Patent attributes
A heat exchanger system for transferring heat between two fluids that includes at least two heat exchangers each having a top and bottom. The heat exchangers include a fluid collector, multiphase distributor, and a plurality of multi-duct tubes coupled therewith. One fluid flows around the multi-duct tubes, while the other fluid flows within the multi-duct tubes, with heat transfer occurring via a fluidically separate coupling of the fluids. One heat exchanger is configured with an upward flow design, for heating, in which the two fluids flow opposite to gravity and parallel to each other through the heat exchanger (bottom to top). The other heat exchanger is configured with a downward flow design, for cooling, in which one fluid flows opposite to gravity through the heat exchanger (bottom to top) and the other fluid flows anti-parallel to the one fluid with gravity through the heat exchanger (top to bottom).
