbine. Microsoft Excel 2010 software was used to carried out the analysis. It was observed that for the simple gas turbine the thermal efficiency, heat rate, specific fuel consumption and heat addition have a constant value of 35.4%, 9630Btu/Kwh, 0.2768kg/Kwh, 44237.8Kw, all through, while for the regenerative gas turbine cycle as the value of the regenerative effectiveness increases from 0.8 to 1.0, the thermal efficiency increases from 41.1% to 65.0%, the heat rate decreases from 8753Btu/Kwh to 5536 Btu/Kwh , specific fuel consumption decreases from 0.248945122Kg/Kw.h to 0.157432413Kg/Kw.h and heat addition reduces from 39782.5Kw to 25158.4Kw. It was seen clearly that the regenerative gas turbine cycle has higher thermal efficiency compare to the simple gas turbine, and as the regenerative effectiveness of the regenerative gas turbine cycle increases
the performance of the regenerative gas turbine increases.

International Journal of Research Publication and Reviews, 2024

The Gas Turbine is unquestionably one of the most important inventions of the 20th century, which... more The Gas Turbine is unquestionably one of the most important inventions of the 20th century, which has been utilized across major industries which includes the power industry, aircraft sector, and technological industry. But the Gas Turbine has its own limitation like deterioration in performance during operation leading to reduce capacity and thermal efficiency, this led to the modification of gas turbine increase power and thermal efficiency. Therefore this work was performed on a simple gas turbine "AES BARGES" using the regenerative method and excel software to calculate and compute results. Result shows that after employing thermodynamics model to analyse the thermal efficiency, heat addition, specific fuel consumption and heat rate of a simple gas turbine, and further converting to simple gas turbine to regenerative with regenerative effectiveness of 0.8 to 1.0, the thermal efficiency was seen to be constant, the thermal efficiency for a regenerative cycle increase linearly while the heat addition, specific fuel consumption and heat rate reduces linearly as regenerative effectiveness increases. At regenerative effectiveness of 0.8-0.89, the thermal efficiency of the simple gas turbine is higher compare to the regenerative cycle, but from regenerative effectiveness of 0.90-1, the thermal efficiency of the regenerative cycle is higher compares to the simple gas turbine

International Journal of Research Publication and Reviews, 2024

This study explores the fabrication and testing of a straight forward, yet efficient two-refriger... more This study explores the fabrication and testing of a straight forward, yet efficient two-refrigerant blending plant. Motivated by the need for a cost-effective and versatile solution in refrigeration systems, the design focuses on simplicity while maintaining optimal performance. The blending plant combines two refrigerants, carefully selected for their compatibility and performance characteristics. This study unfolds in several key stages, beginning with a detailed conceptual design that prioritizes ease of fabrication and operational functionality. Utilizing computer-aided design (CAD) tools, the team develops 3D models and engineering drawings to guide the fabrication process. Material selection considers the thermodynamic properties required for effective refrigeration, ensuring durability and efficiency. The chosen materials undergo precision machining, welding, and assembly, guided by the overarching principle of facilitating ease of manufacturing and scalability. The fabrication involves precision machining, welding, and assembly to bring the components together into a cohesive system. Following fabrication, the blending plant undergoes rigorous testing procedures to validate its performance under varying conditions. Tests include assessments of refrigerant mixture ratios, pressure levels, and thermal efficiency. The results were analyzed against design specifications to ensure the plant meets industry standards and is suitable for diverse refrigeration applications. This study not only contributes a practical solution to refrigeration challenges but also serves as a foundational exploration into the efficient blending of refrigerants. The simplicity of the design enhances its accessibility for broader applications, making it a promising candidate for small-scale refrigeration systems. The objective is to offer a versatile solution for refrigeration systems that balances efficiency, affordability, and adaptability to diverse applications.

International Journal of Engineering and Modern Technology (IJEMT) , 2024

In this study Omotosho gas turbine plant was modified into three different configurations by inco... more In this study Omotosho gas turbine plant was modified into three different configurations by incorporating Inlet air cooler and Heat Recovery Steam Generator (HRSG). The reason for the modification is to improve its performance. Aspen Hysys software was used to simulate both the simple (Omotosho) and the three modified gas turbine plants. The results reviews that the three modified gas turbine plants has higher thermal efficiency compare to the Omotosho gas turbine plant. There is thermal efficiency increase from 34.94% for the Omotosho gas turbine to 47.44%, 43.93% and 45.21% for the first, second and third modifications respectively. Also, there was increase in the power output from 114 MW for the Omotosho gas turbine to 157 MW, 143 MW and 147 MW for the first, second and third modifications respectively. The higher thermal efficiency of the modified gas turbine plants leads to specific fuel consumption reduction from 0.2116 kg/kWh for the Omotosho gas turbine to 0.1136 kg/kWh, 0.1683 kg/kWh and 0.1611 kg/kWh for the first, second and third modifications respectively. The reduction in the specific fuel consumption in the three modified gas turbine also lead to reduction of heat rate from 10304.27 kJ/kWh for the Omotosho gas turbine to 7588.89 kJ/kWh, 8195.51 kJ/kWh and 7963.43 kJ/kWh for the first, second and third modifications respectively. The emission rate of the three modified gas turbine plants are lower than that of the Omotosho plant thereby leading to reduction in global warming and ozone layer depletion. It was observed that the first modification has the highest overall performance, followed by the third modification then finally the second.

Taraba Taraba Journal of Engineering and Technology (TAJET)

International Research Journal of Modernization in Engineering Technology and Science , 2021

It was discovered that particle size, compaction pressure and percentage composition have effects... more It was discovered that particle size, compaction pressure and percentage composition have effects on the briquette qualities. Higher compaction pressure increases the shattering index (durability) of the briquettes. Reduction in particle size increases the compaction ratio. The lower the burning rate the longer the briquette will burn compare to other samples and the higher particle size, there is increase in the burning rate, the lower the compaction pressure, higher volatile content and larger particle size decrease the ignition time of the briquette samples, it was also observed that increase in the particle size and reduction in the compaction pressure reduces water boiling time. It was concluded that 30 % mango nuts, 35 % cassava peels and 35 % orange peels have the lowest specific fuel consumption and has the highest calorific value.

International Research Journal of Modernization in Engineering Technology and Science, 2021

Ship behavior in seaway is critical in investigating the performance of vessel in seaway. This st... more Ship behavior in seaway is critical in investigating the performance of vessel in seaway. This study was aimed at predicting the seakeeping quality of an offshore pipelay vessel in coupled heave and pitch motion and to calculate the motion sickness index. To perform seakeeping analysis, the strip wave theory, basic governing equation of motion and the wave characteristics together with Runga-Kutta fourth order numerical method was used in order to calculate the Response Amplitude Operations (RAO), added mass and hydrodynamic damping coefficient, hydrodynamic forces of heave and pitch in each mode of motion. The JONSWAP wave theoretical spectra was used to describe the wave frequency. The vessel is operating off the West African seaway. This research represents a complete model of an offshore pipelaying vessel and the numerical solution are obtained using MATLAB. The MATLAB was used to generate and publish the hydrodynamic coefficient and RAO's.

International Research Journal of Engineering and Technology (IRJET) , 2019

In this study Hysys software was used to simulate the hydrate formation temperature at different ... more In this study Hysys software was used to simulate the hydrate formation temperature at different pressure with and without the use of inhibitors, I used the hybrid of thermodynamic Hydrate Inhibitor Methanol (MeOH) and kinetic Hydrate Inhibitors Vinylactamide (VIMA) and a pressure range of 3000 Psi to 5000 Psi to be able to determine the effects of the Hybrid Hydrate Inhibitor to the hydrate formation temperature at different pressures. 10% wt and 40% wt Concentration of Methanol were considered, and a 0.4%wt and 0.8% wt concentration of Vinylactamide were considered. After the simulation it was observed that 40% wt concentration of methanol and 0.8% wt concentration of Vinylactamide gave the least Hydrate formation Temperature and the highest temperature depression. This study makes it easy for a Flow Assurance Engineer to know the right proportion of the weight concentration of methanol and vinylactamide that will give the least hydrate formation temperature at certain pressure.

International Journal of Scientific Research and Engineering Development, 2021

Energy access is vital in improving living standards as well socioeconomic and technological deve... more Energy access is vital in improving living standards as well socioeconomic and technological development. Access to electricity has been a major challenge in Nigeria especially in rural areas as about 65% do not have access to electricity after much expenditure in the power sector. Electricity can be provided either by centralized grid based means or decentralized methods. Decentralized electrification involves generating electricity at or near the place where it will be used, this eliminates the challenges of high cost of grid extensive transmission network and inadequate generation capacity of the existing centralized power systems. This paper suggests that adopting the decentralized power generation system as done in South Africa, where each state generates its electricity using the prevalent energy source will increase electrification rate in Nigeria. Decentralizing electricity in Nigeria will lead to cheaper power, lower fuel use, reduced energy losses and lower levels of emissions compared to centralized grid.

International Journal of Research Publication and Reviews, 2022

The aim of this research is to select ROV Frame Material for Improved Performance in Varying Ocea... more The aim of this research is to select ROV Frame Material for Improved Performance in Varying Ocean Depth with the aid of MATLAB programming language and STAAD.Pro software by applying the numerical skills. This was achieved by first running a material test analysis on the frame of the ROV, then a stress analysis test is carried out on the material and sizes selected to determine if the ROV frame can withstand the stress on the material. The total force due to wave effect and total forces on the ROV is then computed using the MATLAB, then the power required to drive the ROV at different water depth of 50m, 500m and 1000m during the operation is computed. Based on the results, suitable material among the under study is selected. It can be deduced from the results that, the maximum internal displacement of the ROV frame that houses all the components is able to withstand over 50 kPa with an inner displacement of 5mm. The result when compared with the maximum allowable stress of steel of 210 was found to be satisfactory. The von mises stress of the ROV frame under load which is the value used to determine if a given material will yield or fracture under load was also computed during the ROV design. The von mises stress helps to show if the material will fail under the different impacted load on the ROV frame based on the nodal sub-region employ, and the areas or region with least impacted load as shown with blue coloration having a von mises stress less than 200.4665 kpa while the area or region with the most load impact or distribution is shown with red coloration with maximum von mises stress greater than or equal to 53.936212 Mpa. The design also computes the power required to drive the ROV and the power that will be require to drive the ROV though the maximum power of about 2000kw as the working power of the ROV. It was also observed that the minimum drive power of the ROV (250kw) was recorded at 1000m water depth. The task to determine how deep into ocean the Remotely Operated Underwater Vehicle can dive while maintaining a safety factor of 1.5 was also accomplish as Stainless steel 317, Titanium Grade 5 and Aluminium 7075 meet the factor of safety condition at water depth of 1000m.

International Journal of Advances in Engineering and Management (IJAEM), 2021

Hysy Software was used to Simulate hydrate formation temperature at different pressure using a pr... more Hysy Software was used to Simulate hydrate formation temperature at different pressure using a pressure range of 3000 psi to 5000, a hybrid of Mono-Ethylene Glycol (MEG) and Vinylcaprolactum (VP) was used to determine the Hydrate Formation temperature at different pressure. 10% weight and 40% weight concentration of MEG were added to 0.4% weight and 0.8% weight of VP respectively, it was observed that an increase in the weight concentration of MEG increases the hydrate formation Temperature at a specific pressure. 10% weight concentration of MEG and 0.8% weight concentration of VP gave the least Hydrate Formation Temperature and highest temperature depression. This study will help a flow assurance engineer know the right proportion of MEG and VP to get the least Hydrate Formation Temperature at different pressure.

International Journal of Advances in Engineering and Management (IJAEM), 2021

Resistance and powering prediction analysis is a very important analysis during the initial des... more Resistance and powering prediction
analysis is a very important analysis during the
initial design phase of a vessel. It enables the naval
architect in determining the required propulsive
combinations needed in propelling the vessel more
economically during the vessel service life cycle.
This has become important for all moving marine
craft and as such need the necessary attention. This
paper aims at computing the bear hull resistance
and powering of a hypothetical supply vessel MV
queen, operating along the warri waters using the
Holtrop and menenn method. The total resistance
and powering of the given vessel fulfilling the
Holtrop and Menenn method is computed. This is
achieved by the computation of the various
resistance components such as the frictional
resistance, the appendages, the wave making
resistance, the added resistance due to wave, the
additional pressure resistance due to the transom
and the model –ship resistance were all computed
using the Holtrop and Menenn method. The
algorithm for this computations were developed.
Simple MATLAB scripts were written using the
developed algorithms and attempts were made in
comparing the programs with the supply vessel
particulars and using a standard commercial
software, the MAXSURF resistance module. The
results showed a good agreement for both cases.
The research is further discussed for applicable
feasibility in predicting ships resistance and
powering