Physical and Statistical Models for Steam Generator Clogging by Sylvain Girard

By Sylvain Girard

Clogging of steam turbines in nuclear energy crops is a hugely delicate factor by way of functionality and security and this publication proposes a very novel method for diagnosing this phenomenon. It demonstrates real-life commercial purposes of this method of French steam turbines and applies the method of operational info collected from French nuclear strength crops. The ebook offers a close evaluation of in situ analysis options and assesses current methodologies for clogging analysis, when reading their boundaries. It additionally addresses numerical modelling of the dynamic behaviour of steam turbines and gives a radical research of statistical equipment for sensitivity research and size relief. Steam turbines are warmth exchangers present in nuclear strength crops and over the years they turn into more and more clogged via iron oxides. This clogging then hampers the stream inside of steam turbines and compromises their mechanical integrity, which hinders functionality and safeguard. This booklet is meant for nuclear defense experts, nuclear functionality engineers and researchers and postgraduate scholars engaged on warmth exchanger modeling and computational engineering.

Show description

By Sylvain Girard

Clogging of steam turbines in nuclear energy crops is a hugely delicate factor by way of functionality and security and this publication proposes a very novel method for diagnosing this phenomenon. It demonstrates real-life commercial purposes of this method of French steam turbines and applies the method of operational info collected from French nuclear strength crops. The ebook offers a close evaluation of in situ analysis options and assesses current methodologies for clogging analysis, when reading their boundaries. It additionally addresses numerical modelling of the dynamic behaviour of steam turbines and gives a radical research of statistical equipment for sensitivity research and size relief. Steam turbines are warmth exchangers present in nuclear strength crops and over the years they turn into more and more clogged via iron oxides. This clogging then hampers the stream inside of steam turbines and compromises their mechanical integrity, which hinders functionality and safeguard. This booklet is meant for nuclear defense experts, nuclear functionality engineers and researchers and postgraduate scholars engaged on warmth exchanger modeling and computational engineering.

Show description

Read Online or Download Physical and Statistical Models for Steam Generator Clogging Diagnosis PDF

Similar nuclear books

Quantum Chromodynamics: Perturbative and Nonperturbative Aspects

Aimed toward graduate scholars and researchers in theoretical physics, this booklet offers the trendy concept of sturdy interplay: quantum chromodynamics (QCD). The booklet exposes numerous perturbative and nonperturbative methods to the speculation, together with chiral potent idea, the issues of anomalies, vacuum tunnel transitions, and the matter of divergence of the perturbative sequence.

Nuclear Weapons in the Changing World: Perspectives from Europe, Asia, and North America

Lawrence Freedman one of many significant bonuses of the cave in of communism in Europe is that it may possibly by no means back be essential to input right into a sterile debate approximately if it is larger to be "red" or "dead. " This seemed because the final query within the nice nuclear debate of the early Eighties. while positioned so starkly the reply seemed visible­ greater to dwell and fight in a totalitarian method than to wreck totalitarian and democratic structures alike.

Scattering Theory: The Quantum Theory of Nonrelativistic Collisions (Dover Books on Engineering)

Scattering conception is a notoriously tough region in quantum mechanics. After having a look a number of classics, I borrowed a duplicate of this publication, then out of print, and located instantly it was once on the correct point. The exposition is often to the purpose, by no means overloaded with aspect concerns or minor information, but very transparent and special, a excitement to learn.

Extra info for Physical and Statistical Models for Steam Generator Clogging Diagnosis

Sample text

3a). Dynasim AB El Hefni B, Bouskela D, Lebreton G (2011) Dynamic modelling of a combined cycle power plant with ThermoSysPro. 1. Tech. Rep. 1016564, EPRI Ghiaasiaan SM (2008) Two-phase flow, boiling and condensation in conventional and miniature systems. Cambridge University Press. 1, partie 1: modélisation. Tech. Rep. H-I84/03/020/A, EDF Hewitt GF (2011) Empirical and phenomenological models for multiphase flows—I. Vertical flows. In: zur (2011) Hibiki T, Ishii M (2003) One-dimensional drift-flux model and constitutive equations for relative motion between phases in various two-phase flow regimes.

R. subspace of lowest dimension whose existence and uniqueness was proved by Cook (1998, Chap. 6) under very general hypotheses that will be assumed to be honoured in the following. 1 Inverse Regression Curve Classical regression techniques often become impractical when the input dimension exceeds ten or so. The strategy of SIR to circumvent to issue is to consider instead the inverse regression curve, E (X|Y ), which depends on a unique variable. When y varies, the inverse regression, E (X|Y = y), draws a curve in R p .

The pressure forces per unit volume; iv. the viscous forces per unit volume. The last term is the gravity force. 2 Practical Set of Balance Equations for the Single-phase Flow The equations stated in the previous section were reformulated before being transcribed into computer code for numerical solving. ˙ Using the mass flow rate per unit area of the passing section, m˙ = M A = ρv, the mass balance equation becomes ∂ m˙ ∂ρ + = 0. 6) Multiplying Eq. 4) by v gives the evolution equation for kinetic energy: ∂ ∂t ρv 2 2 =− ∂ ∂z ρv 2 ∂ pv ∂v ∂τ v ∂v v − − (− ) p − − (− ) τ + ρgz v.

Download PDF sample

Rated 4.23 of 5 – based on 29 votes