Chennai Metro Rail wins award for solution of phase-2 project

24 Jul 2024 CW Team

According to a release, a tunnel ventilation solution developed by Chennai Metro Rail Limited (CMRL) that contributed to cost reductions in the phase-2 project has been honored at the 20th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels (ISAVFT 2024). The award, scheduled to be presented during the symposium in Copenhagen, Denmark, from October 28 to 30, falls under the category of ?sustainability in underground design and construction?.

In a paper titled "Chennai Metro, India- A case study", authored by Hari Prasad, AGM (mechanical system) at CMRL, and R Singh S Vassoudevane from Systra Infrastructure, the challenges of designing underground stations in densely populated cities were explored. One major challenge highlighted was the limited space available, which necessitates minimizing the footprint of essential service areas such as electrical and mechanical rooms. This optimization is crucial while ensuring functionality, passenger experience, comfort, and safety.

The study aimed at optimizing the layout of ventilation systems within Chennai Metro Rail to achieve space and cost savings. One proposed strategy involved placing a tunnel ventilation fan (TVF) at one end of the station and utilizing it selectively when tunnel ventilation and trackway exhaust were unnecessary. This approach reduced the number of fans required from eight to two, resulting in substantial savings in space and costs. Furthermore, the study demonstrated that even with a single TVF, the system meets all fire safety standards.

The release attributed the savings realized in the Chennai Metro Rail phase-2 project to the optimization of civil space, reduction in fan numbers, and decreased requirements for connected electrical load and cabling.

Infrastructure Energy

17 Dec 2025

Vedanta Aluminium Uses 1.57 bn Units of Green Energy in FY25

Vedanta Aluminium, India’s largest aluminium producer, recently reported consumption of 1.57 billion units of renewable energy in FY25, marking a significant milestone in its 2030 decarbonisation roadmap. The company also achieved an 8.96 per cent reduction in greenhouse gas (GHG) emissions intensity compared to FY21, reinforcing its leadership in India’s low-carbon manufacturing transition. During FY25, Vedanta Aluminium expanded its renewable energy portfolio through long-term power purchase agreements, strengthening its strategy to source nearly 1,500 MW of renewable power over the lon..

Oberoi Group to Develop Luxury Resort at Makaibari Tea Estate

EIH Limited, the flagship company of The Oberoi Group, has announced the signing of a management agreement to develop an Oberoi luxury resort at the iconic Makaibari Tea Estate in Darjeeling. The project marks a key milestone in the Group’s long-term strategy of creating distinctive hospitality experiences in rare and environmentally significant locations. Established in 1859, Makaibari is one of the world’s oldest tea estates and is globally recognised for its Himalayan landscape, primary forests and exceptional biodiversity. Spread across 1,236 acres, the estate houses one of the world�..

GHV Infra Secures Rs 1.09 Bn EPC Order in Jamshedpur

GHV Infra Projects Ltd, a fast-growing EPC company in India’s infrastructure and construction sector, has recently secured a Rs 1.09 billion work order in Jamshedpur, Jharkhand. Awarded by a reputed group entity, the contract covers end-to-end civil construction, mechanical, electrical and plumbing (MEP) systems, along with high-quality finishing works for a large building development. The project will be executed over a 30-month period, with defined benchmarks for quality, safety and timely delivery. The order strengthens GHV Infra’s footprint in Jamshedpur, a key industrial hub known fo..