IIT Gandhinagar, Gujarat, India
DbHMS is working on three buildings in an upcoming campus in
IIT Gandhinagar. DbHMS scope involves designing Passive Down draft Evaporative
Cooling and Night Purge ventilation system for the blocks. All blocks will be
simulated in the simulation software and CFD studies too precisely and
accurately size and design the passive cooling system.
PDEC (Passive Downdraft Evaporative Cooling): This technique
works by adding humidity in air and thus reducing temperature of air. This
happens by doing misting on top of tower. Heavy air drops down pushing hot air
out from an exhaust shaft. All of this works passively.
Night Purge: This technique utilizes temperature difference
between day and night time. Locations where there is substantial diurnal
temperature variation this system is very effective. Building can have a high
thermal mass which can absorb heat throughout the day. This mass can be exposed
to lower temperatures at night time to achieve free cooling. Same technique was
widely used in old Indian buildings.,/p>
dbHMS is also designing a BMS System for the project. BMS
will help control and monitor performance of the system.
