Super Boiler 2nd Generation Technology for Watertube Boilers

Mr. David Cygan ; Dr. Joseph Rabovitser

关键词: BOILERS;    CAPACITY;    CAPITALIZED COST;    COMBUSTION;    DESIGN;    EFFICIENCY;    HEAT RECOVERY;    HEAT TRANSFER;    MANUFACTURERS;    NATURAL GAS;    ORGANIC COMPOUNDS;    ORNL;    PERFORMANCE;    STEAM;    SUPERHEATING;    VOLATILE MATTER Boiler;    low emissions;    energy;    natural gas;    oil-firing;   

DOI  :  10.2172/1037464
RP-ID  :  DE-FG36-05GO15189
PID  :  OSTI ID: 1037464
Others  :  Other: GTI 20305
Others  :  TRN: US201208%%184

美国|英语

来源: SciTech Connect

【 摘 要 】

This report describes Phase I of a proposed two phase project to develop and demonstrate an advanced industrial watertube boiler system with the capability of reaching 94% (HHV) fuel-to-steam efficiency and emissions below 2 ppmv NOx, 2 ppmv CO, and 1 ppmv VOC on natural gas fuel. The boiler design would have the capability to produce >1500 F, >1500 psig superheated steam, burn multiple fuels, and will be 50% smaller/lighter than currently available watertube boilers of similar capacity. This project is built upon the successful Super Boiler project at GTI. In that project that employed a unique two-staged intercooled combustion system and an innovative heat recovery system to reduce NOx to below 5 ppmv and demonstrated fuel-to-steam efficiency of 94% (HHV). This project was carried out under the leadership of GTI with project partners Cleaver-Brooks, Inc., Nebraska Boiler, a Division of Cleaver-Brooks, and Media and Process Technology Inc., and project advisors Georgia Institute of Technology, Alstom Power Inc., Pacific Northwest National Laboratory and Oak Ridge National Laboratory. Phase I of efforts focused on developing 2nd generation boiler concepts and performance modeling; incorporating multi-fuel (natural gas and oil) capabilities; assessing heat recovery, heat transfer and steam superheating approaches; and developing the overall conceptual engineering boiler design. Based on our analysis, the 2nd generation Industrial Watertube Boiler when developed and commercialized, could potentially save 265 trillion Btu and $1.6 billion in fuel costs across U.S. industry through increased efficiency. Its ultra-clean combustion could eliminate 57,000 tons of NOx, 460,000 tons of CO, and 8.8 million tons of CO2 annually from the atmosphere. Reduction in boiler size will bring cost-effective package boilers into a size range previously dominated by more expensive field-erected boilers, benefiting manufacturers and end users through lower capital costs.