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Title: Coal quality field test at Watson Unit 4 of Mississippi Power Company. Final report

Technical Report ·
OSTI ID:135532
;  [1];  [2];  [3];  [4];  [5]
  1. Electric Power Technologies, Inc., Menlo Park, CA (United States)
  2. Southern Research Inst., Birmingham, AL (United States)
  3. Energy and Environmental Research Corp., Orrville, OH (United States)
  4. Southern Co. Services, Inc., Birmingham, AL (United States)
  5. Fossil Energy Research Corp., Laguna Hills, CA (United States)

Two products of coal quality research at the Electric Power Research Institute TM (EPRI) are available for field evaluation: Coal Quality Impact Model (CQIM and Fireside Testing Guidelines (FIG). The CQIM is a computer program that may be tailored to simulate the performance characteristics of a coal-fired power plant. The FIG is a technical report that guides utilities in conducting field tests to gather performance data and quantify the technical and economic impacts of different coals. Moreover, the results from field tests may be utilized to validate and assess the applicability of the CQIM. Field tests were conducted at Mississippi Power Company`s Watson Unit 4 to evaluate the coal quality impacts of coal switching on boiler performance and emissions. Watson Unit 4 is a 255 MW (gross), opposed-wall, pulverized-coal-fired boiler manufactured by Riley Stoker Corporation and rated at 1,779,000 lb/hr steam flow at 1000{degrees}F superheat steam temperature and 2,500 psig. The unit is equipped with a cold-side electrostatic precipitator for particulate matter control. Comprehensive tests were conducted on all major equipment components, including the pulverizers, fans, combustion equipment, boiler heat transfer surfaces, air preheater, and electrostatic precipitator, for two coals. The CQIN4 was configured to predict the performance of the unit when burning each coal. The work was sponsored by EPRI, and Mississippi Power Company (MPC) was the host utility company. This report summarizes results from the field test program, including potential heat rate improvements that were identified, and the differences in unit operations and performance for the two coals. The results from the CQIM validation effort are also presented.

Research Organization:
Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Electric Power Technologies, Inc., Menlo Park, CA (United States); Southern Research Inst., Birmingham, AL (United States); Energy and Environmental Research Corp., Orrville, OH (United States); Southern Co. Services, Inc., Birmingham, AL (United States); Fossil Energy Research Corp., Laguna Hills, CA (United States)
Sponsoring Organization:
Electric Power Research Inst., Palo Alto, CA (United States)
OSTI ID:
135532
Report Number(s):
EPRI-TR-105137
Resource Relation:
Other Information: PBD: Aug 1995
Country of Publication:
United States
Language:
English