S Auder Woodworking Company: a Waste Wood Electric Gener Ating Facility

The author has presented an excellent paper describing considerations that went into the development and imple­ mentation of the subject facility. The use of some pho­ tographs in the paper was particularly helpful. The photo on p. 240 shows open structural members around the bottom of the key air pollution control elements. For very little additional capital cost, these areas can be en­ closed with plain uninsulated sheet metal. This pays huge dividends when it comes to maintenance and repair work in windy, cold, or rainy weather. Why is such an enclosure not commonly included in such projects? The cost is minimal­ usually less than I % of total project cost and it pays for itself in only perhaps two inclement weather repair projects. In addition, such enclosures provide a more attractive ap­ pearance and offer additional storage space for maintenance and repair parts. Pages 240 and 241 state that the Selective Catalytic Reduction system (SCR) is located between the Electrostatic Precipitator (EP) and the economizer. It is also stated that the temperature into the SCR is expected to be 650°F. That seems to be an excessively high temperature. The author sites "high energy costs" as essential to pro­ ject economics. This is usually the case. It is an important issue in all energy recovery projects. However, it is unclear from the paper just what the economic agreement is between the power company and the Sauder Woodworking Company. Could the author expand on this facet? This was an excellent and detailed paper worthy of note. It appears that the facility can probably function well. Perhaps the author would be so brave as to commit to a re­ visitation of this subject facility two years later at the ASME 1996 Solid Waste Processing Division Conference. This