Organic Rankine Cycle
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Publication Name: Hydrocurrent Organic Rankine Cycle Module 125EJW - Compact and High-performance Waste Heat Recovery System Utilizing Low Temperature Heat Source
Original File Name Searched: e524053.pdf
Page Number: 001
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Mitsubishi Heavy Industries Technical Review Vol. 52 No. 4 (December 2015)
HydrocurrentTM Organic Rankine Cycle Module 125EJW - Compact and High-performance Waste Heat Recovery System Utilizing Low Temperature Heat Source -
Mitsubishi Heavy Industries
Marine Machinery & Engine Co., Ltd.
A waste heat recovery system is installed in marine vessels to reduce their fuel consumption, which simultaneously can reduce the emission of pollutants such as CO2. We have developed a compact and high-performance waste heat recovery system HydrocurrentTM (Note) Organic Rankine Cycle (ORC) Module 125EJW in conjunction with Calnetix Technologies, LLC (Head office: Cerritos, California, U.S.A.; hereinafter referred to as Calnetix). This system can capture the heat from low-temperature heat sources such as the jacket cooling water of the main engine of the ship, which could not be used for this purpose, and convert it to electric power for shipboard consumption.
In this system, a radial turbine newly developed by Mitsubishi Heavy Industries Marine Machinery & Engine Co., Ltd. is mounted in Calnetix’s established standard system for waste heat recovery, which in itself has earned a solid reputation as onshore equipment of this kind. This new waste heat recovery system gained class approval from Nippon Kaiji Kyokai (NK) and Lloyd’s Register (LRS), and was launched in the market as our next strategic product.
Note: HydrocurrentTM is a trademark of Calnetix.
The specifications and configurations of the system are given in Tables 1 and Figure 1, respectively.
Table 1 System specifications
HydrocurrentTM ORC 125EJW
Rated output Refrigerant R245fa
Heat source temp.
Output voltage Frequency
Directly-coupled turbine-driven, permanent magnet synchronous generator
Approx. 16,000 rpm (variable)
The following are the features of this system. High efficiency
High efficiency is achieved by the supporting structure of the magnetic bearings with no frictional loss and the reduced leakage loss by the newly-developed radial turbine (Figure 2).
A compact generator is realized by integrating the radial turbine with the high-speed
permanent magnet generator.
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