the coking properties of coal at elevated pressures. - Argonne ...
the coking properties of coal at elevated pressures. - Argonne ... the coking properties of coal at elevated pressures. - Argonne ...
FFFFH F F FBH 3000H 2000H 000OH' '0 FIGURE 3. D. A.U. MEMORY MAP. 2 08 12 K 8K
SAMPLING SYSTEM FOR FLUIDIZED BED APPLICATIONS - RESULTS OF FOUR YEARS OF TESTING ON B&W/EPRI's 6' x 6' FLUIDIZED BED TEST FACILITY INTRODUCTION K. L. Loudin and P. W. Maurer The Babcock & Wilcox Company Research and Development Division Alliance Research Center Alliance, Ohio 44601 W. Howe Electric Power Research Institute Palo Alto, California 94304 In cooperation with The Electric Power Research Institute (EPRI), The Babcock 6 Wilcox Company (B&W) has built and is operating a 6-foot x 6-foot (6' x 6') Atmospheric Fluidized Bed Combustion (AFBC) Development Facility at its Alliance Research Center in Alliance, Ohio. A complete description of the facility design details is contained in EPRI Final Report '3-1688. An artist's rendition (Figure 1) identifies the major components of the facility. The 6' x 6' size was selected as being large enough to bridge the gap between bench-scale units then in operation and larger, future units in the proposal and/or construction stages. The facility design is flexible (versatile to modifications) in many areas -- number of feed points, immersed tube bundle configurations, ash recycle configurations, interchangeable gas sample systems, etc. -- and is highly instrumented (controls, interlocks, data acquisition, and sampling) to closely simulate utility boiler designs. The size, design, and equipment selections have produced a hot test facility with the capability of generating significant performance data over extended periods of steady operation for a multiple number of planned test conditions. The facility construction was completed in October 1977. Following a 5-month startup and debugging phase, the first test series was conducted in April 1978. Since that time, approximately 2000 hours of testing (five to eight test series) per year have been logged. GAS SAMPLING SYSTEMS Evaluation of the performance of the 6' x 6' AFBC test facility mandated accurate sampling and gas concentration measurements. For example, measurements of C02, CO, and Hydrocarbons are used in calculating combustion efficiency while the measurement of SO2 is needed to calculate sulfur capture. Oxygen measurements, also used idperformance calculations, are used by the operators in setting the desired facility operating test conditions. Figure 2 shows the location of the main gas and solids sample points on the 6' x 6' unit. Obtaining gas concentration data required the use of a sampling system that included the use of many special instruments and/or equipment. The original system layout and details are shown on Figure 3 and Table 1, respectively. The two independent systems that make up the complete system are identified as the mobile and furnace outlet systems. Sampling flexibility is gained by being able to 209
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- Page 167 and 168: I TITANIUM L Corn AS A TRACER FOR D
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- Page 171 and 172: \ ? CONCLUSIONS Titanium can accura
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- Page 193 and 194: MBC CBC Fig. 1 Boiler Structure 193
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- Page 203 and 204: \if F3.3 - Particulate Circulation
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- Page 227 and 228: P SUMMARY OF TESTS Testing complete
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- Page 231 and 232: , NITROGEN OXIDE REDUCTION Single-S
- Page 233 and 234: 0 The addition of air at the 96-inc
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- Page 239 and 240: 0 f 0.so o'm: 0.300 0.zo - - A 5m 4
- Page 241 and 242: &e- -A \ \ \ : ERCENT OVERBED AIR I
- Page 243 and 244: PARTICLE ENTRAINMENT AND NITRIC OXI
- Page 245 and 246: i 1' 1 ! I. i Chaung (15) showed th
- Page 247 and 248: The maximum height that a large par
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FFFFH<br />
F F FBH<br />
3000H<br />
2000H<br />
000OH' '0<br />
FIGURE 3. D. A.U. MEMORY MAP.<br />
2 08<br />
12 K<br />
8K
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