Tunnel Ventilation - Senior Engineer

• About Egis: Egis is a French based leading global consulting, construction engineering and operating firm present in Middle East, Europe, India, Latin America, Africa & Asia Pacific with 18,000 employee strength globally (more than 6000 in Middle East & India). Recognised Engineering & Consulting expertise in Transportation, Sustainable cities, Water, Marine, Energy etc along with operation & mobility projects. We work side by side with clients to build a more balanced, sustainable, and resilient world. To explore more about Egis, please visit Egis – Creating a sustainable future (egis-group.com)

Bachelor's/Master’s Degree in Mechanical recognized institution with relevant exp in middle east Projects

8-10 years of experience 

Key Responsibilities 

• Design and Analysis: 

• Develop and optimize tunnel ventilation systems, ensuring compliance with HVAC and FLS standards. 

• Perform CFD analysis for smoke control, air distribution, and pollutant dispersion within tunnel environments. 

• Ensure designs adhere to regulatory requirements and international safety standards. 

• Project Management: 

• Collaborate with project teams and stakeholders to design and implement ventilation and safety systems for various tunnel types (road, rail, utility). 

• Conduct project-specific risk assessments and hazard analysis to validate ventilation designs. 

• Prepare technical documentation and reports, including ventilation strategies, compliance assessments, and safety analyses. 

• Technical Expertise: 

• Apply best practices in tunnel ventilation, including longitudinal, transverse, and semi-transverse systems. 

• Use CFD software (e.g., ANSYS Fluent, OpenFOAM, or similar) to simulate and analyze airflow and thermal conditions under various operational scenarios. 

• Assess environmental impacts of ventilation systems, focusing on energy efficiency and emissions control. 

• Field and Site Support: 

• Participate in on-site inspections and field tests to validate CFD model results and assess ventilation performance. 

• Work closely with construction teams during implementation phases to ensure design compliance and address engineering challenges. 

• Coordination and Collaboration: 

• Coordinate with multi-disciplinary teams, including civil, structural, and electrical engineers, to integrate ventilation systems within overall tunnel design. 

• Engage with fire safety experts and local regulatory bodies for design approvals and compliance reviews. 

• Reporting and Documentation: 

• Develop detailed technical reports and presentations for internal and external stakeholders. 

• Document lessons learned and contributed to knowledge sharing and technical improvements for future projects. 

Qualifications and Skills 

• Education: Bachelor’s degree in mechanical engineering, HVAC, or a related field. Master’s degree or specialization in tunnel ventilation is a plus. 

• Experience: 8-10 years in HVAC and FLS engineering, with a focus on tunnel ventilation and safety systems. 

• Technical Skills: 

• Proficiency in CFD software and analysis methods relevant to HVAC and ventilation. 

• Familiarity with industry standards (e.g., NFPA 502, ASHRAE guidelines, PIARC, and EU guidelines for tunnel ventilation). 

• Experience with KSA regulations and regional projects is highly preferred. 

• Soft Skills: 

• Strong problem-solving and analytical skills. 

• Effective communication and teamwork abilities, especially in multi-disciplinary and cross-cultural settings. 

Software Skills 

CFD Analysis Software: 

1. ANSYS Fluent – For advanced airflow, smoke dispersion, and thermal analysis. 

1. OpenFOAM – Open-source software for custom CFD modeling and simulation. 

1. STAR-CCM+ – For comprehensive simulation of ventilation and fire scenarios. 

1. CFD-FEA Tools (e.g., Autodesk CFD) – For detailed fluid flow and thermal modeling in tunnels. 

Tunnel-Specific Ventilation Tools: 

1. SES (Subway Environment Simulation) – For designing and analyzing ventilation in subways and tunnels. 

1. IDAS (Integrated Design and Analysis Software) – Used for safety analysis in tunnel environments. 

1. Ventsim/Ventilation Simulation Software – Focused on airflow simulation in underground environments. 

General HVAC and Mechanical Design Software: 

1. Revit MEP – For designing mechanical, electrical, and plumbing systems in 3D. 

1. AutoCAD – For drafting ventilation layouts and mechanical schematics. 

1. DIALux (optional) – For assessing lighting impact in tunnels, if relevant. 

Fire and Life Safety Analysis: 

1. FDS (Fire Dynamics Simulator) – For modeling fire growth, smoke movement, and evacuation scenarios. 

1. PyroSim – GUI-based tool for FDS to simulate fire and evacuation in tunnels. 

Project Management and Collaboration Tools: 

1. Navisworks – For clash detection and multi-disciplinary design coordination. 

1. Primavera P6 or MS Project – For project scheduling and resource planning. 

Regulatory and Energy Simulation Tools: 

1. ASHRAE Energy Modeling Software (e.g., Trane TRACE 700, IES VE) – For energy efficiency analysis of ventilation systems. 

1. Compliance Check Software – Tools aligned with regional KSA codes and international tunnel standards.