Affiliation:
1. Fluids Group, Applied Heat Transfer Division, National Engineering Laboratory, East Kilbride.
Abstract
Transfer functions, relating outlet temperature responses to disturbances in flow rate, are presented for a single/two-pass heat exchanger with distributed wall and fluid thermal capacitance. Good agreement is shown between the measured and predicted outlet temperature responses of both shell and tube-side fluids. The accuracy of an overall lumped model as an approximation to such a system is examined.