Nuclear power

Nuclear power plants need accurate level and flow control to ensure safety and efficiency.

As the world continues to leverage nuclear power as a clean energy source, the demand for improved performance from existing and next-generation reactors increases. Nuclear power plant instrumentation, including level measurement and control devices, must meet the challenge to enhance the efficiency and safety of these facilities.

Applications

Containment & drainage sumps

A plant has many low-lying drainage reservoirs known as sumps. Small sumps include pump enclosures and tank rupture basins that contain leakage. The reactor’s large, containment sump is an essential reservoir of the ECCS whose function is to...
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Cooling tower basins

Open-system cooling towers reject waste heat from the steam cycle by exposing the cooling water directly to the atmosphere. The majority of heat removed is due to evaporation and the remaining cooled water drops into a collection basin. Level...
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Cooling tower intake & basin levels

The hyperbolic cooling tower releasing clouds of water vapor is the iconic image of nuclear power. Warm water from the condenser is pumped to the natural draft cooling tower, distributed to remove waste heat to the ambient atmosphere through...
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Emergency coolant tanks

The Emergency Core Cooling System (ECCS) supplies cooling water to the reactor during an interruption of the reactor’s normal cooling system. Upwards of 250,000 gallons of emergency make-up water is drawn from Refueling Water Storage Tanks (RWST)...
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Liquid waste storage

Waste liquids from sumps, radioactive leakage collectors, the Reactor Cooling System (RCS), and allied systems are collected, stored and processed. Inactive wastes are discharged or reused; active wastes are collected for processing. Radioactive...
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Scram discharge volume tanks

A SCRAM is a rapid shutdown of a nuclear reactor whereby control rods are inserted between the fuel rods in the reactor core to discontinue the fission reaction. The SCRAM is actuated manually by an operator or automatically when parameters are...
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Spent fuel pools

One-third of the total fuel load of a reactor is removed from the core every 12 to 18 months and replaced with fresh fuel. Spent fuel rods generate intense heat and high radiation and are stored underwater in pools with depths of 20 to 40 feet....
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Turbine steam generators

Primary coolant circulating in a PWR is heated under extremely high pressures to prevent boiling. The heated coolant enters two or more boilers called Steam Generators (SG) and boils the secondary loop coolant in a heat transfer process...
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