RT Journal Article ID 09e3cd4e0d84992f A1 Jain, Manish A1 Kandar, T. K. A1 Vhora, S. F. A1 Iyer, Kannan A1 Prabhu, S. V. T1 EXPERIMENTAL INVESTIGATION OF THE 700 MWe CONTAINMENT SPRAY SYSTEM SPRAY NOZZLES/SYSTEM JF Atomization and Sprays JO AAS YR 2017 FD 2017-09-11 VO 27 IS 8 SP 665 OP 690 K1 pressure swirl K1 spray nozzles K1 Sauter mean diameter K1 linear diameter K1 Nukiyama-Tanasawa distribution K1 log-normal peak shifted distribution AB The aim of the present work is to study a full cone pressure swirl nozzle (pressure swirl nozzles) and its configuration on a spray header for the 700MWe Indian Pressurized HeavyWater Reactor (IPHWR) Containment Spray System (CSS) (a FOAK system). The Reynolds number (Re) effect on coefficient of discharge (Cd), spray cone angle, SMD (D32), droplet size distribution, and droplet velocity is investigated for full cone pressure swirl nozzles. Studies are performed to optimize the nozzle configuration on the spray header and the distribution of mass flux. The mass flux density studies are carried out in patternater facilities at IIT Bombay and the Kakrapar Atomic Power Project (KAPP). Water at room temperature is used for the spray in experimental investigation. The nozzle characterization experimental studies are carried out for Re ranging from 1.43 × 105 to 2.49 × 105. A particle droplet image analyzer (PDIA) is used for the measurement of droplet velocity, SMD (D32), and drop size distributions. A simple CCD camera along with a diode laser and patternater software is used for the measurement of the spray cone angle. The catch and time technique is used to measure coefficient of discharge. The droplet flux distribution at different Z/D0 and R/D0 is also performed. Nukiyama-Tanasawa distribution and log-normal peak shifted distribution show a reasonably good confirmation with the present experimental studies. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,538ec7d07bb3b6d6,09e3cd4e0d84992f.html