Naslov
Hot Leg Streaming Calculation for Two-Loop PWR Plant

Autori
Grgić, Davor ; Fancev, Tomislav ; Benčik, Vesna ; Šadek, Siniša

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 10th International Conference on Nuclear Option in Countries with Small and Medium Electricity Grids / Čavlina, Nikola ; Grgić, Davor ; Pevec, Dubravko - Zagreb : Hrvatsko nuklearno društvo, 2014, 151-1

ISBN
978-953-55224-6-1

Skup
10th International Conference on Nuclear Option in Countries with Small and Medium Electricity Grids

Mjesto i datum
Zadar, Hrvatska, 01.06.2014. - 04.06.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
hot leg streaming; PARCS; FLUENT; temperature profiles

Sažetak
Thermal stratification in hot leg pipe (often called hot leg streaming (HLS)) of PWR plant is caused by different heating of core fluid streams in fuel assemblies having different power production. Fluid streams having different temperature at core exit, after some mixing, enter hot leg pipe. Any perpendicular plane downstream hot leg pipe will have some kind of 2D temperature distribution and temperature measured by immersed Resistance Temperature Detectors (RTD) will depend on circumferential position and insertion depth of RTD detector. In order to get representative average temperature of the water typically 3 different circumferential measurement positions were used. The model for HLS calculation is developed based on core exit temperatures calculated by PARCS code and ANSYS-FLUENT CFD (Computational Fluid Dynamics) model of outlet plenum and hot legs. The scooping calculation was performed to determine HLS temperature profiles for NPP Krsko.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA