A search for a relatively inexpensive material for combined acid resistance and ease of cleaning pointed to the use of porcelain enamel on a low-cost base metal. These specially formulated porcelain enamels have resisted acid attack, thereby prolonging the service life of the element, thus opening the avenue for lowering exit-gas temperatures and improving boiler efficiency.

This content is only available via PDF.
You do not currently have access to this content.