The numerical calculation was carried out using OmniCADDⓇ HCS Hydraulic Calculation Software to certify if flow velocities in pipes reduced in diameter were satisfied with fire codes for a dry system of underground parking area in apartment complex. The design pressure and flow rate for the dry system were 4.3 bar and 1633.8 lpm. The maximum discharge pressure and flow rate of sprinklers were 2.2 bar and 118.2 lpm. The maximum flow velocities in main pipe, branch line and other pipe of the dry system were 1.5 m/s, 5.0 m/s and 3.5 m/s. The design propriety could be clearly certified by satisfying with fire codes related to flow velocities for the pipe network of the dry system.

Abstract
 1. 서 론
 2. 건식 스프링클러설비의 수리계산 설계
  2.1 수리계산 설계
  2.2 설계 적정성 해석 기준
  2.3 설계 입력 자료
 3. 결과 및 고찰
  3.1 압력-유량 곡선
  3.2 배관 유량 및 유속
  3.3 헤드 방수압과 방수량
 4. 결 론
 참 고 문 헌

• 전흥균(대구보건대학 소방안전관리과) | H. K. JEON
• 추홍록(대구보건대학 소방안전관리과) | H. L. CHOO
• 우상철(대구보건대학 소방안전관리과) | S. C. WOO