Inderscience Publishers

The combined effect of changes in the condenser cooling seawater temperature, fouling and salinity on the thermal performance of a pressurised water reactor nuclear power plant

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This study presents the effect of temperature, fouling factor and salinity of the condenser cooling seawater and adverse effect on the thermal performance of a nuclear power plant. These are the most important factors affecting the condenser performance. The study is carried out on a pressurised water reactor nuclear power plant. The results showed that a loss in the plant output power and thermal efficiency of up to 8.242% and 2.77%, respectively, can result from an increase in the condenser cooling seawater temperature by about 15–30°C, fouling factor of seawater and treated boiler feed water by about 0.00015–0.00035 and 0.00005–0.00015 m² K/W, respectively, and salinity by about 0–100 g/kg. This paper investigates three real practical factors that have been proved to have significant adverse effects on the thermal efficiency of nuclear power plants.

Keywords: PWR secondary cycle, pressurised water reactors, condenser performance, fouling factor, salinity, nuclear energy, nuclear power, temperature changes, condenser cooling, seawater cooling, temperature, thermal efficiency, nuclear power plants, NPP

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