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  2. Pipe network analysis - Wikipedia

    en.wikipedia.org/wiki/Pipe_network_analysis

    To satisfy the Kirchhoff's second laws (2), we should end up with 0 about each loop at the steady-state solution. If the actual sum of our head loss is not equal to 0, then we will adjust all the flows in the loop by an amount given by the following formula, where a positive adjustment is in the clockwise direction.

  3. Unit commitment problem in electrical power production

    en.wikipedia.org/wiki/Unit_Commitment_Problem_in...

    In the single bus approximation the grid is ignored: demand is considered to be satisfied whenever total production equals total demand, irrespective of their geographical location. In the DC approximation only Kirchhoff's current law is modeled; this corresponds to reactive power flow being neglected, the voltage angles differences being ...

  4. Kirchhoff's circuit laws - Wikipedia

    en.wikipedia.org/wiki/Kirchhoff's_circuit_laws

    Kirchhoff's circuit laws were originally obtained from experimental results. However, the current law can be viewed as an extension of the conservation of charge, since charge is the product of current and the time the current has been flowing. If the net charge in a region is constant, the current law will hold on the boundaries of the region.

  5. Mesh analysis - Wikipedia

    en.wikipedia.org/wiki/Mesh_analysis

    A more general technique, called loop analysis (with the corresponding network variables called loop currents) can be applied to any circuit, planar or not [citation needed]. Mesh analysis and loop analysis both make systematic use of Kirchhoff’s voltage law to arrive at a set of equations guaranteed to be solvable if the circuit has a ...

  6. Kirchhoff's laws - Wikipedia

    en.wikipedia.org/wiki/Kirchhoff's_laws

    Kirchhoff's laws, named after Gustav Kirchhoff, may refer to: Kirchhoff's circuit laws in electrical engineering; Kirchhoff's law of thermal radiation; Kirchhoff equations in fluid dynamics; Kirchhoff's three laws of spectroscopy; Kirchhoff's law of thermochemistry; Kirchhoff's theorem about the number of spanning trees in a graph

  7. Harmonic balance - Wikipedia

    en.wikipedia.org/wiki/Harmonic_balance

    Harmonic balance is a method used to calculate the steady-state response of nonlinear differential equations, [1] and is mostly applied to nonlinear electrical circuits. [2] [3] [4] It is a frequency domain method for calculating the steady state, as opposed to the various time-domain steady-state methods.

  8. Law of demand - Wikipedia

    en.wikipedia.org/wiki/Law_of_demand

    The law of demand applies to a variety of organisational and business situations. Price determination, government policy formation etc are examples. [6] Together with the law of supply, the law of demand provides to us the equilibrium price and quantity. Moreover, the law of demand and supply explains why goods are priced at the level that they ...

  9. Diode modelling - Wikipedia

    en.wikipedia.org/wiki/Diode_modelling

    To illustrate the complications in using this law, consider the problem of finding the voltage across the diode in Figure 1. Figure 1: Diode circuit with resistive load. Because the current flowing through the diode is the same as the current throughout the entire circuit, we can lay down another equation.