- Author
- Evans, D. D.
- Title
- Calculating Sprinkler Actuation Time in Compartments.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
- Fire Safety Journal, Vol. 9, No. 2, 147-155, 1985
- Report
- CIB W14/85/14 (USA),
- Book or Conf
- Society of Fire Protection Engineers. Computer Applications in Fire Protection: Analysis, Modeling and Design. March 19-21, 1984, Leesburg, VA, 29 p., 1984
- Keywords
- compartments | sprinkler systems
- Abstract
- A generalized method is presented for determining the response time for thermally actuated sprinklers installed near the ceiling of both large and small compartments. A substitute source for the actual fire is calculated to account for the effects of a warm gas layer in the upper portion of the enclosure on ceiling-layer flow temperatures. Illustrative examples are given for the change in response time for sprinklers with RTI values of 25, 100, and 400 m(1/2s1/2), to a given fire in a series of compartments ranging in floor area from 23.8 m(2) [256 ft(2)] to 24,300 m(2) [262,000 ft(2)]. For comparative purposes sprinkler response is also calculated for the limiting case of an unconfined ceiling.