Providing Fully Developed Flow for Waste Exhaust Gas at the Inlet Region of a Heat Pipe Air Recuperator

This study explains the methodology for providing fully developed flow for waste exhaust gas at the inlet region of a heat pipe air recuperator

A fully developed flow must be provided for the waste exhaust gas at the inlet of the heat pipe air recuperator. Considering the hydrodynamic and thermal inlet lengths, the condition in which the inlet effects are limited and fully developed flow occurs can be determined as follows.

In order to obtain fully developed flow at the entrance of the waste exhaust gas to the heat pipe air recuperator, the gas will need to flow a certain distance within the inlet channel before entering the recuperator. In order to determine the distance required for the formation of the fully developed flow in question and thus to calculate the gas inlet side channel length, it must first be determined whether the in-channel flow is laminar or turbulent. In this case, the first determining parameter to be calculated will be the Reynolds number. [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36].