On August 30, 2024, China celebrated a significant advancement in maritime technology as the country’s first dual-fuel hopper dredger, Xin Hai Xun, successfully returned from its LNG-powered sea trials. This 15,000-cubic-metre vessel sets a new benchmark in China’s dredging industry, embracing sustainable practices and cutting-edge technology.
The Importance of Xin Hai Xun in China’s Maritime Industry
Built by Shanghai Zhenhua Heavy Industries (ZPMC) for China Communications Construction Company (CCCC), Xin Hai Xun represents a significant leap forward. This vessel is the first in China to use liquefied natural gas (LNG) as its primary fuel source, closing a critical gap in the domestic market for eco-friendly dredging solutions.
Key Benefits of LNG Propulsion for the Dredger Industry
The LNG propulsion system not only matches the performance of conventional diesel engines but also offers substantial environmental benefits. These include:
- A 90% reduction in nitrogen oxide emissions
- A 20% reduction in carbon dioxide emissions
This makes Xin Hai Xun a prime example of China’s commitment to reducing its carbon footprint while maintaining high-performance standards.
Why LNG is the Future of Dredging
The shift to LNG in vessels like Xin Hai Xun highlights a growing global trend toward cleaner, more efficient fuel options in the maritime industry. LNG is not only a cost-effective alternative to diesel but also significantly lowers harmful emissions, contributing to greener shipping operations.
Successful Sea Trials: Key Achievements of Xin Hai Xun
During the sea trials, Xin Hai Xun passed several critical tests, affirming the reliability of its LNG system. Key milestones included:
- Seamless fuel-to-gas switching for main and auxiliary engines
- Durability testing in gas mode
- Dynamic positioning (DP) functionality
- Controllable pitch propeller (CPP) operations
- Successful dredging and bow blowing in gas mode
These accomplishments confirm the vessel’s capabilities in real-world conditions, demonstrating that dual-fuel dredgers can operate efficiently and sustainably.
Dynamic Positioning and Controllable Pitch Propeller: Enhancing Efficiency
The incorporation of dynamic positioning and a controllable pitch propeller ensures precise control, boosting the vessel’s overall efficiency. This is especially critical in dredging operations, where precision is paramount.
ZPMC’s Role in Advancing Green Maritime Technology
ZPMC has long been committed to the development of environmentally friendly vessels, and Xin Hai Xun is a testament to this vision. Earlier this year, the vessel received the “Product Carbon Footprint Certificate,” solidifying its status as a green and low-carbon solution for dredging operations.
Commitment to Low-Carbon Shipping
ZPMC’s work on Xin Hai Xun reflects a broader industry movement toward sustainable shipping practices. As global regulations tighten on emissions, vessels like Xin Hai Xun are setting new standards for the industry, promoting a future where maritime operations are both high-performing and eco-friendly.
Conclusion: The Future of Dual-Fuel Dredgers in China
Xin Hai Xun not only fills a crucial gap in China’s maritime industry but also sets the stage for the future of dual-fuel technology in the dredging sector. With its successful sea trials and certification, this vessel is poised to become a benchmark for environmentally responsible dredging in China and beyond.