Page 501 - Boiler_Operators_Handbook,_Second_Edition

486 Boiler Operator’s Handbook

reverse acting controllers 368 scrubber type of deaerator 253 split case pump 336
reverse osmosis (RO) 250 seatless blowoff valves 89, 305 spray type deaerators 253
right-sizing 118 secondary air ports 314 spreader stoker 322
risers 276 secondary ratings 267 spuds 316
riveted boiler 284 self-contained controls 381 Sq. Ft. E.D.R. 18
Roman baths 278 sensing connections 425 square 12
roof curb 193 sensing lines 424 stable combustion 311
room conditions 182 sentinel valve 101 stack thermometers 427
root pass 224 separating fluid 212 staged combustion 314
rotary blowers 349 separating oil 425 staged unloading 354
rotary compressors 356 sequester 260 stage of a turbine 23
rotary cup burners 318 service stub 180 standard operating procedures 41
rotate a pump 81 service water 132 standard ranges of control signals
rotating boilers 87 Servidyne Systems 31 366
rotating equipment 345 setpoint 366 standards 267
roughness on light off 30 setting 278 standby charges 356
RTUs (roof top units) 192 for automatic three boiler control standby operation 86
rule of thirds 111 387 starting a boiler with an induced
rupture 95 severe duty motors 38 draft fan 349
rupture disc 174 shaft seal 327 starting a dry pump 343
RV refrigerator 175 on a power turbine 103 start-up control 407
sheave 346 start-up sheet 134
S shim stock 328 static electricity 33
safety 5 shortening purge 434 static pressure 16
factor 265 short off cycles 343 static regain 190
relief valves 295 shot feeders 241 staybolts 284
salt 241 shrink 392 steam 304
salt elutrition test 249 shrouds 313 steam air heaters 309
sample cooler 245 single element control 393 steam and water cycle 21
sander dust 237 single loop control 380 steam atomizing burners 317
sand filters 248 single phasing 37 steam drum 285
saturation card 150 siphon 302 internals 293
saturation condition 18 slag 224 steam explosions 21
saturation point 18 sling psychrometer 196 steam flow/air flow 411
saturation temperature 18 slope 337 steam flow recorders 422
sawdust 237 slow start-up 72 steam generating units 70
SCADA 181 sludge 260 steam humidifiers 187
scale formation 244 sludge conditioners 261 steam pressure maintenance 384
SCBA 146 small tools 242 steam quench 131
scfm (standard cubic feet per min- soda-phosphate 261 steam tracing 131
ute) 352 sodium 249 steel tanks 232
schools 47 sodium hexa-meta-phosphate 261 Sterling boilers 287
Scientific Apparatus Manufacturer’s sodium hydroxide 259 still pipe 390
Association 380 sodium sulfite 242, 259 stoichiometric 25
screen tubes 286 soot blowers 218 storage water heating 133
screw and gear pumps 341 operation 113 stored fuel oil 217
screw compressors 355 sounding 423 stratosphere 146
refrigerant 157 spalling 206 stress 263
screw pump 342 sparge line 252 stress-strain diagram 263
scroll 348 specific gravity 9 strike three 31
scroll compressors 156 specific volume 10 stringers 225