DIGESTER WARM WATER LOOP - REPLACEMENT BOILER

Matrix Engineering provided the mechanical and process design for the installation of a replacement boiler for the Paducah McCracken Joint Sewer Agency. The JSA had been operating an older existing boiler that had fallen out of compliance with the state boiler code and was in need of repair.

We determined that the previous boiler had been insufficiently sized; and on top of that we were faced with spatial constraints on an already tightly fit layout. We were able to determine that a 2.4 MM BTUH natural gas hydronic compact boiler was required to aid in maintaining the proper temperature within their digesters to satisfy the biological process. We were also able to install this within the confines of the old boiler envelope to satisfy the operation and maintenance requirements. The new natural gas boiler provided a superior turndown of 4:1 over the previous firebox and was also an improvement in the realm of energy use, operating at 87% efficiency.