Compared to CNG, does LPG have a higher caloric value and stored at lower pressure?

LPG does indeed have a higher caloric value compared to CNG, making it a more energy-dense fuel. This means that LPG can produce more energy per unit of volume, which is a significant advantage in terms of fuel efficiency for many applications.

In terms of pressure, LPG is stored at lower pressure than CNG. CNG (Compressed Natural Gas) is high-pressure gas, typically stored at pressures around 3,000 to 3,600 psi, whereas LPG is stored as a liquid under much lower pressures—usually around 100 to 200 psi. This makes LPG storage systems simpler and often more practical for certain applications.

Understanding these differences is crucial for applications in marine systems and other technologies, as the choice between these fuels can influence design, safety requirements, and operational costs.