Engineering Manager - TVS

Larsen & Toubro; Chennai; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Larsen & Toubro in Chennai, India seeks an experienced design engineer for ECS/TVS ventilation systems for metro rail and tunnel projects. You will lead concept to detailed design development, perform ventilation and smoke control calculations, and size ductwork and equipment.

Responsibilities include CFD simulations with IDA Tunnel, SES, FDS, reviewing vendor data, coordinating with multiple disciplines, and supporting construction, testing, and documentation activities.

Qualifications

• Experience in ECS and TVS ventilation design for metro rail/tunnel projects.
• Proficient in ventilation calculations and CFD for normal and emergency scenarios.
• Familiar with NFPA 130, ASHRAE, ISHRAE and NBC project standards.
• Ability to review drawings, submittals and participate in design reviews.

Responsibilities

• Develop concept, preliminary, and detailed designs for ECS/TVS systems for metro rail and tunnels.
• Perform ventilation and smoke control calculations including airflow and heat loads.
• Design and size supply, exhaust, smoke extraction systems and associated ductwork.
• Carry out CFD simulations using IDA Tunnel, SES, and FDS; interpret results for validation.
• Prepare layouts, schematics, single-line diagrams, and P&IDs for ECS/TVS.
• Coordinate with Civil, Architectural, Electrical and BIM teams for integrated design.
• Ensure designs meet NFPA 130, ASHRAE, ISHRAE, NBC and project requirements.
• Review vendor drawings, submittals, equipment datasheets, and CFD reports.
• Support safety audits, authority submissions, and client presentations.
• Assist site teams during construction, testing, commissioning and as-built stages.
• Prepare technical specifications, BOQs, and cost estimates for ECS/TVS.

Skills

Ventilation design

CFD analysis

Systems integration

Code compliance

P&IDs & schematics

Vendor reviews

Tools

IDA Tunnel

SES

FDS

Job description

• Develop concept, preliminary, and detailed designs for ECS and TVS systems for metro rail and tunnel projects.
• Perform ventilation and smoke control calculations, including airflow, heat loads, piston effect, and emergency operation scenarios.
• Design and size supply, exhaust, smoke extraction systems, fans, dampers, silencers, shafts, louvers, and associated ductwork.
• Carry out and review CFD simulations for normal and emergency ventilation using tools such as IDA Tunnel, SES, FDS.
• Interpret CFD results to validate system performance and support design optimization and safety compliance.
• Prepare and review system layouts, schematics, single-line diagrams, and P&IDs for ECS and TVS systems.
• Coordinate with Civil, Architectural, Electrical, Fire, ELV, BIM, and other systemwide contractors to ensure integrated designs.
• Ensure designs comply with applicable standards such as NFPA 130, ASHRAE, ISHRAE, NBC, and project specific requirements.
• Review vendor drawings, technical submittals, equipment datasheets, and CFD reports. Support design reviews, safety audits, authority submissions, and client presentations.
• Assist site teams during construction, testing, commissioning, and as-built documentation stages.
• Prepare technical specifications, B.o.Qs, and cost estimates for ECS and TVS systems.