Pressure Ratio – Brayton Cycle – Gas Turbine | nuclear-power.com
In modern nuclear power plants, the overall thermal efficiency is about one-third (33%), so 3000 MWth of thermal power from the fission reaction is needed to generate 1000 MWe of electrical power. Higher efficiencies can be attained by increasing the temperature of the steam.
Potassium – Melting Point – Boiling Point - Nuclear Power for …
Nov 26, 2021 · Potassium – Melting Point and Boiling Point. Melting point of Potassium is 63.25°C. Boiling point of Potassium is 760°C. Note that these points are associated with the standard atmospheric pressure.. Boiling Point – Saturation
Nuclear Power for Everybody - What is Nuclear Power
What is Nuclear Power? This site focuses on nuclear power plants and nuclear energy. The primary purpose is to provide a knowledge base not only for experienced.
Prompt Critical Reactor | nuclear-power.com
The period of ~10-5 s is very short and causes a very fast response of the reactor power in case of prompt criticality. The state of a reactor, when the chain reaction is self-sustained only by prompt neutrons, is known as the prompt critical state .
Vapor Quality – Dryness Fraction - Nuclear Power for Everybody
Typically most nuclear power plants operate multi-stage condensing steam turbines. In these turbines, the high-pressure stage receives steam (this steam is nearly saturated steam – x = 0.995 – point C at the figure) from a steam generator and exhausts it to a moisture separator-reheater (point D).
Neutron Capture Cross-section | nuclear-power.com
Broadened resonance (heating of a fuel) results in a higher probability of absorption, thus cause negative reactivity insertion (reduction of reactor power). The Doppler broadening of resonances is a very important phenomenon, which improves reactor stability .
Bubble nucleation Definition & Example | nuclear-power.com
Sep 5, 2023 · Industrially, bubble nucleation is essential for processes like boiling heat transfer, which is widely used in power generation and cooling systems. The nucleation and growth of vapor bubbles in boiling fluids can significantly impact heat transfer efficiency, making it crucial to understand and optimize the nucleation process for various ...
Isobaric Process – Heat and Energy - Nuclear Power for Everybody
It is obvious, it will be very useful in analysis of both thermodynamic cycles used in power engineering, i.e., in Brayton cycle and Rankine cycle. Isobaric process – main characteristics The volume is directly proportional to the Kelvin temperature for a …
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Kirchhoff’s Law of Thermal Radiation - Nuclear Power for Everybody
The emissivity, ε, of the surface of a material is its effectiveness in emitting energy as thermal radiation and varies between 0.0 and 1.0.. By definition, a blackbody in thermal equilibrium emissivity of ε = 1.0.Real objects do not radiate as much heat as a perfect black body, and they radiate less heat than a black body and therefore are called gray bodies.