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  2. Cubic metre per second - Wikipedia

    en.wikipedia.org/wiki/Cubic_metre_per_second

    Cubic metre per second or cubic meter per second in American English (symbol m 3s −1 or m 3 /s) is the unit of volumetric flow rate in the International System of Units (SI). It corresponds to the exchange or movement of the volume of a cube with sides of one metre (39.37 in) in length (a cubic meter , originally a stere ) each second .

  3. List of energy abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_energy_abbreviations

    CERTS—Consortium for Electric Reliability Technology Solutions sponsored by the United States Department of Energy and California Energy Commission (US) CfD—Contract for difference; CFScubic feet per second; CFTC—Commodity Futures Trading Commission; CGR—Charge Gas Recirculation, Compact Gas Ramp (like FGSU) CH 4 —Methane

  4. Cold-formed steel - Wikipedia

    en.wikipedia.org/wiki/Cold-formed_steel

    The yield stress value of cold-formed steel is usually between 33ksi and 80ksi. The measured values of modulus of elasticity based on the standard methods usually range from 29,000 to 30,000 ksi (200 to 207 GPa). A value of 29,500 ksi (203 GPa) is recommended by AISI in its specification for design purposes.

  5. Distribution board - Wikipedia

    en.wikipedia.org/wiki/Distribution_board

    A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

  6. Circuit total limitation - Wikipedia

    en.wikipedia.org/wiki/Circuit_total_limitation

    The 1965 edition of the NEC, article 384-15 was the first reference to the circuit total limitation of panelboards. [1] As of 2008, the location of this language is at Article 408.54 now titled "Maximum Number of Overcurrent Devices."

  7. Pipe network analysis - Wikipedia

    en.wikipedia.org/wiki/Pipe_network_analysis

    In this formulation, first you go through and create guess values for the flows in the network. The flows are expressed via the volumetric flow rates Q. The initial guesses for the Q values must satisfy the Kirchhoff laws (1). That is, if Q7 enters a junction and Q6 and Q4 leave the same junction, then the initial guess must satisfy Q7 = Q6 + Q4.

  8. Volumetric heat capacity - Wikipedia

    en.wikipedia.org/wiki/Volumetric_heat_capacity

    In monatomic gases (like argon) at room temperature and constant volume, volumetric heat capacities are all very close to 0.5 kJ⋅K −1 ⋅m −3, which is the same as the theoretical value of ⁠ 3 / 2 ⁠ RT per kelvin per mole of gas molecules (where R is the gas constant and T is temperature). As noted, the much lower values for gas heat ...

  9. List of insulation materials - Wikipedia

    en.wikipedia.org/wiki/List_of_insulation_materials

    Typical R-values are given for various materials and structures as approximations based on the average of available figures and are sorted by lowest value. R-value at 1 m gives R-values normalised to a 1 metre (3 ft 3 in) thickness and sorts by median value of the range.