Describe the features of the reactor core of a nuclear power plant?
The design of the reactor core should be such that the
feedback
characteristics of the core rapidly compensate for an increase in
reactivity.The reactor power should be controlled by a combination
of the inherent neutronic characteristics of the reactor core, its
thermal-hydraulic characteristics and the capability of the control
and shutdown systems to actuate for all operational states and in
design basis accident conditions. When rapid acting control
or
shutdown systems are necessary, their capabilities (e.g. speed and
reliability) should be fully justified.
A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develop net cycle power of 3 MW. Steam exits the reactor core at 100 bar, 52O degree C and expands through the turbine to the condenser pressure of 1 bar. Saturated liquid exits the condenser and is pumped to the reactor pressure of l00 bar. Isentropic efficiencies of the turbine and pump are 81% and 78%, respectively. Cooling water enters the condenser at 15 degree...
The energy released by each fission within the core of a nuclear reactor is 2.00 × 102 MeV. The number of fissions occurring each second is 2.70 × 1018. Determine the power (in watts) that the reactor generates.
Inside a nuclear power plant, energy is liberated as nuclear reactions proceed inside the core. As this happens, the mass of the nuclei Decreases. Stays the same. Increases.
9.36 In a nuclear power plant the reactor transfers the heat to a flow of liquid sodium, which in a heat exchanger transfers the heat to boiling water. Saturated vapor steam at 5 MPa exits this heat exchanger and is then superheated to 600°C in an external gas-fired superheater. The steam enters the turbine, which has an extraction at 0.4 MPa to an open FWH, and the condenser pressure is 10 kPa. Determine the heat transfer in the reactor and...
A nuclear power plant has a reactor that produces heat at the rate of 870 MW. This heat is used to produce 240 MW of mechanical power to drive an electrical generator. (a) At what rate is heat discarded to the environment by this power plant? MW (b) What is the thermal efficiency of the plant? A research group plans to construct an engine that extracts energy from the ocean, using the fact that the water temperature near the surface...
1. A nuclear power plant has double redundancy on the feedwater pumps used to remove heat from the reactor core. A safely operating plant requires only one of the three pumps to be functional. Define the events A, B, and C as follows: A: Purup I works properly B: Pump 2 works properly C: Pump 3 works properly Describe in words the following events (a) The intersection of A, B, and C (b) The union of A, B, and C...
A power plant operates on the Rankine cycle and uses a nuclear reactor to generate the steam that enters the turbine. The condenser receives cooling water from a chiller and discharges the used water to a nearby lake. Kinetic and potential effects are negligible. Stray heat transfer from the turbine, pump, and condenser can be neglected. Data are provided in the table for the system operating at steady state.
A nuclear power plant produces an average of 3.2x10^3 MW of power during a year of operation. Find the corresponding change in mass of reactor fuel, assuming all of the energy released by the fuel can be converted directly to electrical energy. (In a practical reactor, only a relatively small fraction of the energy can be converted to electricity.)
A nuclear power reactor generates 4.0 x 109 W of power. In one year (365.25 days), what is the change in the mass of the nuclear fuel due to the energy being taken from the reactor?
5. A nuclear power plant produces an average of 2.10 x 103 MW of power during a year of operation. Find the corresponding change in mass of reactor tuel, assuming all of the energy released by the uel can be converted directly to electrical energy, in a pracnea reactor, on a reative sına acaon the energy can be converted to electricity.) kg