A researcher and a professor in China have made new progress in ammonia leakage monitoring of ammonia-fuelled ships by proposing a complete wireless transmission self-powered sensing system.
Feng Liang, a researcher at the Chemical Sensor Research Group of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and Xu Minyi, a professor at the School of Marine Engineering, Dalian Maritime University were behind the research paper published in April this year.
In this work, a self-powered full-set ammonia leakage monitoring device was demonstrated, containing power generation system based on a triboelectric nanogenerator (TENG), ammonia sensing system based on carbon nanotube doped polypyrrole (CNTs-PPy) and signal collecting and transmitting system.
The paper, published in Nano Energy, was titled A full-set and self-powered ammonia leakage monitor system based on CNTs-PPy and triboelectric nanogenerator for zero-carbon vessels.
This equipment has a good application prospect on NH3-fuelled ships, says the paper.
In recent years, as a marine fuel, liquid ammonia has the characteristics of zero carbon, safe storage and high energy density, and has attracted more and more researchers and practitioners in the shipping industry.
With the further development of ammonia as a new energy fuel, it is urgent to develop a sustainable, accurate and low power consumption detection device for ammonia leakage.
It is expected to become one of the most important bunker fuels in the future. However, long-term exposure to excessive ammonia gas can lead to ammonia poisoning. In the narrow engine room, ammonia leakage will seriously endanger the physiological health of the crew.
Therefore, it is crucial to develop a method to accurately monitor ammonia concentration in real time for long-distance sea voyages.
The self-powered and wireless full-set device can achieve the long-term and maintenance-free detection of ammonia leakage during the ocean voyage, which will play an important role in the further application of ammonia energy.
The research work was supported by the Innovation Fund of Dalian Institute of Chemical Physics.
Note: The research paper ‘A full-set and self-powered ammonia leakage monitor system based on CNTs-PPy and triboelectric nanogenerator for zero-carbon vessels’ can be found here.
Photo credit: Science Direct
Published: 11 May, 2022
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