Transient and stability analysis in single-phase natural circulation

Mousavian, Seyed Khalil; Misale, Mario; D'Auria, Francesco Saverio; Salehi, Mahmoud A.

doi:10.1016/j.anucene.2004.01.005

Cited by 91 publications

(24 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The applicability of RELAP5/MOD3.2 has been well established for natural circulation systems under high tem- perature and high pressure condition [8][9][10]. The validity of RELAP5/MOD3.2 computer code at atmospheric conditions was checked for the single-phase natural circulation flow by Kamble et al [11] in a rectangular loop.…”

Section: Initial Conditions and Cases Studiedmentioning

confidence: 99%

Analysis of metastable regimes in a parallel channel single phase natural circulation system with RELAP5/MOD3.2

Gartia

Pilkhwal

Vijayan

et al. 2007

International Journal of Thermal Sciences

View full text Add to dashboard Cite

Section: Initial Conditions and Cases Studiedmentioning

confidence: 99%

Analysis of metastable regimes in a parallel channel single phase natural circulation system with RELAP5/MOD3.2

Gartia

Pilkhwal

Vijayan

et al. 2007

International Journal of Thermal Sciences

View full text Add to dashboard Cite

“…Even if in the present paper only a heat power over 2000 W and heat sink temperature of 20 °C was numerically compared with the corresponding experimental data, the procedures adopted during the considered experiments was the same employed in several experimental campaigns previously performed [11].…”

Section: Methodsmentioning

confidence: 99%

Assessment of a 2D CFD model for a single phase natural circulation loop

Borreani¹,

Chersola²,

Lomonaco³

et al. 2017

IJHT

Self Cite

View full text Add to dashboard Cite

The use of passive safety systems are more and more diffused in many technological fields. Natural circulation is probably one of the main phenomenon applied in this kind of systems: indeed, as known, by means of gravity and buoyancy forces, the fluids can circulate without any external power sources. In this paper, a preliminary analysis (also by comparisons between experimental tests and numerical simulations) of a natural circulation based loop (namely a natural circulation based facility installed at University of Genova) is presented. Starting from some experimental results, the data deriving from CFD loop simulations (both in steady and in unsteady conditions) are used for a first preliminary validation, mainly in order to have a computational tool reliable and able to computationally simulate motion inversions related phenomena. The physical inversions phenomena are very well reproduced also by the a simplified numerical 2D model of the loop, and the physical considerations related to the temperature and velocity fluctuations during the transient simulations, are in agreement with the well-known observations formulated by Welander on the basis of a simple point source analysis scheme.

show abstract

“…Predictions from the present numerical model have been compared with experimental data presented by Mousavian et al [29], which considered a circuit of two horizontal copper tubes (heat exchanging sections) and two vertical stainless steel tubes (assumed adiabatic), connected by four 90 • stainless steel bends. A similar configuration has been analysed where adiabatic condition has been implied setting H a equal to zero.…”

Section: Model Validationmentioning

confidence: 99%