Evaporation – Definition and Pronunciation
What is Evaporation?
Evaporation is the process by which a liquid changes into a gas or vapor at a temperature below its boiling point. This occurs when molecules at the surface of the liquid gain enough energy to enter the gaseous phase. Evaporation is a key part of the water cycle and is essential in various natural and industrial processes.
Examples of Evaporation
Evaporation at different rates means that the gas delivered at the end of the voyage has a slightly lower proportion of nitrogen and methane than when loaded and a higher proportion of ethane, propane and butane.
From Characteristics of Natural Liquefied Gases“Natural Gas Chemical Properties and its Transportation”.
The vapor and pool ignition tests have resulted in data on evaporation rates, downwind vapor concentration, flame propagation, and radiation characteristics.
This is necessary to minimise thermal stresses and to avoid an excessive rise in tank pressure due to flash evaporation during bulk loading.