World News
White Paper Published on Bunker Saving Waste Heat Recovery System
Calnetix Technologies, LLC. (Calnetix) has announced the release of a white paper on its newly developed "Hydrocurrent" waste heat recovery system that could provide bunker savings of 200 tonnes per year by converting thermal energy from heat in the engine's jacket water into mechanical power to generate electricity.
"With fuel accounting for a very high percentage of a ship's daily operating cost, there is increasing demand for solutions to reduce fuel consumption, with an additional benefit of reducing emissions into the atmosphere," said Calnetix.
"One promising technology is waste heat recovery."
Calnetix says the Hydrocurrent technology was developed in close cooperation with Mitsubishi Heavy Industries Marine Machinery and Engine Company (MHI-MME), and test data indicates that by reducing the load on the ship's diesel generators the system gives savings of 200 tonnes of bunker fuel and a reduction in carbon monoxide emissions by 18 tonnes annually.
"Heat from engine exhaust is used on many ships for steam generation. To date, however, it has been difficult to extract heat from lower-grade heat such as the engine coolant," said Calnetix.
"Hydrocurrent technology aims to remove this barrier and tap into the low-grade jacket water heat to generate additional electrical power without incurring any additional fuel usage."
The heat recovery system is said to be capable of generating up to 125 kW of electrical power from a temperature source as low as 80⁰C.
The white paper, New-Technology Shipboard System Converts Heat from Engine Jacket Water into Electrical Power, also describes the components and functions of the Hydrocurrent waste heat recovery system, as well as a summary of test procedures and documented results.
In June, Calnetix announced at the Nor-Shipping conference that the Hydrocurrent system had gained class approval from Lloyd's Register and Nippon Kaiji Kyokai (ClassNK).
Key Bunker Prices More
| VLSFO | MGO | |||
|---|---|---|---|---|
| $/mt | +/- | $/mt | +/- | |
| Singapore | 511.00 | 2.00 | 602.00 | 3.00 |
| Rotterdam | 469.50 | 6.50 | 609.50 | 5.00 |
| Houston | 472.00 | 5.50 | 618.50 | 9.00 |
| Fujairah | 500.00 | 5.50 | 704.50 | 3.50 |
| Global 20 Ports Average | 531.00 | 1.50 | 706.50 | 3.50 |
| Global 4 Ports Average | 488.00 | 2.00 | 633.50 | 1.00 |
| Global Average Bunker Price | 569.50 | 0.50 | 752.50 | 0.00 |
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