ASME SECTION VI 2013 Recommended Rules for the Care and by American Society of Mechanical Engineers

By American Society of Mechanical Engineers

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8 --``,``,`,````,````````,,,,``,,`-`-`,,`,,`,`,,`--- 2013 SECTION VI coke breeze: fine coke screenings usually passing a 1/2 in. (13 mm) or 3/4 in. (19 mm) screen opening. Bunker C oil: residual fuel oil of high viscosity commonly used in marine and stationary steam power plants (No. 6 fuel oil). coke oven gas: gas produced by destructive distillation of bituminous coal in closed chambers. The heating value is 500 Btu/ft3 (4 450 kCal/m3) to 550 Btu/ft3 (4 395 kCal/m3). burner: a device for the introduction of fuel and air into a furnace at the desired velocities, turbulence, and concentration to establish and maintain proper ignition and combustion of the fuel.

Valve, safety relief: for use on hot water heating and supply boilers not exceeding 160 psi (1 100 kPa) MAWP, a direct spring‐loaded pressure relief valve designed to actuate on inlet static pressure and characterized by rapid opening followed by further increase in disk lift with increasing overpressure. ambient air: the air that surrounds the equipment. 92 in. Hg (760 mm Hg). vent: an opening in a vessel or other enclosed space for the removal of gas or vapor. aspirating burner: a burner in which the fuel in a gaseous or finely divided form is burned in suspension, the air for combustion being supplied by bringing it into contact with the fuel.

Peepdoor: a small door usually provided with a shielded glass opening through which combustion may be observed. refractory baffle: a baffle of refractory material. relief valve: see safety relief valve. peephole: a small hole in a door covered by a movable cover. retarder: a straight or helical strip inserted in a firetube primarily to increase the turbulence. pitch: the distance between center lines of tubes, rivets, staybolts, or braces. rifled tube: a tube that is helically grooved on the inner wall.

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