Delhi Metro uses broken tiles to deflect heat and conserve energy
In a unique environment friendly initiative, the Delhi Metro Rail Corporation (DMRC) has decided to use broken tiles to reduce the heat inside Metro stations.
Unable to dispose of tiles that are broken at Metro stations and removed every day, engineers working with the DMRC suggested the pieces be placed on the rooftop of Metro stations to deflect sunlight and help reduce temperature. Authorities said, this will reduce temperature by 2-3 degree Celsius.
The move will ultimately cut down on the use of air conditioners.
For trial run, DMRC has placed the broken tiles on the roof of multi-storey buildings at the residential Metro enclave in Saket.
“We have tried and tested it at the residential complex. The tiles are of no use and disposing them as waste will affect the environment. This way, we will not only use the waste but also reduce energy consumption by reducing the use of air conditioning,” said a DMRC official.
DMRC’s environmental unit said that the tiles deflect the sunlight and help in reducing the temperature. “In large areas, we can have solar panels but at some locations, where space is not big enough to install solar panels, we can have broken tiles,” the official added.
In the recently released environment policy, Sharat Sharma, director (operations) said that DMRC endeavours to maximise the use of natural resources to create positive environmental impact.
The annual energy consumption of DMRC now is close to six hundred million units of which 65% is for traction and 35% for other services and passenger facilities such as air conditioning, lighting, lifts and escalators.
“A number of measures have been undertaken during planning and design stage to minimise energy consumption and mitigate negative impact on environment. But as the operations are expanding, we need to look at new ways to reduce energy consumption. Use of tiles will ultimately lead to reduced energy consumption,” the DMRC official said.
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