Having identiﬁed supercritical CO2 as a working ﬂuid to demonstrate, Brunel required a primary heat exchanger to capture the heat with a speciﬁcation exceeding the state of the art. The heat exchanger required a very low shell side (ﬂue gas) pressure drop, yet able to withstand working pressures up to 130 bar, and temperatures up to 650°C.
Using proprietary modelling software, the Applied Technologies team designed and developed a heat exchanger to deliver the required performance well within the pressure drop requirements – as well as the capability to deliver additional heat recovery for a future proofed system. The installed system captures the waste heat from an exhaust duct, and converts it to useful electrical energy (via a turbine) for export to the electrical grid. The complete primary heat exchanger was designed to ASME BPVC and was fully CE marked (Cat. IV PED).