Horizontal type steam generator for VVER -1000 (Unit 5 Novovoronezh NPP): a) – longitudinal section, b) – cross-section, 1 – vessel; 2 – steam outlet; 3 – chevrons of the separator unit; 4 – heat exchange tube bundle; 5 – supply of feed water; 6 – outlet header; 7 – steam header; 8 – supply of auxiliary feed water; 9 – tube bundle support; 10 – inlet header