|
A durable elbow support is an accessory product used in the commercial and residential HVAC industry to shape flexible ducts into efficient 90-degree bends. It is also sometimes defined as a "radius forming brace." Where HVAC ducts need to bend or turn, the elbow creates a sturdy 90-degree angle and keeps the duct from kinking or folding, thereby increasing energy efficiency. This can improve consistency of temperature in rooms that are heated and air conditioned, lower the cost of utility bills, and reduce energy consumption. Durable elbow supports can be installed on both new and existing HVAC systems. Manufactured and marketed under several brands, the durable elbow support is often specified by mechanical engineers and widely recommended by environmental agencies because it has been proven to improve energy efficiency. == Environmental Impact == Because the durable elbow support improves efficiency of HVAC systems, it is recommended by the United States Leadership in Energy and Environmental Design (LEED) certification program, earning one EA credit for optimizing energy performance and four MR credits for recycled content. LEED also lists the durable elbow support on its GreenSpec list. An article by Chris Van Rite of M & M Manufacturing notes that, while federal standards for HVAC efficiency have raised the standard of overall performance, they do not specifically address duct work which has declined in quality because of budgetary corner cutting. Van Rite notes that air flow, however, is critical to the efficiency of HVAC operations and that most building codes fail to inspect for it. His article recommends durable elbow support as part of HVAC systems. Installing durable elbow supports are recommended in several energy guides co-authored by the United States Department of Energy, the United States Green Building Council, and the American Institute of Architects. In recommending the durable elbow support, the University of Vermont's ''Product Insider'' notes that HVAC systems account for 40 to 60 percent of energy consumed by both commercial and residential buildings in the United States. The ''Product Insider'' also says that "Restricted airflow causes air handlers, furnaces, and A/C units to run longer cycles wasting and consuming excessive amounts of energy." 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「Durable elbow support」の詳細全文を読む スポンサード リンク
|