Energy-Saving Effect of Rational Enhancement of Heat Transfer in Non-Round Surface Channels

摘要

Rational enhancement of convective heat transfer process is implemented in the studied heat transfer surface reliably controlled by changing the values of the channel parameters and it has been experimentally proved. The values of the maximum assessment are established as well as the implementation conditions and the ranges of values of the current estimates of the rational enhancement of convective heat transfer process are established too. This experimental method is proposed for directly determining the coefficient of pressure loss of friction in the channels of the heat transfer apparatus even of very small sizes. A universal working area of aerodynamic tube has been developed for this purpose. This graphic method has been proposed and implemented for determining and observing a continuous change in the values of current performance evaluations of the rational enhancement of convective heat transfer process. It is required for construction of dimensionless parameters of plate-ribbed sliced heat transfer surface across the entire rational enhancement of convective heat transfer process implementation area according to Reynold's creation values. Thermal and aerodynamic characteristics are obtained in the investigated heat transfer surface in the criteria for providing reliable design calculations of full-sized heat transfer apparatus for various purposes. The possibility of reducing the volume and mass of heat transfer apparatus has been proved in using plate-chat-ribbed heat transfer surface with channels and with diaphragm.