CFD Smoke Analysis : Reem Mall- Abu Dhabi
The aim of this project is to examine and improve the effectiveness of the designed ducted smoke ventilation system for the “REEM MALL @ UAE” using Computational Fluid Dynamics (CFD) tools. The specific aim is to find the optimal locations, number & configuration of the ducts/grills required for the smoke ventilation of the atrium, such that under fire scenario it meets the requirements set by health/safety regulations criteria and smoke extraction criterion and in the event of fire provide relief from heat and smoke from the fire and assist fire fighters in locating and attacking the fire safely.
The basis for the construction of the smoke exhaust system is to use the exhaust ducts placed at level-04 of the atrium as the main extraction point. Make up air is natural and airs from other locations and from the entrance are considered as make up air points. The smoke ventilation system is expected to help maintain adequate visibility for the occupants by effectively removing the smoke & also preventing stagnation of smoke. The smoke ventilation system should also satisfy the guidelines provided by UAE Fire & Life Safety Code of Practice.
- The 1200 second duration of the simulation. Since the tenability conditions (i.e. visibility must be greater than 10 and temperature must be less than 60 Deg C) were maintained below 1.83m throughout
- As per UAE Fire & Life Safety Code of Practice the tenability conditions have to be maintained for duration of 1.5 times the calculated egress time or 20minutes, whichever is more [1]. In our case, The maximum egress time calculated = 459sec 1.5 x egress time = 918sec Since the ASET value is 1200sec it is greater than the 1.5 times the egress time and it is equal to 1200sec (20min). Hence the simulation complies with the UAE Fire & Life Safety code of Practice.
- As per NFPA 101 a factor of safety of 2 or greater must be maintained during a fire scenario. (i.e. ASET must be greater than or equal to 2 times the RSET values) [3]. Since the ASET value for all the 4 scenarios is 1200sec it more than 2 times the RSET value. Hence our simulation complies with NFPA 101 standards.
Experience the Future! Contact us today to discover how our sustainable and innovative solutions can transform your project’s environmental performance. Let’s build a greener, more efficient future together!
