In LNG systems, what is the purpose of a vaporizer?

The purpose of a vaporizer in LNG (Liquefied Natural Gas) systems is to increase the temperature of LNG, enabling it to change from a liquid state back into a gaseous state. This is crucial for the system's operation because LNG must be converted back into gas before it can be safely delivered and used as fuel.

Vaporizers function in various ways, including using heat exchangers or electric heating elements to raise the temperature of the LNG. This transition is essential for facilitating the flow of natural gas in pipelines and for meeting the specific requirements of end-users, such as industrial customers or power plants.

Other choices presented do not describe the vaporizer's function accurately. While LNG needs to be stored and its pressure measured, these tasks are accomplished by different equipment, making them unrelated to the specific role of a vaporizer. Additionally, the process of converting gas to liquid is contrary to the vaporizer's purpose, as the vaporizer is designed to do the opposite.