Davaj S. Rise safety of venting pipelines NPP

Increasing of safety in venting pipelines of second contour NPP are studied in the work. The influence of condensate cooling in venting pipelines of second contour on efficiency of NPP are investigated and the optimum cooling condensate systems are developed. The regulation system based on submission of cold water in venting pipelines NPP for decreasing its vibration are offered. The technique on numerical investigation unstationary thermo hydraulic processes in surface type heat exchanger, in regulation system of condensate level and in submission of cold water to venting pipelines are carried out. The results which specify conditions of occurrence and features of auto fluctuations development in pipelines on the basis of the offered technique are elaborated.