Seminarium Zakładu Energetyki Jądrowej i Analiz Środowiska

Driven by the desire to expand the industrial applications of high temperature gas-cooled reactors (HTGR) the Japan Atomic Energy Agency (JAEA) is intensively conducting research and development activities on the new commercial design of Gas Turbine High Temperature Reactor for Cogeneration (GTHTR300C). In order to confirm operation and safety performance of such a system for electricity and hydrogen cogeneration, the pre-licensing design of the test plant has been recently proposed that is based on the existing JAEA’s technology – High Temperature Engineering Test Reactor (HTTR).

There are many ways to quantify initiating event probability and most of them are described in the document “Defining initiating events for purposes of probabilistic safety assessment”, developed by the International Atomic Energy Agency. This guide describes seven methods: engineering evaluation or technical study of a plant; reference to previous probabilistic safety assessment; EPRI list of initiating events; logical classification; plant energy balance fault tree; analysis of operation experience for an actual plant; failure mode and effect analysis.

Right energy management in combined heat and power plants implies both reduced emissions and saved fuels. The Warsaw University of Technology team took part in hackathon in December 2019. Contestants’ goal was to create the optimization model for covering the heat demand based on real data. Firstly members of the winning team will present the idea of combined heat and power production and elaborate on the role of a heat accumulator in the process. Then, they will superficially share their experience with building the winning prototype application.

The aim of the presentation is to discuss some fundamentals concerning the question of efficiency and scalability of numerical algorithms on computing cluster. The issues related to the development of such algorithms will be illustrated for the problem of solving system of linear equations with tridiagonal matrix derived from the approximation of transport linear differential equation. Application of the algorithm to finding the solutions of other partial differential equations will be also presented.

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