Innovation of Thermoelectric Conversion Stirling Device for Recovering Heat from Ship Exhaust Gas
Merchant Marine College, Shanghai Maritime University, Shanghai 201306,
| Abstract: | With the implementation of the national carbon neutralization and carbon peak strategy, the technology of shipping energy conservation and emission reduction has also been concerned by the public. As there are high-power engines and generator sets in the engine room of the ship, the waste heat temperature of waste gas generated during equipment operation is extremely high, which can be as high as thousands of degrees Celsius. The device first converts waste gas waste heat into mechanical energy through Stirling machine, and then converts it into electrical energy through external generator. The whole working process produces electric energy while reducing the ambient temperature, and improves the utilization efficiency of waste heat. According to the preliminary experiment, about 3.3v electric energy can be generated when the temperature is 433°C. The device has simple structure, no complex mechanical structure, high safety and strong reliability. If multiple equipment can be used in the marine engine room at the same time, it will have a positive help to achieve the goals of carbon neutralization and carbon peak. |
| Keywords: | Engine Room Waste Heat; Stirling Engine; Energy Saving and Emission Reduction |
| DOI: | 10.57237/j.jest.2022.01.005 |
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Received: 25 November 2022
Accepted: 13 January 2023
Published Online: 3 February 2023
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