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  2. Pound per hour - Wikipedia

    en.wikipedia.org/wiki/Pound_per_hour

    Pound per hour is a mass flow unit based on the international avoirdupois pound, which is used in both the British imperial and, being a former colony of Britain, the United States customary systems of measurement. It is abbreviated as PPH, or more conventionally as lb/h.

  3. Per-unit system - Wikipedia

    en.wikipedia.org/wiki/Per-unit_system

    Conversion of per-unit quantities to volts, ohms, or amperes requires a knowledge of the base that the per-unit quantities were referenced to. The per-unit system is used in power flow, short circuit evaluation, motor starting studies etc. The main idea of a per unit system is to absorb large differences in absolute values into base relationships.

  4. PPH - Wikipedia

    en.wikipedia.org/wiki/PPH

    Pound per hour (symbol pph), mass flow unit (used in aviation to measure fuel flow, for instance) Part per hundred (percentage) People per hour, a measure of the rate of flow of people moving past a fixed point or through a system; Propylphenidate, an analogue of methylphenidate

  5. Passengers per hour per direction - Wikipedia

    en.wikipedia.org/wiki/Passengers_per_hour_per...

    Comparative passenger capacity per hour of various modes of transport. The corridor capacity in the passenger transport field refers to the maximum number of people which can be safely and comfortably transported per unit of time over a certain way with a defined width. The corridor capacity does not measure the number of vehicles which can be ...

  6. Takt time - Wikipedia

    en.wikipedia.org/wiki/Takt_time

    Takt time, or simply takt, is a manufacturing term to describe the required product assembly duration that is needed to match the demand.Often confused with cycle time, takt time is a tool used to design work and it measures the average time interval between the start of production of one unit and the start of production of the next unit when items are produced sequentially.

  7. Hydraulic calculation - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_calculation

    The hydraulic calculation procedure is defined in the applicable reference model codes such as that published by the US-based National Fire Protection Association (NFPA), [2] or the EN 12845 standard, Fixed firefighting system – Automatic sprinkler systems – Design, installation and maintenance.

  8. FTP-75 - Wikipedia

    en.wikipedia.org/wiki/FTP-75

    SFTP US06 is a high speed/quick acceleration loop that lasts 10 minutes, covers 8 miles (13 km), averages 48 mph (77 km/h) and reaches a top speed of 80 mph (130 km/h). Four stops are included, and brisk acceleration maximizes at a rate of 8.46 mph (13.62 km/h) per second. The engine begins warm and air conditioning is not used.

  9. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    In order to achieve a given SIL, the device must meet targets for the maximum probability of dangerous failure and a minimum safe failure fraction. The concept of 'dangerous failure' must be rigorously defined for the system in question, normally in the form of requirement constraints whose integrity is verified throughout system development.