On the Transient Characteristics of Boilers

Abstract

The transient characteristics of boiler is very important for the steady operation of boiler and for the synthesis of A. C. C., In the previous paper⁽⁴⁾, the auther analyzed A. C. C. problem and gave the optimum setting values of controller. In this paper, he researched by experiments the carrelation of the boiler pressurelor for the steam demand, fuel supply and the quantity of feed water. As a result, the previous calculation exactly coincided with the experimental values. And it is a Known fact that the combustion time constant (T_f) of boiler was always contant and was about 30 second for oil burning and about 1 minute for coal burning, regardless of the steam demand and the magnitude of diturbance.