performance energy ratio
11List 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 …
12Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… …
13Coefficient of performance — The coefficient of performance or COP (sometimes CP), of a heat pump is the ratio of the change in heat at the output (the heat reservoir of interest) to the supplied work. Contents 1 Equation 2 Derivation 3 Improving COP 4 …
14Seasonal energy efficiency ratio — The efficiency of air conditioners is often rated by the Seasonal Energy Efficiency Ratio (SEER) which is defined by the [Air Conditioning, Heating, and Refrigeration Institute] in its standard ARI 210=240, Performance Rating of Unitary Air… …
15Zero-energy building — BedZED zero energy housing in the UK A zero energy building, also known as a zero net energy (ZNE) building, Net Zero Energy Building (NZEB), or Net Zero Building, is a popular term to describe a building with zero net energy consumption and zero …
16Fineness ratio — is a term used in aerospace engineering to describe the overall shape of a streamlined body. Specifically, it is the ratio of the length of a body to its maximum width; shapes that are short and fat have a low fineness ratio, those that are long… …
17Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… …
18Bicycle performance — Lance Armstrong in a 2004 Tour de France individual time trial …
19Concentration ratio — In economics, a concentration ratio is a measure of the total output produced in an industry by a given number of firms in the industry. The most common concentration ratios are the CR4 and the CR8, which means the four and the eight largest… …
20Solar thermal energy — Solar thermal system for water heating in Santorini, Greece …
