Experimental and numerical study of a cryogenic valve using liquid nitrogen and water

Pinho, Jorge; Peveroni, Laura; Vetrano, Maria Rosaria; Buchlin, Jean‐Marie; Steelant, Johan; Strengnart, M.

doi:10.1016/j.ast.2019.105331

Cited by 17 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experiments were performed in the Cryoline facility at the von Karman Institute (VKI) for fluid dynamics, which is illustrated in Figure 2. A precedent work by the same research group [4] has been performed in the same experimental facility to test a cryogenic valve used in launch vehicle liquid propulsion systems. Liquid nitrogen (LN2) is stored outside the cryogenic laboratory in a 1200 L storage tank.…”

Section: Experimental Facility and Proceduresmentioning

confidence: 99%

Experimental and Numerical Study of a Cryogenic Ball Valve Using Liquid Nitrogen

Scelzo¹,

Faruoli²,

Lejeune³

et al. 2023

World Congress on Momentum, Heat and Mass Transfer

View full text Add to dashboard Cite

This paper addresses the experimental and numerical study of a cryogenic ball valve using liquid nitrogen as working fluid. Experimental tests were performed in the Cryoline facility at the von Karman Institute for Fluid Dynamics (Belgium) in collaboration with Centre Technique des Industries Mécaniques (France). Mass flow rate, pressure, and temperature measurements were performed during the tests, and synchronized with high-speed flow visualization. Subcooled liquid nitrogen was ensured upstream the valve. Three different valve apertures, with different back pressure values, enabled both fully liquid and two-phase flow conditions downstream the valve. Besides the flow regime and the hydraulic performance, the valve stem temperature was monitored during the tests and the subsequent accelerated transient warming of the cryogenic line. In parallel, isothermal CFD simulations were performed in OpenFoam using a standard cavitation model. Results in single and two-phase flow conditions are compared to the experimental findings.

show abstract

Section: Experimental Facility and Proceduresmentioning

confidence: 99%

Experimental and Numerical Study of a Cryogenic Ball Valve Using Liquid Nitrogen

Scelzo¹,

Faruoli²,

Lejeune³

et al. 2023

World Congress on Momentum, Heat and Mass Transfer

View full text Add to dashboard Cite

show abstract

“…Several authors evidenced with experiments this thermodynamic effect in the framework of engineering applications such as propulsion systems [8,9] , or electronics cooling [10,11] , and many of them used Liquid Nitrogen (LN 2 ). Tani and Nagashima [12] studied cavitation formed at the throat of a nozzle using both water and LN 2 .…”

Section: Introductionmentioning

confidence: 99%

On the influence of thermal phenomena during cavitation through an orifice

Esposito

Peveroni

Gouriet

et al. 2021

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

Thermal properties of cryogenic fluids can profoundly change the nature of cavitation since the fluid pressure drop is not, anymore, the only driving parameter of this phenomenon.In this research, we have conducted experiments inducing cavitation via a cylindrical orifice using Liquid Nitrogen as working fluid and exploring cavitation regimes going from bubbly cavitation to full flashing. Among others, we performed unsteady pressure measurements to derive the speed of sound during cavitation and high-speed imaging to understand the evolution of the two-phase flow along the pipe.In our analysis we use five dimensionless numbers to describe the flow conditions upstream and downstream of the orifice, and the type of transition taking place across the orifice.In this paper, we show that the fluid initial subcooling level T sub upstream of the orifice and the superheat level Rp of the flow downstream of the orifice are two parameters essential to take into account the metastability of the fluid. Therefore, we propose a new semi-empirical model for predicting the effect of the fluid thermal properties on cavitation. Specifically, we define a parameter T which, multiplied by the saturation pressure at the inlet temperature, allows us to estimate the pressure reached at the orifice to cavitate.

show abstract

“…A valve is an indispensable component of a fluid control system. [1][2][3] The seal performance of a valve is achieved through the close fitting of the spool and seat.…”

Section: Introductionmentioning

confidence: 99%

Method of predicting valve seal leakage considering deflection of the spool

Guo

Xiang

Chen

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The small angular deflection of the spool under the action of non-equilibrium force is a main reason for valve seal failure. In the present study, a prediction model of the valve seal leakage was established considering the sectional shape and channel height of the leakage channel. The effect of spool deflection on the leakage rate was analyzed quantitatively from the results of three-dimensional finite element mechanical analysis. The microscale leakage channel of a contact deformation surface was then generated through the reconstruction of the rough surface with nanoscale precision, deterministic rough-peak contact analysis, and lattice leakage theory. The results showed that the spool deflection was the key factor affecting the leakage rate. The leakage rate was measured on a self-built experimental platform, and the experimental results verified the accuracy of the theoretical calculations.

show abstract

Experimental and numerical study of a cryogenic valve using liquid nitrogen and water

Cited by 17 publications

References 11 publications

Experimental and Numerical Study of a Cryogenic Ball Valve Using Liquid Nitrogen

Experimental and Numerical Study of a Cryogenic Ball Valve Using Liquid Nitrogen

On the influence of thermal phenomena during cavitation through an orifice

Method of predicting valve seal leakage considering deflection of the spool

Contact Info

Product

Resources

About