A Review of Primary Mine Ventilation System Optimization

Acuña, Enrique; Lowndes, I.S.

doi:10.1287/inte.2014.0736

Cited by 36 publications

(27 citation statements)

References 7 publications

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“…Kirchhoff's second law states that the sum of the pressure drops around any closed path must be equal to zero. Pressure differences and head losses are analogous to voltage, electrical current is analogous to volumetric airflow rate and electrical resistance is analogous to airflow resistance [59,[77][78][79][80]. This approach provides a useful framework when developing an equivalent electrical circuit for a blade.…”

Section: Normal Tangential Lift and Drag Impedancesmentioning

confidence: 99%

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

et al. 2015

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Models are crucial in the engineering design process because they can be used for both the optimization of design parameters and the prediction of performance. Thus, models can significantly reduce design, development and optimization costs. This paper proposes a novel equivalent electrical model for Darrieus-type vertical axis wind turbines (DTVAWTs). The proposed model was built from the mechanical description given by the Paraschivoiu double-multiple streamtube model and is based on the analogy between mechanical and electrical circuits. This work addresses the physical concepts and theoretical formulations underpinning the development of the model. After highlighting the working principle of the DTVAWT, the step-by-step development of the model is presented. For assessment purposes, simulations of aerodynamic characteristics and those of corresponding electrical components are performed and compared.

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Section: Normal Tangential Lift and Drag Impedancesmentioning

confidence: 99%

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

et al. 2015

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“…Substantial research indicates that complex systems can only be thoroughly evaluated with the use of simulations [13,14,15,16]. With the arrival of the digital age, simulation technologies have been incorporated to design large and complex mine ventilation networks [4].…”

Section: Modelling and Simulation Of Mine Ventilation Networkmentioning

confidence: 99%

“…Recent technological advancements coupled with innovative methods may, however, enable mines to evaluate operational changes more accurately and costeffectively, resulting in improved decision-making capabilities. Several researchers have addressed techniques to model and optimise sections of mine ventilation networks [4,16]. Acuna and Lowndes (2014) conducted a review of such studies, showing that there is still a knowledge deficit in addressing the effects of both cost and service delivery in ventilation optimisation techniques [16].…”

Section: Modelling and Simulation Of Mine Ventilation Networkmentioning

confidence: 99%

“…Several researchers have addressed techniques to model and optimise sections of mine ventilation networks [4,16]. Acuna and Lowndes (2014) conducted a review of such studies, showing that there is still a knowledge deficit in addressing the effects of both cost and service delivery in ventilation optimisation techniques [16]. The techniques used in industry do not incorporate simulations, but include tedious manual calculations [16].…”

Section: Modelling and Simulation Of Mine Ventilation Networkmentioning

confidence: 99%

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Evaluating complex mine ventilation operational changes through simulations

Nel¹,

Vosloo²,

Mathews³

2018

J. energy South. Afr.

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Increasing the profitability of the mining industry is contingent on its ability to improve operational efficiency. Mine ventilation networks typically represent 25-50% of a mine's energy consumption and, therefore, exhibits scope for optimisation. Ventilation networks comprise numerous complex integrated airways, branches and ventilation fans. The most effective way to optimise and evaluate them is computer-aided simulations. However, no framework exists to clarify exactly how operational changes in ventilation networks should be evaluated. In this study, a scalable method was developed, implemented and analysed. The case study validation resulted in satisfying key performance indicators of both service delivery and operational energy costs, thereby increasing operational efficiency. The significance of the novel method is that it allows for improved operational decisions on mine ventilation networks. The value of the method was illustrated by the adoption of the method by the case study mining personnel to form the new norm of their procedures and standards.

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“…According to Acuña and Lowndes (2014) power requirements are proportional to the cube of the airflow as presented in Equation (1). Deep Mining 2014, Sudbury, Canada…”

Section: Vod Benefitsmentioning

confidence: 99%

Considering ventilation on demand for the developments of the New Level Mine Project, El Teniente

Acuña¹,

Feliú²

2014

Proceedings of the International Conference on Deep and High Stress Mining

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The New Level Mine Project (NLMP) underground expansion represents the future of the El Teniente mines in Rancagua, Chile. With the expansion, the daily production rate is expected to be between 137 ktpd and a maximum of 180 ktpd. This represents an increase of slightly over 30% production for the project. The current plan consists of two multi-year development phases from 2012 to 2014 and from 2015 to 2017, with production planned to start in the end of 2017 or early 2018. The underground development of the NLMP starting from both surface and the current underground workings is already underway. However, the limited availability of airflow for development and energy to increase the mine's ventilation for the 2012 to 2014 period motivated the study of ventilation mitigation strategies such as ventilation on demand to determine if it is possible to expand the number of working faces available, in an attempt to optimise the use of the current resources of the project such as energy. The ultimate objective is to accelerate daily development rates, which will produce additional savings and an increase of the value of the New Level Mine project. This paper presents the results of a preliminary study to estimate the cost and benefits of implementing ventilation on demand to increase the number of working faces and their energy efficient operation for the 2012 to 2014 development phase. The mine's current ventilation strategy for the development of the NLMP is presented and used as the baseline to assess ventilation on demand. The results and decision are discussed in terms of the potential additional value generated by implementing the ventilation on demand strategy, considering energy savings, other benefits that are expected and the time required to pay for the initial capital cost. https://papers.acg.uwa.edu.au/p/1410_59_Acuna/ Considering ventilation on demand for the developments of the New Level Mine Project,

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A Review of Primary Mine Ventilation System Optimization

Cited by 36 publications

References 7 publications

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

Evaluating complex mine ventilation operational changes through simulations

Considering ventilation on demand for the developments of the New Level Mine Project, El Teniente

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