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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク High-volume low-speed fan ： ウィキペディア英語版 High-volume low-speed fan A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than in diameter. HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed." Typical applications for HVLS fans fall into two classifications—industrial and commercial. In industrial applications, air conditioning is often cost prohibitive or impractical.〔(【引用サイトリンク】url=http://www.eia.gov/consumption/commercial/building-type-definitions.cfm#Warehouse )〕 Fans installed in spaces like warehouses, barns, hangars and distribution centers can prevent heat stress, increase worker comfort and the productivity of both workers and livestock. HVLS fans are also used in commercial spaces, where air conditioning is more common, but increased air movement from ceiling fans can cost-effectively augment occupant comfort or prevent stratification. Typical commercial applications include shopping malls, churches, office buildings, fitness centers and schools. A critical concern for many commercial spaces, like schools and libraries, is sound sensitivity and quiet operation. In contrast, industrial spaces have a median dBA of 85〔(【引用サイトリンク】url=https://www.osha.gov/dts/osta/otm/new_noise/ )〕 or higher, and prioritize air movement (effective in combating heat stress)〔(【引用サイトリンク】url=https://www.osha.gov/SLTC/heatstress/ )〕 over silent operation. ==History== In the late 1990s, William Fairbank, a professor at the University of California at Riverside, and Walter K. Boyd invented and patented a new type of circulator fan, first called a High-Volume, Large-Diameter (HVLD) fan.〔(【引用サイトリンク】url=http://www.google.com/patents/US6244821 )〕 This type of fan was originally developed for agricultural applications, so early research focused on the benefits of HVLS fans on dairy production.〔(【引用サイトリンク】url=http://www.uwex.edu/ces/dairymod/cowhousing/documents/HVLSFans.pdf )〕〔(【引用サイトリンク】url=https://www.sce.com/NR/rdonlyres/E714910E-3428-4B62-AC0A-77CB40139776/0/AgDairyFansFactSheet.pdf )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「High-volume low-speed fan」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.