Review on the design and scientific aspects for drencher systems in different countries

For spaces without compartmentation, or where it is not possible to provide compartmentation, drencher system might be installed to prevent heat transfer from the fire zone to the adjacent areas. Spaces with large openings such as refuge floor also have this requirement. But questions had been raised on whether the drencher system is effective in providing fire safety, especially when used externally under wind environment. In this paper, design guides on this system in different countries including UK, USA and Australia are reviewed with key features reported to give a better understanding on this system. Scientific aspects are also introduced. Application to the local airport terminal buildings are demonstrated.