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  2. Shutdown valve - Wikipedia

    en.wikipedia.org/wiki/Shutdown_valve

    A blowdown valve (BDV) is a type of shutdown valve designed to depressurize a pressure vessel by directing vapour to a flare, vent or blowdown stack in an emergency. BDVs fail-safe to the open position upon failure of the control system. [1] The type of valve, type of actuation and performance measurement are similar to an ESD valve.

  3. Process plant shutdown systems - Wikipedia

    en.wikipedia.org/wiki/Process_plant_shutdown_systems

    ESD level 3: provides fluid containment by closing shutdown isolation valves or emergency shutdown valves (ESDVs). The safety shutdown system shall shut down the facilities to a safe state in case of an emergency situation, thus protecting personnel, the environment and the asset. The safety shutdown system shall manage all inputs and outputs ...

  4. Partial stroke testing - Wikipedia

    en.wikipedia.org/wiki/Partial_stroke_testing

    Partial stroke testing (or PST) is a technique used in a control system to allow the user to test a percentage of the possible failure modes of a shut down valve without the need to physically close the valve. PST is used to assist in determining that the safety function will operate on demand.

  5. Air-start system - Wikipedia

    en.wikipedia.org/wiki/Air-start_system

    Control components include the control valves and remote air-start valves. [1] A direct start system as used on a marine slow-speed diesel is required to have up to 12 starts on a non-reversing engine or 6 starts on a reversible, or geared, engine.

  6. Dave 'Heavy D' Sparks - Wikipedia

    en.wikipedia.org/wiki/Dave_'Heavy_D'_Sparks

    As an internet personality, his Youtube channel has over 4.1 million subscribers and over 900 million views. [14] He has over 10 million followers and over 2 billion views across all social media platforms. [15] During the course of filming Diesel Brothers, he has also worked with actor, Chuck Norris, amongst others. [7]

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Multi-valve - Wikipedia

    en.wikipedia.org/wiki/Multi-valve

    The 16-valve 1.8-liter straight-4 produced 139 PS (102 kW; 137 bhp) or 56.7 kW/liter, almost 25% up from the 45.6 kW/liter for the previous 8-valve Golf GTI engine. The GM Quad 4 multi-valve engine family debuted early 1987. The Quad 4 was the first mainstream multi-valve engine to be produced by GM after the Chevrolet Cosworth Vega. The NA ...

  9. Dieseling - Wikipedia

    en.wikipedia.org/wiki/Dieseling

    The ignition source of a diesel engine is the heat generated by the compression of the air in the cylinder, rather than a spark as in gasoline engines. The dieseling phenomenon occurs not just because the compression ratio is sufficient to cause auto-ignition of the fuel, but also because a hot spot inside the cylinder (spark plug electrode ...