Feasibility Research in the Technology for Industrial Steam Supply by PWR Nuclear Power Plant

[Introduction] The paper aims to research the technology feasibility of steam conversion system for industrial steam supply by pressurized water reactor (PWR) nuclear power. [Method] we took a 1 000 MW (PWR) nuclear power plant as an example, supplying industrial steam 300 t/h, 1.8 MPa and 250 ℃. This paper demonstrated the technical feasibility of a steam conversion system which could meet the industrial steam needs by using steam in the secondary loop of PWR nuclear power plant to heat industrial water, based on the first law and the second law of thermodynamics. This paper designed the process flow of the system, calculated the thermodynamic parameters of the key heat exchangers in the system. [Result] The reasonable value of the heat source drainage temperature was analyzed. Our data suggest heat source drainage temperature is 65 ℃ for the industrial steam supply of PWR nuclear power plants. The temperature of heat source would be lower than the industrial water if the drainage temperature was lower than 60 ℃ ，which would violate the second law of thermodynamics. [Conclusion] The research results can provide technical reference for industrial steam supply of PWR nuclear power plant.