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Show DISCUSSION In 1987 , while most boiler variables are computer managed. it is strange to find that one of the boilers fundemental areas(le the heat tran~fer surfaces) 1s treated in a very casuaf manner. For instance, during case study 2 it was found that 277. of all sootblowing was unnecessary. and the ·blowers were in fact operat1ng on clean tubes, a situation which can only be detremental to tube life. It soon becomes app4rrent when studying the available data. that operating a boiler without real direct slag monitoring equipment 1s an ineffec1ent and unnecessary situatlon. CONCLUSIONS 1. Land Pyrometers Fluxtube and Fluxdome provide accurate indications of absorbed bOiler .beat flux. Other instruments claiming the same, upon examination proved to have many fundemental, 1nsoluable shortcomings. 2.Measurement of bol1er absorbed heat flux can be benef1cal to many areas of boiler operat1on . Land heat flux measuring devices give accurate information about slagging levels and problems, optimum sootblowing(bo1ler cycle) times. areas of h1gh heat flux, 1nefficient or inoperative sootblowers and furnace tube dry out. 3. A monitored sootblowing system could 1~prove bOiler efficiency and help maintain evaporative marg1n. This would lead d1rectely to lower superheater outlet temperature and reduced attemporator requirement. 4. A conputer controlled heat flux monitor1ng system could lead to automated sootblow1ng and a better visual idea of the condition of the bo1~er heat transfer 5urtaces . Such a system would lead to in~reased Caller e::1ciency, lower sootblower requirement (lnore effic1ent cOiler cycling), reduced risk of slag bridging, lower boiler rwaintainance requ1rement, longer mean ti~ between failure of boiler tubes and extended boiler life. It is obvious that the pot~ntlal saving of such an installation are cons1derable . Land Pyrometers will offer a system that will fulfil the advantages listed in 4 above by late in 1987. |