Energy terms . 2014.
Thermal efficiency — In thermodynamics, the thermal efficiency (eta {th} ,) is a dimensionless performance measure of a thermal device such as an internal combustion engine, a boiler, or a furnace, for example. The input, Q {in} ,, to the device is heat, or the heat… … Wikipedia
Annual fuel utilization efficiency — The annual fuel utilization efficiency (AFUE; pronounced A Few ) is a thermal efficiency measure of combustion equipment like furnaces, boilers, and water heaters. The AFUE differs from the true thermal efficiency in that it is not a steady state … Wikipedia
HISTORICAL SURVEY: THE STATE AND ITS ANTECEDENTS (1880–2006) — Introduction It took the new Jewish nation about 70 years to emerge as the State of Israel. The immediate stimulus that initiated the modern return to Zion was the disappointment, in the last quarter of the 19th century, of the expectation that… … Encyclopedia of Judaism
California Polytechnic State University — This article is about the university in San Luis Obispo, California. For Cal Poly Pomona in Pomona, California, see California State Polytechnic University, Pomona. California Polytechnic State University Motto Discere Faciendo (Latin) … Wikipedia
List of energy abbreviations — This is a list of abbreviations found in the context of energy issues. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y … Wikipedia
Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is … Wikipedia
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
Temperature — This article is about the thermodynamic property. For other uses, see Temperature (disambiguation). A map of global long term monthly average surface air temperatures i … Wikipedia
Economic growth — GDP real growth rates, 1990–1998 and 1990–2006, in selected countries … Wikipedia
Buck converter — A buck converter is a step down DC to DC converter. Its design is similar to the step up boost converter, and like the boost converter it is a switched mode power supply that uses two switches (a transistor and a diode) and an inductor and a… … Wikipedia
