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A wind tunnel dispersion modeling study was conducted

to investigate exhaust contamination of hidden versus visible

air intakes. A “hidden” intake is typically on a building sidewall

or on the sidewall of a roof obstruction opposite the

exhaust source. A “visible” intake is at roof level or on top of

an obstruction, directly above the hidden intake. Overall, the

study has shown what designers suspected: placing air intakes

on building sidewalls is beneficial when the stacks are on the

roof. Significant concentration reductions were found when air

intakes are placed right below the building roof edge on the

building sidewall. The farther down the building sidewall the

air intake is placed, the larger the reduction. However, the largest

relative reduction between a visible and hidden intake is

achieved by just moving the intake a few feet from the edge of

the building roof to a point just around the corner on the building

sidewall.

1 Answer

Rating
  • 阿娜
    Lv 6
    1 decade ago
    Favorite Answer

    風洞模擬研究分散進行

    調查排氣污染隱患與可見

    進氣口。一個“隱藏”的攝入量通常是在建設邊牆

    或側壁屋頂對面梗阻

    廢氣來源。一個“看得見”攝入量是在頂層或頂部

    障礙,正上方的隱藏攝入。總體而言,

    研究表明什麼設計師懷疑:把進氣口

    建設側壁有利於在棧上

    屋頂。濃度顯著減少被發現時,空氣

    進氣口被置於下方建設的屋脊邊緣

    建設邊牆。在沿著建設的側壁

    進氣口被放置,較大的減少。然而,最大的

    相對減少之間的可見和隱藏的攝入量是

    所取得的攝入量僅移動幾英尺的邊緣

    建築物屋頂點指日可待建設

    側壁。

    以上的資料 請參考一下

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