Retractable Containment Barriers for NGV Service Area Segmentation
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Solution Overview
Problem
Existing maintenance facilities designed for conventional gasoline-operated vehicles are not adequately equipped to handle the growing demand for natural gas vehicles (NGVs), as they require costly and invasive upgrades to meet NGV-specific safety and regulatory standards, which can be overkill for facilities servicing both conventional and NGVs, and lack scalability.
Innovation Solution
A retractable and adaptable separation and containment system using industrial materials like PVC-coated vinyl and urethane-coated nylon, integrated with a track system, allows for the creation of a scalable NGV-compliant service area within an existing facility, minimizing the need for extensive upgrades and enabling easy conversion between NGV and conventional service areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing maintenance facilities are upgraded to meet NGV-specific safety and regulatory standards, then safety and compliance are improved, but cost and structural complexity increase significantly
Solution Approach 1:
The facility is divided into separate zones: an NGV service area enclosed by containment barriers and a conventional service area. This segmentation allows each zone to have its own specific safety features without requiring the entire facility to be upgraded, thus improving NGV safety while avoiding unnecessary complexity in the conventional area.
Solution Approach 2:
The NGV containment requirements are extracted from the entire facility and applied only to the specific NGV service area. The containment barriers, ventilation systems, and safety features are isolated to where they are actually needed, reducing overall facility complexity while maintaining required safety standards.
2Reliability
If existing maintenance facilities are upgraded to meet NGV-specific safety and regulatory standards, then safety and compliance are improved, but financial cost increases
Solution Approach 1:
Safety features and regulatory compliance measures are applied locally only to the NGV service area rather than the entire facility. The containment barriers, specialized ventilation, and safety equipment are installed only where NGVs are serviced, reducing material costs and installation expenses while still meeting safety requirements.
Solution Approach 2:
By segmenting the facility into NGV and conventional service areas, the patent avoids the need to upgrade the entire facility. Only the NGV zone requires specialized safety features, significantly reducing the overall financial investment needed compared to a full facility upgrade.
3Reliability
If existing maintenance facilities are upgraded to meet NGV-specific safety and regulatory standards, then safety and compliance are improved, but scalability and flexibility decrease
Solution Approach 1:
The containment barriers are designed to be movable rather than fixed, allowing the NGV service area to be dynamically adjusted in size and location. This enables the facility to scale up or down based on demand, and allows flexible reconfiguration as service requirements change, while maintaining safety compliance.
Solution Approach 2:
The containment barriers serve multiple functions: they provide safety containment for NGVs, define service area boundaries, and can be reconfigured to accommodate different service scenarios. This multi-functionality increases facility versatility without compromising safety requirements.
4Reliability
If containment barriers are made fixed and permanent, then safety containment is improved, but adaptability and reconfigurability worsen
Solution Approach 1:
The containment barriers are designed as movable structures that can be positioned and repositioned as needed. When deployed, they provide effective containment for safety; when repositioned, they allow the service area configuration to adapt to different operational requirements, thus achieving both containment effectiveness and reconfigurability.
Solution Approach 2:
The barriers transition between different states (deployed/containing vs. retracted/non-containing), allowing the system to change its containment parameter based on operational needs. This enables the same structure to provide strong containment when required and allow open access when the NGV area is not in use.
Data Source
AI summary
A separation and containment system is provided. The separation and containment system can contain natural gasses, e.g., compressed natural gas (CNG) and liquefied natural gas (LNG), within a natural gas vehicle (NGV) service area, and separate the NGV service area from a conventional service area. The separation and containment system utilizes one or more barriers, such as industrial fabric/vinyl materials that meet various regulatory safety standards applicable to NGVs. The separation and containment system is easily constructed, dismantled, and resized/adapted in accordance with desired operating conditions.