Analytical Solution of Dynamic Response of Heat Exchanger

Two-fluid heat exchangers are widely used in almost every energy process such as those in power plants, gas turbines, air-conditioning systems, numerous chemical plants and home appliances. Every change of steady state or starting of a plant causes changes in the system which can considerably affect not only the observed process but also the safety of the plant’s operations. In all above cases, it is important to know the dynamic behavior of a heat exchanger in order to choose the most suitable design, controls and operations. The traditional design based on stationary approach has become inadequate and nowadays, more attention is devoted to the analysis of the heat exchanger’s dynamic behavior and its design is adjusted to such conditions of work. Although the process control technology has made considerable headway, its practical application requires the knowledge of the dynamic behavior of both the plant’s components and the plant as a whole.