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Experimental investigations on the thermal characteristics of domestic convectors. (2024)
Journal Article
GIBB, D., OLIPHANT, J., MCINTOSH, R.G., ASIM, T. and KARNIK, A. 2024. Experimental investigations on the thermal characteristics of domestic convectors. Energies [online], 17(5), article number 1017. Available from: https://doi.org/10.3390/en17051017

Better understanding of local thermal characteristics of domestic convectors could play a crucial role in reducing energy consumption for space heating and decarbonizing the economy. The current study evaluates the impact of varying water inlet tempe... Read More about Experimental investigations on the thermal characteristics of domestic convectors..

Analytical modelling of the hydraulic effect of hydrate deposition on transportability and plugging location in subsea gas pipelines. (2023)
Journal Article
UMUTEME, O.M., ISLAM, S.Z., HOSSAIN, M. and KARNIK, A. [2023]. Analytical modelling of the hydraulic effect of hydrate deposition on transportability and plugging location in subsea gas pipelines. Proceedings of the Institution of Mechanical Engineers, Part C: journal of mechanical engineering science [online], Online First. Available from: https://doi.org/10.1177/09544062231196986

Accurate prediction of the hydraulic effect of hydrate deposition and plug location is critical to the safety and operability of natural gas transport pipelines, especially for gas-dominant subsea pipelines where maintenance and intervention activiti... Read More about Analytical modelling of the hydraulic effect of hydrate deposition on transportability and plugging location in subsea gas pipelines..

Modelling hydrate deposition in gas-dominant subsea pipelines in operating and shutdown scenarios. (2023)
Journal Article
UMUTEME, O.M., ISLAM, S.Z., HOSSAIN, M. and KARNIK, A. 2023. Modelling hydrate deposition in gas-dominant subsea pipelines in operating and shutdown scenarios. Sustainability [online], 15(18), article number 13824. Available from: https://doi.org/10.3390/su151813824

This study addresses a significant research gap related to hydrate formation in subsea gas pipelines, with a specific focus on deposition rates during shutdown scenarios, which has received limited attention in previous studies. Past research has emp... Read More about Modelling hydrate deposition in gas-dominant subsea pipelines in operating and shutdown scenarios..

Computational fluid dynamics simulation of natural gas hydrate sloughing and pipewall shedding temperature profile: implications for CO2 transportation in subsea pipeline. (2023)
Journal Article
UMUTEME, O.M., ISLAM, S.Z., HOSSAIN, M. and KARNIK, A. 2023. Computational fluid dynamics simulation of natural gas hydrate sloughing and pipewall shedding temperature profile: implications for CO2 transportation in subsea pipeline. Gas science and engineering [online], 116, article number 205048. Available from: https://doi.org/10.1016/j.jgsce.2023.205048

The continuous flow assurance in subsea gas pipelines relies heavily on the assessment of temperature profile during hydrate sloughing and pipewall shedding caused by hydrates, with similar implications for carbon dioxide (CO2) transportation under h... Read More about Computational fluid dynamics simulation of natural gas hydrate sloughing and pipewall shedding temperature profile: implications for CO2 transportation in subsea pipeline..

Adaptive swarm optimisation assisted surrogate model for pipeline leak detection and characterisation. (2023)
Thesis
ADEGBOYE, M.A. 2023. Adaptive swarm optimisation assisted surrogate model for pipeline leak detection and characterisation. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2071535

Pipelines are often subject to leakage due to ageing, corrosion and weld defects. It is difficult to avoid pipeline leakage as the sources of leaks are diverse. Various pipeline leakage detection methods, including fibre optic, pressure point analysi... Read More about Adaptive swarm optimisation assisted surrogate model for pipeline leak detection and characterisation..

Pipeline leakage detection and characterisation with adaptive surrogate modelling using particle swarm optimisation. (2022)
Conference Proceeding
ADEGBOYE, M.A., KARNIK, A., FUNG, W.-K. and PRABHU, R. 2022. Pipeline leakage detection and characterisation with adaptive surrogate modelling using particle swarm optimisation. In Proceedings of the 9th International conference on soft computing and machine intelligence 2022 (ISCMI 2022), 26-27 November 2022, Toronto, Candada. Piscataway: IEEE [online], pages 129-134. Available from: https://doi.org/10.1109/iscmi56532.2022.10068436

Pipelines are often subject to leakage due to ageing, corrosion, and weld defects, and it is difficult to avoid as the sources of leakages are diverse. Several studies have demonstrated the applicability of the machine learning model for the timely p... Read More about Pipeline leakage detection and characterisation with adaptive surrogate modelling using particle swarm optimisation..

An improved computational fluid dynamics (CFD) model for predicting hydrate deposition rate and wall shear stress in offshore gas-dominated pipeline. (2022)
Journal Article
UMUTEME, O.M., ISLAM, S.Z., HOSSAIN, M. and KARNIK, A. 2022. An improved computational fluid dynamics (CFD) model for predicting hydrate deposition rate and wall shear stress in offshore gas-dominated pipeline. Journal of natural gas science and engineering [online], 107, article 104800. Available from: https://doi.org/10.1016/j.jngse.2022.104800

Gas hydrates in pipelines is still a flow assurance problem in the oil and gas industry, and requires a proactive hydrate plugging risk predicting model. As an active area of research, this work has developed a 3D 10m length by 0.0204m diameter horiz... Read More about An improved computational fluid dynamics (CFD) model for predicting hydrate deposition rate and wall shear stress in offshore gas-dominated pipeline..

CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation. (2021)
Journal Article
DURKACZ, J., ISLAM, S., CHAN, R., FONG, E., GILLIES, H., KARNIK, A. and MULLAN, T. 2021. CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation. Energy reports [online], 7(Supplement 3): 6th International conference on advances on clean energy research 2021 (ICACER 2021), 15-17 April 2021, [virtual conference], pages 119-126. Available from: https://doi.org/10.1016/j.egyr.2021.06.019

This study aims to improve the applicability of Vertical Axis Wind Turbines (VAWTs) by investigating their feasibility in a novel planetary cluster configuration by observing its effect on efficiency and overall power density. Computational Fluid Dyn... Read More about CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation..

Numerical study of pipeline leak detection for gas-liquid stratified flow. (2021)
Journal Article
ADEGBOYE, M.A., KARNIK, A. and FUNG, W.-K. 2021. Numerical study of pipeline leak detection for gas-liquid stratified flow. Journal of natural gas science and engineering [online], 94, article 104054. Available from: https://doi.org/10.1016/j.jngse.2021.104054

Multiphase flows are of paramount importance in the oil and gas industry, considering that most petroleum industries produce and transport oil and gas simultaneously. However, systematic research on pipeline leakage conveying more than one phase at a... Read More about Numerical study of pipeline leak detection for gas-liquid stratified flow..

Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. (2020)
Thesis
ADEWOYE, A.J. 2020. Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1357822

Hydrocyclone is used to separate particles from produced water. It can be used in different industries, including oil and gas, water treatment and pharmaceutical (among others). The hydrocyclone can effectively separate particles larger than 10μm, bu... Read More about Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry..