Thermal energy storageThermal energy storage (TES) is achieved with widely different technologies. Depending on the specific technology, it allows excess thermal energy to be stored and used hours, days, months later, at scales ranging from the individual process, building, multiuser-building, district, town, or region. Usage examples are the balancing of energy demand between daytime and nighttime, storing summer heat for winter heating, or winter cold for summer air conditioning (Seasonal thermal energy storage).
Scenario planningScenario planning, scenario thinking, scenario analysis, scenario prediction and the scenario method all describe a strategic planning method that some organizations use to make flexible long-term plans. It is in large part an adaptation and generalization of classic methods used by military intelligence. In the most common application of the method, analysts generate simulation games for policy makers.
Air ductUn air duct (ou airduct), anglicisme signifiant "Conduite d'air", est un conduit en plastique à fixer à l'intérieur de la tour (souvent sur le côté) d'un ordinateur. L'air duct permet, grâce à l'utilisation conjointe d'un ventilateur, de diriger l'air frais provenant de l'extérieur de la tour directement sur l'endroit à refroidir, sans que cet air frais ne se disperse dans l'air plus chaud de la tour. La plupart du temps, un air duct sert à diriger l'air frais sur le microprocesseur (CPU), ou plus rarement sur le processeur graphique (GPU).
AirflowAirflow, or air flow, is the movement of air. The primary cause of airflow is the existence of air. Air behaves in a fluid manner, meaning particles naturally flow from areas of higher pressure to those where the pressure is lower. Atmospheric air pressure is directly related to altitude, temperature, and composition. In engineering, airflow is a measurement of the amount of air per unit of time that flows through a particular device. It can be described as a volumetric flow rate (volume of air per unit time) or a mass flow rate (mass of air per unit time).
EconomizerEconomizers (US and Oxford spelling), or economisers (UK), are mechanical devices intended to reduce energy consumption, or to perform useful function such as preheating a fluid. The term economizer is used for other purposes as well. Boiler, power plant, heating, refrigeration, ventilating, and air conditioning (HVAC) uses are discussed in this article. In simple terms, an economizer is a heat exchanger. Robert Stirling's innovative contribution to the design of hot air engines of 1816 was what he called the 'Economiser'.
