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HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...
Air conditioning equipment will reduce the absolute humidity of the air processed by the system if the surface of the evaporator coil is significantly cooler than the dew point of the surrounding air. An air conditioner designed for an occupied space will typically achieve a 30% to 60% relative humidity in the occupied space.
Many loanwords are of Persian origin; see List of English words of Persian origin, with some of the latter being in turn of Arabic or Turkic origin. In some cases words have entered the English language by multiple routes - occasionally ending up with different meanings, spellings, or pronunciations, just as with words with European etymologies.
Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...
The hyphen ‐ is a punctuation mark used to join words and to separate syllables of a single word. The use of hyphens is called hyphenation. [1]The hyphen is sometimes confused with dashes (en dash –, em dash — and others), which are wider, or with the minus sign −, which is also wider and usually drawn a little higher to match the crossbar in the plus sign +.
Word British English meanings Meanings common to British and American English American English meanings daddy longlegs, daddy-long-legs crane fly: daddy long-legs spider: Opiliones: dead (of a cup, glass, bottle or cigarette) empty, finished with very, extremely ("dead good", "dead heavy", "dead rich") deceased
English had also borrowed large numbers of words from French, and kept their French spellings. The spelling of Middle English is very irregular and inconsistent, with the same word being spelled in different ways, sometimes even in the same sentence. However, these were generally much better guides to the then-pronunciation than modern English ...
Pages in category "Heating, ventilation, and air conditioning" The following 200 pages are in this category, out of approximately 248 total. This list may not reflect recent changes .