Described herein is a heat exchanger assembly that comprises a first heat exchanger comprising a first inlet header, a first outlet header, and a plurality of first heat exchange tubes fluidically connected to and extending between the first inlet header and the first outlet header. The heat exchanger assembly further comprises a second heat exchanger comprising a second inlet header, a second outlet header, and a plurality of second heat exchange tubes fluidically connected to and extending between the second inlet header and the second outlet header. Further, the heat exchanger assembly comprises a first outlet connector connected to a first end of the first outlet header, and a second outlet connector connected to a first end of the second outlet header, wherein a second end, opposite to the first end, of the respective first outlet header and the second outlet header are adjacent to each other.

A heat exchanger includes a dividing structure configured to define, at least in part, a first volume and a second volume. The dividing structure is configured to permit a flow of a working fluid from the first volume to the second volume and configured to control a ratio of an upstream pressure in the first volume to a downstream pressure in the second volume by inducing an aerodynamic resistance in a flow of the working fluid between the first volume and the second volume. In certain embodiments, the flow of the working fluid between the first volume and the second volume is along a return flow path defined at least in part by the dividing structure, and the return flow path is a tortuous path or a convoluted path.