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  2. RELAP5-3D - Wikipedia

    en.wikipedia.org/wiki/RELAP5-3D

    RELAP5-3D is an outgrowth of the one-dimensional RELAP5/MOD3 code developed at Idaho National Laboratory (INL) for the U.S. Nuclear Regulatory Commission (NRC). The U.S. Department of Energy (DOE) began sponsoring additional RELAP5 development in the early 1980s to meet its own reactor safety assessment needs.

  3. Plug flow reactor model - Wikipedia

    en.wikipedia.org/wiki/Plug_flow_reactor_model

    A real plug flow reactor has a residence time distribution that is a narrow pulse around the mean residence time distribution. A typical plug flow reactor could be a tube packed with some solid material (frequently a catalyst). Typically these types of reactors are called packed bed reactors or PBR's.

  4. Attainable region theory - Wikipedia

    en.wikipedia.org/wiki/Attainable_Region_Theory

    Attainable region (AR) theory is a branch of chemical engineering, specifically chemical reaction engineering, that uses geometric and mathematical optimization concepts to assist in the design of networks of chemical reactors. AR theory is a method to help define the best reactor flowsheet using graphical techniques for a desired duty or ...

  5. Hydrogen-moderated self-regulating nuclear power module

    en.wikipedia.org/wiki/Hydrogen-moderated_self...

    According to the patent application [5] the reactor design has some notable characteristics, that sets it apart from other reactor designs. It uses uranium hydride (UH 3) "low-enriched" to 5% uranium-235—the remainder is uranium-238—as the nuclear fuel, rather than the usual metallic uranium or uranium dioxide that composes the fuel rods of contemporary light-water reactors.

  6. Continuous stirred-tank reactor - Wikipedia

    en.wikipedia.org/.../Continuous_stirred-tank_reactor

    The continuous stirred-tank reactor (CSTR), also known as vat-or backmix reactor, mixed flow reactor (MFR), or a continuous-flow stirred-tank reactor (CFSTR), is a common model for a chemical reactor in chemical engineering and environmental engineering. A CSTR often refers to a model used to estimate the key unit operation variables when using ...

  7. Monte Carlo N-Particle Transport Code - Wikipedia

    en.wikipedia.org/wiki/Monte_Carlo_N-Particle...

    It is often used to design large-scale measurements providing a significant time and cost savings to the community. LANL's latest version of the MCNP code, version 6.2, represents one piece of a set of synergistic capabilities each developed at LANL; it includes evaluated nuclear data (ENDF) and the data processing code, NJOY.

  8. Levenspiel plot - Wikipedia

    en.wikipedia.org/wiki/Levenspiel_plot

    If is plotted as a function of , the required volume to achieve a specific conversion can be determined given an entering molar flow rate. The volume of a CSTR necessary to achieve a certain conversion at a given flow rate is equal to the area of the rectangle with height equal to F A o − r A {\displaystyle F_{Ao} \over -r_{A}} and width ...

  9. Thyristor-controlled reactor - Wikipedia

    en.wikipedia.org/wiki/Thyristor-controlled_reactor

    The current in the TCR is varied from maximum (determined by the connection voltage and the inductance of the reactor) to almost zero by varying the "Firing Delay Angle", α. α is defined as the delay angle from the point at which the voltage becomes positive to the point at which the thyristor valve is turned on and current starts to flow.

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