Ullage calculation. In the context of a fuel storage tank, ullage refers to ...
Ullage calculation. In the context of a fuel storage tank, ullage refers to the empty space at the top of the tank above the fuel level. com, https://www. 2. This word was, in turn, taken in medieval French as oeil, from which a verb ouiller was created, meaning to fill a barrel to full capacity. com Dictionary, Vocabulary. Copy citation Examples from books and articles Ullage definition: The amount of liquid within a container that is lost, as by leakage, during shipment or storage. Ullage is the term used to describe the empty space in a container, such as a bottle or a tank. The amount by which a container, such as a bottle, cask, or tank, falls short of being full. In simple terms, ullage is the gap between the liquid's surface and the top of the container — the air volume present when a container isn't filled to capacity. ullage, n. vocabulary. Copy citation Examples from books and articles Jul 18, 1998 · The word has been transferred into the vocabulary of rocket scientists to mean much the same: the unfilled space at the top of liquid fuel tanks, left to permit the fuel to expand with changes in temperature. . It represents the difference between the container's total capacity and the actual volume of liquid it holds. meanings, etymology, pronunciation and more in the Oxford English Dictionary Feb 19, 2026 · "Ullage. The word ullage comes from the Latin word oculus, used by the Romans to refer to a barrel cork hole. Definition of ullage Ullage refers to the empty space or shortfall in a container that is intended to be full of liquid. Accessed 19 Feb. See examples of ullage used in a sentence. ULLAGE definition: the amount by which the contents fall short of filling a container, as a cask or bottle. 2026. Feb 19, 2026 · "Ullage. The amount of liquid within a container that is lost, as by leakage, during shipment or storage. The meaning of ULLAGE is the amount that a container (such as a tank or cask) lacks of being full. The air space between the oil surface and the top of the tank is known as ullage. The space between the top of the propellant load and the top of the tank is known as ullage space. Generally the greater the amount of ullage, the more potential that the wine has been exposed to harmful levels of oxidation. com/dictionary/ullage. Ullage definition: The amount of liquid within a container that is lost, as by leakage, during shipment or storage. The meaning of ULLAGE is the amount that a container (such as a tank or cask) lacks of being full. " Vocabulary. Aug 22, 2025 · At its core, ullage refers to the amount of empty space in a container, such as a bottle, tank, or barrel, when it is partially filled. Keeping the fuel storage tank full at all times keeps the ullage at the top of the tank to a minimum. Ullage is the volume which is left empty in a tank so that there is space for the liquid in the tank to expand. ewd dlz caz dzn myl qma ijt fua ekt owx iqb deh peb xqi pya
