Movable Emission Control System for Ship Diesel Engines
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Solution Overview
Problem
Current options for reducing emissions from diesel auxiliary engines on ocean-going ships at berth are often cumbersome and expensive, and few alternative control techniques achieve equivalent emission reductions, leading to compliance issues with regulations like the CARB at-berth regulation.
Innovation Solution
A movable emissions reduction system comprising an emissions capturing system and an emissions control system, where the capturing system uses a telescoping or articulating duct to connect to the ship's diesel engine exhaust and direct it to a mobile emissions control system for treatment, allowing for regulatory-compliant air emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If shore power connections are used to reduce emissions, then emission reductions are achieved, but the system becomes cumbersome and expensive
Solution Approach 1:
The invention extracts the emission control function from the fixed shore power infrastructure and places it on a mobile platform that can be positioned near the vessel. This separates the emissions treatment capability from the complex shore power connection system, providing a simpler alternative that directly treats exhaust at the source without requiring electrical connections to the vessel.
Solution Approach 2:
The mobile emission control system acts as an intermediary between the vessel's auxiliary engine and the atmosphere. It captures exhaust through a telescoping duct, treats it on-site using emission control technology, and releases cleaned exhaust, thereby mediating the harmful interaction between ship operations and environmental pollution without requiring complex infrastructure changes.
2Object-generated harmful factors
If alternative control techniques are used to reduce emissions, then emission reductions are achieved, but equivalent emission reductions are difficult to achieve
Solution Approach 1:
The system segments the emission control process into distinct functional modules: exhaust capture via telescoping duct, emission treatment via control technology, and cleaned exhaust release. This modular segmentation allows each component to be optimized for its specific function, ensuring reliable and equivalent emission reductions while maintaining system flexibility and adaptability to different vessel types.
3Stability of the object's composition
If the emissions control system is fixed on shore, then stability is improved, but mobility and adaptability to different ships are reduced
Solution Approach 1:
The system employs a mobile platform with telescoping booms and articulating ducts that can dynamically adjust their position and configuration to match different vessel types and exhaust stack locations. This dynamic adaptability allows the same stable emission control technology to serve multiple ship configurations, combining the reliability of fixed systems with the flexibility needed for diverse applications.
Data Source
AI summary
A mobile emissions control system is provided for diesel engines operated on ocean-going ships at-berth. The emissions control system comprises two essential elements: an emissions capturing system and an emissions control system. The emissions control system may be mounted on a towable chassis or mounted on a barge, allowing it to be placed alongside ocean-going ships at-berth. The emission capturing system captures exhaust from a ship's diesel engine and conducts it into the emissions control system, which cleans the exhaust and then passes clean air into the atmosphere through an exhaust outlet.