On the natural circulation in pipe bunch immersed in the boiling liquid volume

The article presents the results of the calculation of a simple natural-circulation disorganized circuit; the results were generated using a developed mathematical model. The release of steam into a down lane is a distinctive feature of the operation of such circuits. Classification of down pipe lanes is proposed, depending on the throughput of the lather, and peculiarities of the working fluid movement in the circuit with pipe lanes of different width are described. 3 refs., 5 figs