Mining Experts

Howden has gathered a group of world leading experts in mining applications


Including a mining Hall of Fame nominee, developers of world leading mining software and innovators who have brought new products to the mining world, the Howden mining team are experts in the field of mining ventilation.

Between them they have produced some exciting mining content that can help you ventilate your mine. Get to know them each below...

Mining Experts presenting solution

Craig Stewart

Mining Experts
  • Mining engineer with 26 years of experience in underground mining and ventilation, including over 10 years as a Mine Operations Manager
  • Developer of Ventsim™ software and founder of Chasm Consulting
  • Ventilation consultant and training for mine personnel, government agencies and university staff and students
  • Currently Manager of Howden - Chasm Consulting
  • MSc BEng Mining Engineer and current PhD Student for Mine Ventilation

Managing Director

Founder of Chasm Consulting and Creator of Ventsim

Instrumental in the development in the VentSim Solution suite of software products

International Mining Technology Hall of Fame nominee

LinkedIn: View profile


MSc MEng Mining University South Australia 1989

PhD Candidate 2014…Current University of Queensland




Use of Live Sensor Data in Transient Simulations of Mine Ventilation Models. International Conference on Fibre-optic and Photonic Sensors for Industrial and Safety Applications 2015

Emergency Egress Pathway Prediction Using Ventilation Models The Australian Mine Ventilation Conference 2017

Practical prediction of blast fume clearance and workplace re-entry times in development headings. 10th International Mine Ventilation Congress, IMVC 2014

Predictive Network Modelling with Live Sensor Data Fibre-optic and Photonic Sensors for Industrial and Safety Applications 2017

Underground Fire Rollback Simulation in Large Scale Ventilation Models 15th North American Mine Ventilation Symposium, Golden, CO, 2015

Diurnal Thermal Flywheel Influence on Ventilation Temperatures in Large Underground Mines 16th North American Mine Ventilation Symposium, Golden, CO, 2017

Applications of modelling software for safety and health training in US underground coal mines 16th North American Mine Ventilation Symposium, Golden, CO, 2017


Curso de ventilación para minas - Empresa Noova7

Vídeo explicativo a cargo de expositor Craig Stewart 19/12/2015

Vídeo Decano Ing. José Corimanya y Craig Stewart parte 1

Entrevista a Craig Stewart (expositor curso Ventsim y Pumpsim)

Peter Terkovics

Mining Experts
  • Mechanical Engineer with 29 years of experience in industrial process heating and underground mine air heating systems design, sales, installation and commissioning
  • Developed ACI M.I.DTM, SIMPLEXTM and MDAHTM modular heating systems
  • Co-Founded AFS (Advanced Fan Systems)
  • Responsible for global sales growth of ACI-Canefco and AFS as well as marketing and global brand recognition
  • B.Eng., P.Eng., Mechanical Engineer
  • G1 and LP licensed natural gas and liquid propane technician
  • Member of CSA B149.3 standards committee

Vice President – Sales, ACI - A Howden Company

Achieved global recognition and increased sales growth of ACI and its products by over 2500%

Co-Founded AFS (Advanced Fan Systems)

Developed ACI - M.I.DTM, SIMPLEXTM and MDAHTM modular mine heating systems

Created ACI-Labrador LP QBE (business entity) with Canadian First Nations

Negotiated and secured the exclusive ventilation and heating contracts with the Vale, Voisey Bay Mine Site

LinkedIn: View profile


B.Eng. (Mechanical), Toronto, ON – Ryerson University, 1989

P.Eng., Professional Engineer

Member | CSA B149.3 Approvals Committee

Registered Nevada State Contractor

G1 Gas Fitter

LP Gas Fitter



German (conversational)


"Heating of Mine Ventilation Air" 2014 International Mine Ventilation Congress, IMVC2014, South Africa


Benoit Dussault

Mining Experts
  • Leading the development of multiple world-class industrial solutions including Ventsim™ CONTROL.
  • Senior software developer with 11 years of experience in software engineering for the mining and HVAC industries.

Software Team Leader

LinkedIn: View profile


Specialized Graduate Diploma, Software Engineering, École de technologie supérieure, Montreal

Diploma of College Studies, Electronics Technology, Collège Ahuntsic, Montreal


English, French

Hugo Dello Sbarba

Mining Experts

Director of Engineering

LinkedIn: View profile


Universite Laval – Masters of Science, Mining engineering

Concordia University – Bachelor of Engineering, Mechanical






Economics of exhaust air heat recovery systems for mine ventilation International Journal of Mining, Reclamation and Environment, 2012

Master thesis: Heat recovery systems in underground mines and novel cooling systems Universite Laval, 2012

SmartEXEC Mine Ventilation On Demand System at the Xstrata Nickel Rim South Mine, Sudbury, Ontario; Implementation and Results to Date SME Annual Meeting, 2012

Apects of heat recovery systems in underground mine ventilation systems. 2009

Heat recovery systems in mine ventilation. 2009

Model feasibility study of a mine exhaust air ventilation heat recovery system NAMVS 2012

The not so obvious advantage of using Variable Frequency Drives (VFDs) for underground auxiliary fans LinkedIn, 2018

The future of Ventilation Automation, Global Mining Review 2018


Ventsim CONTROL Software

Hugo Dello Sbarba explains why he loves Ventsim CONTROL software.

Ventsim CONTROL Ventilation Improvements

Hugo Dello Sbarba talks about the savings that can be made with even the smallest change in ventilation.

Glenn Savage

Mining Experts
  • Application Engineer with 14 years experience in bearing and power transmission technologies and 18 years of experience in fans and fan systems, heating and cooling for underground mine ventilation systems and industrial processes. Incorporating Application Engineering, Design Engineering, Systems Engineering (mechanical, acoustic and aerodynamic), manufacturing process, testing, installation and commissioning.
  • Developed specialised water washing systems for fans.
  • Developed methane drainage technologies.
  • Developed specialised 3D modelling for fans.
  • Developed specialised fan designs.
  • Developed series of mechanical design improvements for efficiency and productivity improvements across a range of industrial process equipment.
  • Responsible for Global Applications Engineering of Ventilation Systems for underground mining - Howden.
  • Training and Workshop delivery at industry conferences, industry consultation engineering firms and direct to mine site personnel.

Global Mining Applications Engineer – Howden

Applications Engineering for Oyu Tolgoi Mine – Mongolia, phase 1 and phase 2 primary ventilation and heating systems.

Applications Engineering Rampura Agucha Mine – India, primary ventilation systems.

Applications Engineering Woodsmith Mine – UK, primary and secondary ventilation systems, concept study engineering delivery and workshops.

Applications Engineering for underground mine ventilation systems for various mining houses, Rio Tinto, Anglo American, Codelco, Hindustan Zinc, BHPB and more.


Diploma Mechanical Engineer





Delivered Fans and Fan System Workshop (author Kevin Lownie); 2014 International Mine Ventilation Congress, IMVC2014, South Africa.

Delivered Fans and Fan System Workshop (author Kevin Lownie); 2017 North American Mine Ventilation Symposium, NAMVS2017, Colorado US.

Delivered Fans and Fan System Workshop (author Kevin Lownie); 2018 Hindustan Zinc, Rampura Agucha Mine.


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