THE REVIEW OF STEAM EXPLOITATION IN SECONDARY SYSTEMS OF NUCLEAR POWER PLANT

V diplomskem delu je predstavljen razvoj jedrskih elektrarn. Navedeni so tipi reaktorjev, posebej pa je predstavljena Nuklearna elektrarna Krško. Opisani so sistemi za odjem pare v sekundarnem krogu jedrskih elektrarn v svetu. Narejen je preračun entalpijskih tokov in moči nizkotlačne turbine v sekundarnem krogu NEK. Predlagano je mesto za postavitev toplotnega prenosnika za daljinsko ogrevanje Krškega in Brežic. Glede na to, da bi se zaradi tega proizvedlo manj električne energije, je podan še izračun cen daljinske toplote, ki bi zadostovale za pokritje izgub zmanjšane proizvodnje električne energije.This thesis presents nuclear power plants development. Types of reactors are also presented, in particular Nuclear power plant Krško. It describes systems of steam exploitation in secondary systems of nuclear power plants in the world. Calculation of enthalpy flow and power in low pressure turbine in secondary system of NPP Krško is made in thesis. The place in secondary system of NPP Krško is suggested for the installation of the heat exchanger for Krško and Brežice areas district heating. Considering the fact that there will be produced less electricity, the calculation for the price of district heat is given, which would be sufficient to cover the losses of reduced power generation