DEVELOPMENT OF BUBBLY BOILING IN CHANNEL FLOW

摘要: The development of bubbly boiling in a tubular channel is investigated experimentally. Boiling conditions are achieved by decreasing the pressure and mass flux density medium flowing channel. It found that under certain favorable circumstances at outlet from heated channel, is, place highest liquid superheat, front formed then propagates upstream. propagation velocity depends on, among other factors, void fraction, drop giving rise to boiling, heat wall. Based on acquired experimental data, correlation elaborated form nondimensional criterial numbers describing flow. investigations also indicate wave character