Book excerpt: This is the foremost guide to hydraulically designing sprinkler systems for commercial and residential buildings. Sprinkler Hydraulics, Third Edition includes the latest developments in automatic sprinkler design, as well as going beyond the NFPA 13 Standard to explain everything needed to know to professionally design a system. Sprinkler Hydraulics, Third Edition explains flow phenomena to help the reader evaluate calculated sprinkler systems. Starting with a general discussion of the mathematics involved, the discussion proceeds to define sprinkler density, including several examples which explain how to determine discharge areas. • Includes the latest developments in automatic sprinkler design, as well as going beyond the NFPA 13 Standard to explain everything needed to know to professionally design a system; • Starting with a general discussion of the mathematics involved, the discussion proceeds to define sprinkler density, including several examples which explain how to determine discharge areas; • Explains flow phenomena to help the reader evaluate calculated sprinkler systems.