How does temperature affect vapor recovery efficiency?

• A. Temperature has no effect on vapor recovery
• B. Lower temperatures can increase vapor pressure
• C. Higher temperatures can increase vapor pressure, impacting capture efficiency
• D. Temperature only affects the mechanical parts of the system

Answer: (C)

Higher temperatures can increase vapor pressure, which significantly impacts capture efficiency in vapor recovery systems. As temperature rises, the liquid hydrocarbons in the fuel become more volatile, leading to an increase in vapor pressure. This results in a greater amount of vapor being present that needs to be captured.

In vapor recovery systems, efficient capture of vapors is essential to minimize emissions and improve air quality. If vapor pressure is too high, it can overwhelm the system's ability to recover the vapors effectively, leading to losses. Therefore, understanding the relationship between temperature and vapor pressure is crucial for optimizing vapor recovery processes.

By maintaining appropriate temperature levels, operators can enhance vapor capture efficiency, making it vital for compliance with air quality regulations and the effective functioning of vapor recovery systems.