ground level. This naturally keeps the temperature in moderate levels. Then they have introduced fresh air through earth air tunnels which cools the indoor sports arena. This way they are cooling these areas with 100% fresh air through earth air without any use of chilled water. Thus, absolutely no load on the HVAC system.
7.8.13.
SWIMMING POOL
Like the indoor sports arena, the swimming pools are also constructed in the lower ground floor about 3m below the ground. Since these pools are heated for all weather use, this placement, to a good extent, naturally takes care of the temperature of the water. •
Pool heating: For the winter heating instead of going in for boilers they have gone for energy efficient heat pumps. Further during non-operational hours pool is covered
•
Pool ventilation: out of the air with which indoor sports arena is cooled, is directed to the swimming pool for ventilation and maintaining the humidity levels. Using this technique has saved them from putting de-humidifiers and separate ventilation system.
This has resulted in saving 310 KW of load
Figure 7.26. Swimming pool Source: https://www.pathways.in/aravali/aravali_green_pathways
7.8.14.
ROOFS
Terraces are open to the sun heat and r5adiate a lot of heat inside. This increases the air conditioning load on the top floor of the building. Here again we go the natural way. Thay lay the brick bats over the RCC roof for insulation. This is them plastered and then on top, broken china mosaic. This reflects the heat from the sun and being of ligh6t colours do not absorb any heat either. And whatever little is left the brick bats take care of not passing through it. 156
