Green Guard
Client - Foster and Partners

Understanding the Context
Delhi's rapid growth has outpaced its sewage treatment infrastructure, with many areas still lacking sewer connections. Treatment plants operate at just 65% capacity, while seasonal dry spells turn open drains into polluted sewers, exacerbating the urban heat island (UHI) effect. Inspired by traditional Rajasthani cooling techniques that use water and airflow, we aim to integrate passive cooling systems around these drains. Leveraging the natural air circulation of open and closed drainage systems, we seek to create sustainable solutions that harness greywater and airflow to cool surrounding areas effectively.
Concept
The passive cooling slabs, called GreenGuard, placed over the drains transform these overlooked spaces and combat the Urban Heat Island Effect. The slab design, inspired by filler slabs, features a tri-layered structure: a concrete mix with GGBFS for enhanced material properties, indigenous clay pots using traditional JADIBUTI techniques for ventilation, and iron beams for structural support. This innovative approach blends tradition, sustainability, and modern engineering to create cooler urban environments.



Material & Working


Shape - Inverted Funnel
The inverted funnel shape, inspired by the majestic domes of Mughal architecture, is meticulously designed for optimal air management. Its dome structure facilitates efficient air trapping, while the pipe-like configuration aids in cooling before releasing. This innovative blend of form and function enhances ventilation, echoing the timeless beauty of historical design.
