Semantic Annotation for Web Service Processes

An electric boiler includes a first electrode disposed within a chamber and comprising an upwardly oriented water nozzle surrounded by a convolute electrode member. A second electrode is disposed within the chamber vertically above the first electrode and has a bottom center opening for receiving water from the nozzle and a dome for redirecting the same radially outwardly. The second electrode also includes an annular water receptor surrounding said opening and having a plurality of drain openings spaced from the center opening and a plurality of pipe sections of different lengths disposed respectively in said openings for discharging water downwardly onto the convolute electrode member. Control means is connected to the nozzle for varying the water delivery rate therefrom in response to steam pressure in said chamber.