What is the main objective of a vapor recovery system?

The main objective of a vapor recovery system is to capture and condense vapors from tanks. This system is primarily utilized in the handling and storage of fuel to prevent the release of volatile organic compounds (VOCs) into the atmosphere. By effectively capturing vapors that would otherwise be lost during the loading and unloading of liquid fuel, the system not only helps in reducing air pollution but also increases the efficiency of fuel usage by returning the captured vapors back to the storage system or processing them into a usable form. This technology aids in environmental compliance and minimizes the potential safety hazards associated with flammable vapors.

Other options, while relevant to different operational or engineering contexts, do not pertain directly to the primary function of a vapor recovery system. Enhancing engine performance may involve various tuning and modification methods, reducing fuel consumption is related more to the overall efficiency of the engine and related systems, and maintaining pressure in fuel lines is a function of fuel delivery systems but not specifically linked to vapor recovery. Thus, the correct answer focuses accurately on the core purpose of vapor recovery systems in the context of fuel management and environmental protection.