Hydrocurrent® is a new-technology system developed by Calnetix and Mitsubishi Heavy Industries Marine Machinery and Engine Company (MHI-MME). It uses an Organic Rankine Cycle (ORC) process with a proprietary turbo-generator to convert thermal energy from an engine's jacket water into usable electricity for shipboard consumption. The system was first introduced in 2014 and underwent successful classification society tests with Lloyd's Register and Class NK.
The first ship installation took place in April 2016 on the ABS-classed A.P.Møller containership MV Arnold Maersk. The White Paper, entitled Commissioning and Initial Shipboard Operation of Hydrocurrent 125 kW Marine Heat Recovery System, describes the installation, commissioning and initial operational results achieved on the ship during its first voyage after the system was put into service.
"The commissioning tests and operational data reveal the Hydrocurrent installation on Arnold Maersk met or exceeded expectations," said Calnetix CEO Vatche Artinian. "It consistently produced 110 to 115 kW of electric power to the ship's grid throughout the voyage, during which the crew adjusted the cooling water flow into the condenser receiving tank downward by reducing power to the water pump. When operated at full cooling water flow, the system put out 125 kW."