Abstract
From the view point of control technique, many studies on the transient performance of heat-exchanger were reported. In most of them temperature is regarded as the input and output variables. But the fluid temperature is seldom handled as manipulated variable. Generally in actual cases, flow-rate of fluid is manipulated to control the output temperature.
The authors tried to describe the transient performance in the actual situations by assuming the flow-rate as manipulated variable and the output temperature as controlled variable.
In this paper, some experimental results and theoretical considerations on the shell & tube type heat-exchangers are reported. The considerations to describe the transient performance are based on the actual construction factors of the heat-exchanger and static characteristics derived by experiments and theoretical calculation.
