Selected Topics in Probabilistic Safety Assessment by Dan Serbanescu & Anatoli Paul Ulmeanu

Author:Dan Serbanescu & Anatoli Paul Ulmeanu
Language: eng
Format: epub
ISBN: 9783030405489
Publisher: Springer International Publishing

(2.21)

where are the densities probability of risk metrics for CDF, LERF and RISK, respectively.

Fig. 2.47Representation of the convolution integral for total distribution of the risk Metrics for I_IPSA_EPSA levels 1–3 integrated

Example 2 solution . In the previous example, a generic situation of I_IPSA_EPSA risk metrics SUA case was presented. However, PSA is performed not only for the evaluation of the risk metrics, but also for various applications. One of those applications consists of the definition of radii of the protection zones around NPP.

In such case, the uncertainties follow the path of calculations from formulas (2.22) to (2.24).

For the sake of underlying the computational aspects of the radii in a deterministic and probabilistic approaches, coded by indexes ‘d’ and ‘p’, respectively, a set of formulas can be derived as presented below, for the variables introduced in Table 2.13:

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