What is the key factor in the design of CNG fuel supply systems?

The key factor in the design of CNG fuel supply systems is safety and functionality for vehicular engines. When it comes to compressed natural gas (CNG), the design must prioritize safety due to the high pressures involved in storing and transporting the gas. CNG systems need to ensure that fuel is delivered efficiently to the engine while also preventing leaks and potential hazards.

Moreover, the functionality of the system is crucial for optimal engine performance. The design must accommodate the specific fuel injection and combustion characteristics of CNG in order to maximize efficiency and power output in vehicles that run on this alternative fuel. A well-designed system will enhance the overall operational reliability and performance of the vehicle.

In contrast, while cost-effectiveness and environmental impact are important considerations, they are secondary to the paramount concerns of safety and ensuring the system works properly with the engine. Aesthetic appeal is not a critical factor in technical design when it comes to CNG systems; instead, practical engineering concerns take precedence.