A simulation-based prediction model for coal-fired power plant condenser maintenance

Mathews, I.; Mathews, E.H.; Laar, J.H. van; Hamer, W.; Kleingeld, M.

doi:10.1016/j.applthermaleng.2020.115294

Cited by 19 publications

(9 citation statements)

References 37 publications

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“…Using this process we have developed, over the past four decades, simulation software to solve complex engineering networks e.g., in deep mines and industrial complexes ( 149 ). Fortunately, in engineering it is easy to develop transfer functions (Equation 1) as it is relatively easy to do the required measurements.…”

Section: Discussion and Future Researchmentioning

confidence: 99%

Using a Systems Approach to Explore the Mechanisms of Interaction Between Severe Covid-19 and Its Coronary Heart Disease Complications

Meyer

Mathews

Gous

et al. 2022

Front. Cardiovasc. Med.

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Frontiers requested research on how a systems approach can explore the mechanisms of cardiovascular complications in Covid-19. The focus of this paper will thus be on these detailed mechanisms. It will elucidate the integrated pathogenic pathways based on an extensive review of literature. Many severe Covid-19 cases and deaths occur in patients with chronic cardiovascular comorbidities. To help understand all the mechanisms of this interaction, Covid-19 complications were integrated into a pre-existing systems-based coronary heart disease (CHD) model. Such a complete model could not be found in literature. A fully integrative view could be valuable in identifying new pharmaceutical interventions, help understand how health factors influence Covid-19 severity and give a fully integrated explanation for the Covid-19 death spiral phenomenon seen in some patients. Covid-19 data showed that CHD hallmarks namely, Hypercoagulability, Hypercholesterolemia, Hyperglycemia/Hyperinsulinemia, Inflammation and Hypertension have an important effect on disease severity. The pathogenic pathways that Covid-19 activate in CHD were integrated into the CHD model. This fully integrated model presents a visual explanation of the mechanism of interaction between CHD and Covid-19 complications. This includes a detailed integrated explanation of the death spiral as a result of interactions between Inflammation, endothelial cell injury, Hypercoagulability and hypoxia. Additionally, the model presents the aggravation of this death spiral through the other CHD hallmarks namely, Hyperglycemia/Hyperinsulinemia, Hypercholesterolemia, and/or Hypertension. The resulting model further suggests systematically how the pathogenesis of nine health factors (stress, exercise, smoking, etc.) and seven pharmaceutical interventions (statins, salicylates, thrombin inhibitors, etc.) may either aggravate or suppress Covid-19 severity. A strong association between CHD and Covid-19 for all the investigated health factors and pharmaceutical interventions, except for β-blockers, was found. It is further discussed how the proposed model can be extended in future to do computational analysis to help assess the risk of Covid-19 in cardiovascular disease. With insight gained from this study, recommendations are made for future research in potential new pharmacotherapeutics. These recommendations could also be beneficial for cardiovascular disease, which killed five times more people in the past year than Covid-19.

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Section: Discussion and Future Researchmentioning

confidence: 99%

Using a Systems Approach to Explore the Mechanisms of Interaction Between Severe Covid-19 and Its Coronary Heart Disease Complications

Meyer

Mathews

Gous

et al. 2022

Front. Cardiovasc. Med.

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show abstract

“…These simulation programs are a crucial part of mine ventilation systems' planning and energy optimisation processes [10], [14]. A wide range of software is available, a number of which are commercially available, such as [13], [15]:…”

Section: Dynamic Nature Of Mine Ventilation Systemsmentioning

confidence: 99%

“…VUMA-transient was developed to simulate temperature variations, but no literature was found on the application thereof to an entire mining network [19], [20]. PTB is a thermodynamic simulation software that is capable of incorporating transient heat exchange processes, but it has not yet been applied to an entire mine ventilation system [15].…”

Section: Dynamic Nature Of Mine Ventilation Systemsmentioning

confidence: 99%

“…The thermohydraulic simulation software Process Toolbox (PTB) was used for this study. PTB is a onedimensional computational fluid dynamics (CFD) code that is capable of solving complex thermo-hydraulic networks, such as mine ventilation systems [15], [21], [22].…”

Section: Technical Overview Of Process Toolboxmentioning

confidence: 99%

“…The pressure matrix is linearised to guarantee convergence for every step so that no iterations are required. This is valuable in industrial scenarios such as mine ventilation systems [15].…”

Section: Technical Overview Of Process Toolboxmentioning

confidence: 99%

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Simulating the Sensitivity of Underground Ventilation Networks to Fluctuating Ambient Conditions

Fair

Laar

Nell³

et al. 2021

SAJIE

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The weather directly impacts ventilation systems, especially large industrial systems found in underground mines. Underground mine ventilation systems have high cost implications that add to the financial strains and uncertainties of future mining operations. In addition, the dynamic nature of underground ventilation systems makes the accurate prediction of underground conditions extremely difficult using traditional steady-state methods. Therefore, improved prediction methods of dynamic underground environmental conditions are needed to ensure cost-effective ventilation systems. This paper investigates simulating the sensitivity that underground ventilation systems have to fluctuating ambient conditions. Simulation software was applied to a case study on a gold mine in South Africa. The results showed that transient software can now be applied to entire mine ventilation systems, and can improve predicting the underground environment because of fluctuating ambient conditions.

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A Research for Computerized Maintenance Management System and Predictive Maintenance Investments in Turkish Industry

Aydıner

Kubilay

2021

Artificial Intelligence Systems and the Internet of Things in the Digital Era

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A simulation-based prediction model for coal-fired power plant condenser maintenance

Cited by 19 publications

References 37 publications

Using a Systems Approach to Explore the Mechanisms of Interaction Between Severe Covid-19 and Its Coronary Heart Disease Complications

Using a Systems Approach to Explore the Mechanisms of Interaction Between Severe Covid-19 and Its Coronary Heart Disease Complications

Simulating the Sensitivity of Underground Ventilation Networks to Fluctuating Ambient Conditions

A Research for Computerized Maintenance Management System and Predictive Maintenance Investments in Turkish Industry

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