The normally closed valves of the sprinkler heads open when sufficiently heated or triggered by a thermal source such as a fire. The sprinkler heads typically include normally closed temperature-responsive valves. The fluid flow lines are coupled to a primary water supply valve which can include, for example, an air-to-water ratio valve, deluge valve or preaction valve as is known in the art. The sprinkler grid is connected via fluid flow lines containing air or other gas. A dry sprinkler system includes a sprinkler grid having a plurality of sprinkler heads. BACKGROUND OF THE INVENTIONĭry sprinkler systems are well-known in the art. The present invention is further directed to the method of designing and installing such systems. More specifically, the present invention provides a dry sprinkler system, suitable for the protection of storage occupancies, which uses a surround and drown effect to address a fire event. This invention relates generally to dry sprinkler fire protection systems and the method of their design and installation. It should be understood that one of ordinary skill can correlate the citations from NFPA-13 to corresponding tables in the 2007 edition of NFPA-13 Standard for the Installation of Sprinkler Systems. A) (vii) The National Fire Protection Association (NFPA), NFPA-13 Standard for the Installation of Sprinkler Systems(2002 ed.) (hereinafter “NFPA-13”) and (viii) NFPA, NFPA-13 Standard for the Installation of Sprinkler Systems (2007 ed.). 2, 2006,” (2006) (vi) Tyco Fire & Building Prods., Technical Data Sheet: TFP370, “Quell™ Systems: Preaction and Dry Alternatives For Eliminating In-Rack Sprinklers” (August 2006 Rev. Project 06NK05814, EX4991 for Tyco Fire & Building Products Jun. (hereinafter “UL”), “Fire Performance Evaluation of Dry-pipe Sprinkler Systems for Protection of Class II, III and Group A Plastic Commodities Using K-16.8 Sprinkler: Technical Report Underwriters Laboratories Inc. 2005/0216242, and entitled “System and Method For Evaluation of Fluid Flow in a Piping System ” (iv) Tyco Fire & Building Prods., “SPRINKFDT™ SPRINKCALC™: SprinkCAD Studio User Manual” (September 2006) (v) Underwriters Laboratories, Inc. Provisional Patent Application 60/722,401 filed on Oct. 3, 2006 entitled, “System and Method For Evaluation of Fluid Flow in a Piping System,” which claims priority to (ii) U.S. Further incorporated herein in their entirety by reference are the following: (i) PCT International Patent Application No. 21, 2006, each of the listed applications above is incorporated by reference in their entirety. 23, 2006, which claims the benefit of priority to the following: (i) U.S. National Stage Application Under 35 U.S.C. 7,798,239, which is a Continuation of U.S. This application is a Continuation of U.S. PRIORITY DATA AND INCORPORATION BY REFERENCE The preferred sprinkler system is adapted for fire protection of storage commodities and provides a ceiling only system that eliminates or otherwise minimizes the economic disadvantages and design penalties of current dry sprinkler system design. The defined delay period is of a defined period having a maximum and a minimum. The sprinklers of the operational area are preferably configured so as to provide sufficient fluid volume and cooling to address the fire-event with a surround and drown configuration. The system and method preferably provide for the surround and effect by activating one or more initial sprinklers, delaying fluid flow to the initial activated sprinklers for a defined delay period to permit the thermal activation of a subsequent one or more sprinklers so as to form the preferred sprinkler operational area. A ceiling-only dry sprinkler system configured to address a storage occupancy fire event with a sprinkler operational area sufficient in size to surround and drown the fire.
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