Estimates of Costs of Conventional Coal Fired Steam Production Plants.

摘要

The costs of steam supply plants using stoker and pulverized coal firing was estimated. Conceptual designs have been prepared for each combustion system for plants with one and four 250,000 pound per hour boilers producing steam at 650 psig and 750 F. The capital costs of these plants are very dependent on the site, application, and type of coal selected. Capital costs of about $50 to $55 per pound per hour of capacity can be expected for single unit plants. Four unit plants cost less, approximately $35 to $45 per pound per hour, because of the many systems which are common to all boilers. Operations and maintenance costs, excluding coal, were also prepared. These also can vary widely, depending on the specific plant application. For this estimate, it was assumed that the steam plant would be staffed independently of adjacent process facilities. (ERA citation 03:008859)